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                            PATENT LICENSE AGREEMENT

Effective as of the date of execution by the last party to execute ("Effective
Date"), Lucent Technologies Inc. ("LUCENT"), a Delaware corporation having an
office at 600 Mountain Avenue, Murray Hill, New Jersey 07974, and SpecTran
Corporation ("SpecTran"), a Delaware corporation having an office at 50 Hall
Road, Sturbridge, MA 01566, agree as follows*:


                                    ARTICLE I
                               GRANTS OF LICENSES

1.01 GRANT

(a)  LUCENT grants to SpecTran under LUCENT's PATENTS worldwide, personal,
     nonexclusive and, subject to Sections 1.03(c) and 4.02, non-transferable
     licenses, with limitations as provided herein, for:

                                  OPTICAL FIBER

(b)  SpecTran grants to LUCENT under SpecTran's PATENTS worldwide, personal,
     nonexclusive, royalty-free and, subject to Sections 1.03(c) and 4.02,
     non-transferable licenses, with limitations as provided herein, for:

                                  OPTICAL FIBER

1.02 DURATION

All licenses granted herein under any patent shall continue for the entire
unexpired term of such patent.

1.03 SCOPE

(a)  Subject to the exclusions and limitations referred to in this Agreement,
     the licenses granted herein to SpecTran are licenses to (i) make, use,
     lease, offer to sell, sell, import subject to Section 1.04(d) and export
     LICENSED PRODUCTS; (ii) make, have made, use and import machines, tools,
     materials and other instrumentalities, insofar as such machines, tools,
     materials and other instrumentalities are involved in or incidental to the
     development, manufacture, testing or repair of LICENSED PRODUCTS which are
     or have been made, used, leased, owned, sold or imported by the grantee of
     such license; and (iii) convey to any customer of the grantee, with respect
     to any LICENSED PRODUCT which is sold or leased by such grantee to such
     customer, rights to use and resell such LICENSED PRODUCT as sold or leased
     by such grantee (whether or not as part of a larger combination); provided,
     however, that no rights may be conveyed to customers with respect to any
     invention which is directed to (1) a combination of such LICENSED PRODUCT
     (as sold or leased) with any other product, (2) a method or process which
     is other than the inherent use of such LICENSED PRODUCT itself (as sold or
     leased), or (3) a method or

- --------
*Any term in capital letters which is defined in the Definitions Appendix shall
have the meaning specified therein.
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     process involving the use of a LICENSED PRODUCT to manufacture (including
     associated testing) any other product.

(b)  The licenses granted herein to LUCENT are licenses to (i) make, have made,
     use, lease, sell and import LICENSED PRODUCTS; (ii) make, have made, use
     and import machines, tools, materials and other instrumentalities, insofar
     as such machines, tools, materials and other instrumentalities are involved
     in or incidental to the development, manufacture, testing or repair of
     LICENSED PRODUCTS which are or have been made, used, leased, owned, sold or
     imported by the grantee of such license; and (iii) convey to any customer
     of the grantee, with respect to any LICENSED PRODUCT which is sold or
     leased by such grantee to such customer, rights to use and resell such
     LICENSED PRODUCT as sold or leased by such grantee (whether or not as part
     of a larger combination); provided, however, that no rights may be conveyed
     to customers with respect to any invention which is directed to (1) a
     combination of such LICENSED PRODUCT (as sold or leased) with any other
     product, (2) a method or process which is other than the inherent use of
     such LICENSED PRODUCT itself (as sold or leased), or (3) a method or
     process involving the use of a LICENSED PRODUCT to manufacture (including
     associated testing) any other product.

(c)  The grant of each license hereunder includes the right to grant sublicenses
     within the scope of such license to a Party's RELATED COMPANIES for so long
     as they remain its RELATED COMPANIES, subject to Section 4.02(b). Any such
     sublicense may be made effective retroactively, but not prior to the
     effective date hereof, nor prior to the sublicensee's becoming a RELATED
     COMPANY of such Party.

1.04 EXCLUSIONS AND LIMITATIONS

(a)  No rights whatsoever are granted to SpecTran under any LUCENT PATENT to
     make, have made, use, offer to sell, sell or import the following products
     and processes: [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION;
     CONFIDENTIAL TREATMENT GRANTED]

(b)  No rights whatsoever are granted to SpecTran under Section 1.04(a)(ii)
     above for [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL
     TREATMENT GRANTED]


(c)  Subject to the exclusions and limitations in this Agreement (including
     Section 2.01(b) and 2.01(c), SpecTran's rights hereunder include the rights
     (i) within the United States only to make at its existing factories and
     (ii) abroad to make at factories of its foreign SUBSIDIARIES; provided,
     however that the combined domestic and foreign production of NZDF does not
     exceed the limitations of clause (iv) below unless the additional royalties
     are paid in accordance with Section 2.01(b) and (iii) subject to Section
     2.01(c):

          (i) offer to sell, sell and export worldwide multimode OPTICAL FIBER;
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          (ii) offer to sell, sell and export worldwide NON-PREMIUM OPTICAL
          FIBER;

          (iii) offer to sell, sell and export worldwide rare earth-doped
          optical fiber and Raman fiber for medical, military and distributed
          sensor applications; provided, however, no rights are granted for
          [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL
          TREATMENT GRANTED]; and

          (iv) Subject to Section 2.01(b) and (c), offer to sell and sell within
          the United States the following quantity of NZDF in each year, and to
          export for sale an equal quantity each year outside the United States,
          as follows:

          YEAR QUANTITY( kilo-kilometers per year) [REDACTED MATERIAL FILED
          SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED]



Prior to January 1, 2000, SpecTran's rights hereunder are limited to [REDACTED
MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED]

(d)    The Parties agree that no right is provided to SpecTran and/or its
       SUBSIDIARIES to import into the United States or for any SpecTran foreign
       SUBSIDIARY to directly or indirectly (e.g., through other countries)
       export to the United States under this Agreement.

1.05 ABILITY TO PROVIDE LICENSES

(a)    It is recognized that certain actions of the Parties to this Agreement
       may limit their ability to provide licenses hereunder without
       constituting a breach. In particular, (i) prior to the earliest filing of
       a patent application disclosing an invention of a Party or its RELATED
       COMPANY, such Party or RELATED COMPANY may assign to a third party the
       title to patents on such invention, or (ii) prior to the execution of
       this Agreement, a Party or its RELATED COMPANY may have limited by
       contract its ability to provide licenses hereunder with respect to
       certain patents or technologies.

(b)    Each Party agrees to disclose to the other Party, promptly upon receipt
       of a written request for such disclosure, any such assignment or other
       contractual limitation with respect to any patent licensed hereunder and
       which is specifically identified in such request.

(c)    A Party's failure to meet any obligation hereunder, due to the assignment
       of title to any invention or patent, or the granting of any licenses, to
       the United States Government or any agency or designee thereof pursuant
       to a statute or regulation of, or contract with, such Government or
       agency, shall not constitute a breach of this Agreement.
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1.06 JOINT INVENTIONS

(a)    There are countries (not including the United States) which require the
       express consent of all inventors or their assignees to the grant of
       licenses or rights under patents issued in such countries for joint
       inventions.

(b)    Each Party shall give such consent, or shall obtain such consent from its
       RELATED COMPANIES, its employees or employees of any of its RELATED
       COMPANIES, as required to make full and effective any such licenses and
       rights respecting any joint invention granted to the grantee hereunder by
       such Party and by another licensor of such grantee.

(c)    Each Party shall take steps which are reasonable under the circumstances
       to obtain from third parties whatever other consents are necessary to
       make full and effective such licenses and rights respecting any joint
       invention purported to be granted by it hereunder. If, in spite of such
       reasonable efforts, such Party is unable to obtain the requisite consents
       from such third parties, the resulting inability of such Party to make
       full and effective its purported grant of such licenses and rights shall
       not be considered to be a breach of this Agreement.

1.07 PUBLICITY

(a)    Nothing in this Agreement shall be construed as conferring upon either
       Party or its RELATED COMPANIES any right to include in advertising,
       packaging or other commercial activities related to a LICENSED PRODUCT,
       any reference to the other Party (or any of its RELATED COMPANIES), its
       trade names, trademarks or service marks or to indicate that such
       LICENSED PRODUCT is in any way certified by the other Party hereto or its
       RELATED COMPANIES.

(b)    Except as required by law and regulation, the terms, but not the
       existence, of this Agreement shall be treated as confidential
       information, and neither Party shall disclose such terms to any third
       party without the prior written consent of the other Party; provided,
       however, that either Party may represent to suppliers and customers that
       such Party is licensed for the products and patents provided by this
       Agreement, to the extent required for a specific commercial transaction
       with that supplier or customer. Where required by law and regulation, the
       Party in need of making such disclosure of certain terms of the agreement
       will seek the written consent of the other Party which will not be
       unreasonably withheld.
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                                   ARTICLE II
                              ROYALTY AND PAYMENTS

2.01 ROYALTY CALCULATION AND PAYMENTS

SpecTran shall make payments to LUCENT at the address specified in Section
4.03(b), as follows:

  (a)  In consideration for purchasing the rights to obtain the licenses granted
       herein, SpecTran shall pay to Lucent a total upfront fee totaling four
       million United States dollars (U.S. $ 4,000,000.00) to be paid as follows
       (A) the sum of seven hundred fifty thousand United States dollars (U.S. $
       750,000.00) within ninety (90) days after execution of this Agreement;
       (B) six semiannual payments each for the sum of five hundred thousand
       United States dollars (U.S. $500,000.00) within thirty (30) days of June
       30 and December 31 beginning with the first installment date of June 30,
       1999 and ending with the final $500,000.00 installment on December 31,
       2001, and (C) the sum of two hundred fifty thousand United States dollars
       (U.S. $250,000.00) within thirty days of June 30, 2002.

       The parties agree that the payment obligation of Section 2.01(a) of four
       million United Stated dollars (U.S. $ 4,000,000.00) including the
       semiannual payments shall survive any termination of this Agreement by
       SpecTran and are not refundable or creditable to any other payments
       required hereunder.

(b)    For the rights granted to SpecTran in each semi-annual period beginning
       in 2000, SpecTran shall make the following additional semi-annual royalty
       payments to LUCENT in United States dollars based upon a royalty that
       shall accrue in such semi-annual period and shall be payable on a
       semiannual basis within thirty days of June 30 and December 31 for the
       preceding semiannual period. In each instance in this Agreement,
       reference to SpecTran's total gross revenues includes SpecTran's and its
       RELATED COMPANIES' total gross revenues excluding sales to LUCENT and
       excluding packing costs, costs of insurance and transportation, and
       import, export, excise, sales and value added taxes and customs duties
       associated with such sales. SpecTran shall pay LUCENT the lesser of:

          (i) a sum calculated at a royalty rate of [REDACTED MATERIAL FILED
          SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED]. In
          addition to any other fees payable by SpecTran hereunder, SpecTran
          shall pay to LUCENT a royalty of [REDACTED MATERIAL FILED SEPARATELY
          WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED] in excess of the
          quantity limits specified in Section 1.04(c)(iv); or

          (ii) the combined royalty of [REDACTED MATERIAL FILED SEPARATELY WITH
          COMMISSION; CONFIDENTIAL TREATMENT GRANTED]

     In addition to any other fees payable by SpecTran hereunder, SpecTran shall
     pay to LUCENT an additional royalty of [REDACTED MATERIAL FILED SEPARATELY
     WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED] in excess of the
     quantity limits specified in Section 1.04(iv)(c).
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(c)  The parties agree that [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION;
     CONFIDENTIAL TREATMENT GRANTED].


(d)  Subject to the exclusions and limitations referred to in this Agreement,
     royalties payable hereunder are for all of LUCENT's PATENTS.

(e)  Overdue payments hereunder shall be subject to a late payment charge
     calculated at an annual rate of three percent (3%) over the prime rate or
     successive prime rates (as posted in New York City) during delinquency. If
     the amount of such late payment charge exceeds the maximum permitted by
     law, such charge shall be reduced to such maximum.

(f)  Notwithstanding any other provisions hereunder, royalty shall accrue and be
     payable only to the extent that enforcement of SpecTran's obligation to pay
     such royalty would not be prohibited by applicable law.

2.02 RECORDS AND ADJUSTMENTS

(a)  SpecTran shall keep full, clear and accurate records with respect to all
     LICENSED PRODUCTS and shall furnish any information which LUCENT may
     reasonably prescribe from time to time to enable LUCENT to ascertain the
     proper royalty due hereunder on account of products sold, leased and put
     into use by SpecTran or any of its RELATED COMPANIES. SpecTran shall retain
     such records with respect to each LICENSED PRODUCT for at least seven (7)
     years from the sale, lease or putting into use of such LICENSED PRODUCT.
     LUCENT shall have the right through its accredited auditors to make an
     examination, once annually, during normal business hours, of all records
     and accounts bearing upon the amount of royalty payable to it hereunder and
     will not use such information except to verify royalty payable. Prompt
     adjustment shall be made to compensate for any errors or omissions
     disclosed by such examination.

(b)  Independent of any such examination, LUCENT will credit to SpecTran the
     amount of any overpayment of royalties made in error which is identified
     and fully explained in a written notice to LUCENT delivered within twelve
     (12) months after the due date of the payment which included such alleged
     overpayment, provided that LUCENT is able to verify, to its own
     satisfaction, the existence and extent of the overpayment.

(c)  No refund, credit or other adjustment of royalty payments shall be made by
     LUCENT except as provided in this Section 2.02. Rights conferred by this
     Section 2.02 shall not be affected by any statement appearing on any check
     or other document, except to the extent that any such right is expressly
     waived or surrendered by a Party having such right and signing such
     statement.

2.03 REPORTS AND PAYMENTS

(a)  Within thirty (30) days after June 30 and December 31 of each year,
     SpecTran shall furnish to LUCENT at the address specified in Section 4.03
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     a statement certified by a responsible official of SpecTran showing, in a
     manner acceptable to LUCENT, the following disclosures with respect all
     licensed sales made by SpecTran and its RELATED COMPANIES in the preceding
     semiannual period for such calendar year and make all payments required
     hereunder if not specified as payable on other dates:

          (i) all LICENSED PRODUCTS which were sold, leased or put into use
          during the preceding semi-annual period for such calendar year;

          (ii) the FAIR MARKET VALUES of such LICENSED PRODUCTS; and

          (iii) the amount of royalty payable thereon.

    If no LICENSED PRODUCT has been so sold, leased or put into use, the
statement shall show that fact.

(b)    Within thirty (30) days of June 30 and December 31 of each calendar year,
       SpecTran shall pay in United States dollars to LUCENT at the address
       specified in Section 4.03 the royalties payable in accordance with such
       statement.

(c)    Overdue payments hereunder shall be subject to a late payment charge
       calculated at an annual rate of three percentage points (3%) over the
       prime rate or successive prime rates (as posted in New York City) during
       delinquency. If the amount of such charge exceeds the maximum permitted
       by law, such charge shall be reduced to such maximum.

(d)    When a company ceases to be a RELATED COMPANY of SpecTran, royalties
       which have accrued with respect to any products of such company, but
       which have not been paid, shall become payable with SpecTran's next
       scheduled royalty payment.


                                  ARTICLE III
                                  TERMINATION

3.01 BREACH OR ACQUISITION

(a)    In the event of a material breach of this Agreement by either Party, the
       other Party may, in addition to any other remedies that it may have, at
       any time terminate all licenses and rights granted by it hereunder by not
       less than two (2) months' written notice specifying such breach, unless
       within the period of such notice all breaches specified therein shall
       have been remedied.

(b)    In the event of a material breach of this Agreement by LUCENT or its
       SUBSIDIARIES, or of any loss or injury to the CORPORATION arising out of
       this Agreement, for which LUCENT or its SUBSIDIARIES is liable to
       SpecTran, LUCENT's and its SUBSIDIARIES' total cumulative liability to
       SpecTran for all such breaches, losses and injuries shall be the lesser
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       of (i) the actual value of the injury or loss to the CORPORATION or (ii)
       the total royalties paid to LUCENT.

(c)    The Parties agree that if SpecTran is acquired by an OPTICAL FIBER
       manufacturer, this Agreement may be immediately terminated by LUCENT.

(d)    If SpecTran is acquired by other than an OPTICAL FIBER manufacturer and
       continues operation as a separately identifiable business, then the
       licenses granted hereunder to SpecTran under licensed patents which have
       been first filed prior to the date of such acquisition may continue, but
       only (i) for the duration and term of licenses as specified in this
       Agreement; (ii) to the extent and for the time that SpecTran functions as
       a separately identifiable business, and (iii) for products and services
       of the kind provided by SpecTran prior to its acquisition and not to any
       products or services of any entity which acquires SpecTran.

3.02 VOLUNTARY TERMINATION

By written notice to the other Party, either Party may voluntarily terminate all
or a specified portion of the licenses and rights granted to it hereunder. Such
notice shall specify the effective date (not more than six (6) months prior to
the giving of said notice) of such termination and shall clearly specify any
affected patent, invention or product.

3.03 SURVIVAL

(a)    If a company ceases to be a RELATED COMPANY of a Party, licenses and
       rights granted hereunder with respect to patents of such company on
       inventions made prior to the date of such cessation, shall not be
       affected by such cessation.

(b)    Any termination of licenses and rights of a Party under the provisions of
       this Article III shall not affect such Party's licenses, rights and
       obligations with respect to any LICENSED PRODUCT made prior to such
       termination, and shall not affect the other Party's licenses and rights
       (and obligations related thereto) hereunder.


                                   ARTICLE IV
                            MISCELLANEOUS PROVISIONS

4.01 DISCLAIMER

NEITHER PARTY NOR ANY OF ITS SUBSIDIARIES MAKES ANY REPRESENTATIONS, EXTENDS ANY
WARRANTIES OF ANY KIND, ASSUMES ANY RESPONSIBILITY OR OBLIGATIONS WHATEVER, OR
CONFERS ANY RIGHT BY IMPLICATION, ESTOPPEL OR OTHERWISE, OTHER THAN THE
LICENSES, RIGHTS AND WARRANTIES HEREIN EXPRESSLY GRANTED.

4.02 NONASSIGNABILITY

(a)  The Parties hereto have entered into this Agreement in contemplation of
     personal performance, each by the other, and intend that the licenses and
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     rights granted hereunder to a Party not be extended to entities other than
     such Party's RELATED COMPANIES without the other Party's express written
     consent. All of LUCENT's right, title and interest in this Agreement and
     any licenses and rights granted to it hereunder may be assigned to any
     direct or indirect successor to the business of LUCENT pertaining to this
     Agreement, which successor shall thereafter be deemed substituted for
     LUCENT as the Party hereto, effective upon such assignment; but neither
     this Agreement nor any licenses or rights hereunder shall be otherwise
     assignable or transferable (in insolvency proceedings, by reason of a
     corporate merger, or otherwise) by either Party without the express written
     consent of the other Party.

(b)  Notwithstanding the foregoing, if any of the Parties divests all or a
     portion of its business and such divested business continues operation as a
     separately identifiable business, then the licenses granted hereunder to
     the divesting Party under licensed patents which have been first filed
     prior to the date of such divestiture may be sublicensed to such divested
     separate business, but only (i) for the duration and term of licenses as
     specified in this Agreement; (ii) to the extent and for the time the
     divested business functions as a separately identifiable business, and
     (iii) for products and services of the kind provided by the divested
     business prior to its divestiture and not to any products or services of
     any entity which acquires the divested business. This subsection shall
     apply regardless of whether the business is divested by a sale of assets or
     as a sale of a legal entity (e.g., sale of a SUBSIDIARY). If the Party
     divesting such business is required to make royalty payments or provide
     other compensation under this Agreement, it shall continue to be obligated
     to do so for itself and, if and to the extent a sublicense is granted, for
     the divested business. The sublicensing rights specified herein shall not
     apply to any business other than a RELATED COMPANY the acquisition of which
     by a party is subsequent to the effective date of this Agreement.

(c)  Notwithstanding any other provision herein:

          (i) SpecTran may not [REDACTED MATERIAL FILED SEPARATELY WITH
          COMMISSION; CONFIDENTIAL TREATMENT GRANTED]

          (ii) If LUCENT, in its sole discretion [REDACTED MATERIAL FILED
          SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED]

4.03 ADDRESSES

(a)    Any notice or other communication hereunder shall be sufficiently given
       to SpecTran when sent by certified mail (or an equivalent means that
       provides a return receipt) addressed to SpecTran at the above address or
       to LUCENT when sent by certified mail addressed to Contract
       Administrator, Intellectual Property Division, Lucent Technologies Inc.,
       Suite 105, 14645 Northwest 77th Avenue, Miami Lakes, Florida 33014,
       United States of America. Changes in such addresses may be specified by
       written notice.
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(b)    Payments by SpecTran shall be made to Lucent at Sun Trust, P.O. Box
       913021, Orlando, Florida, 32891-3021, United States of America.
       Alternatively, payments to Lucent may be made by bank wire transfers to
       LUCENT's account: Lucent Technologies Licensing, Account No.[REDACTED
       MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT
       GRANTED], at Chase Manhattan Bank, N.A., Four Chase Metrotech Center,
       Brooklyn, New York, 11245, United States of America. Changes in such
       address or account may be specified by written notice.

4.04 TAXES


SpecTran shall pay any tax, duty, levy, customs fee, or similar charge
("taxes"), including interest and penalties thereon, however designated, imposed
as a result of the operation or existence of this Agreement, including taxes
which SpecTran is required to withhold or deduct from payments to LUCENT, except
(i) net income taxes imposed upon LUCENT by any governmental entity within the
United States (the fifty (50) states and the District of Columbia), and (ii) net
income taxes imposed upon LUCENT by jurisdictions outside the United States
which are allowable as a credit against the United States Federal income tax of
LUCENT or any of its SUBSIDIARIES. In order for the exception in (ii) to be
effective, SpecTran must furnish to LUCENT evidence sufficient to satisfy the
United States taxing authorities that such taxes have been paid.

4.05 CHOICE OF LAW

The Parties are familiar with the principles of New York commercial law, and
agree that the patent laws of the United States or the patent laws of any other
country as may be appropriate, and in so far as not pre-empted by U.S. patent
law, the law of New York shall apply in any dispute arising with respect to this
Agreement.

4.06 INTEGRATION

This Agreement sets forth the entire Agreement and understanding between the
Parties as to the subject matter hereof and merges all prior discussions between
them. Neither of the Parties shall be bound by any warranties, understandings or
representations with respect to such subject matter other than as expressly
provided herein or in a writing signed with or subsequent to execution hereof by
an authorized representative of the Party to be bound thereby.

4.07 OUTSIDE THE UNITED STATES

(a)  There are countries in which the owner of an invention is entitled to
     compensation, damages or other monetary award for another's unlicensed
     manufacture, sale, lease, use or importation involving such invention prior
     to the date of issuance of a patent for such invention but on or after a
     certain earlier date, hereinafter referred to as the invention's
     "protection commencement date" (e.g., the date of publication of allowed
     claims or the date of publication or "laying open" of the filed patent
     application). In some instances, other conditions precedent must also be
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     fulfilled (e.g., knowledge or actual notification of the filed patent
     application). The Parties agree that (i) an invention which has a
     protection commencement date in any such country may be used in such
     country pursuant to the terms of this Agreement on and after any such date,
     and (ii) all such conditions precedent are deemed satisfied by this
     Agreement.

(b)    There may be countries in which a Party hereto may have, as a consequence
       of this Agreement, rights against infringers of the other Party's patents
       licensed hereunder. Each Party hereby waives any such right it may have
       by reason of any third Party's infringement or alleged infringement of
       any such patents.

(c)    SpecTran hereby agrees to register or cause to be registered, to the
       extent required by applicable law, and without expense to LUCENT or any
       of its RELATED COMPANIES, any agreements wherein sublicenses are granted
       by it under LUCENT's PATENTS. SpecTran hereby waives any and all claims
       or defenses, arising by virtue of the absence of such registration, that
       might otherwise limit or affect its obligations to LUCENT.

4.08 DISPUTE RESOLUTION

(a)    If a dispute arises out of or relates to this Agreement, or the breach,
       termination or validity thereof, the Parties agree to submit the dispute
       to a sole mediator selected by the Parties or, at any time at the option
       of a Party, to mediation by the American Arbitration Association ("AAA").
       If not thus resolved, it shall be referred to a sole arbitrator selected
       by the Parties within thirty (30) days of the mediation, or in the
       absence of such selection, to AAA arbitration which shall be governed by
       the United States Arbitration Act.

(b)    Any award made (i) shall be a bare award limited to a holding for or
       against a Party and affording such remedy as is deemed equitable, just
       and within the scope of the Agreement; (ii) shall be without findings as
       to issues (including but not limited to patent validity and/or
       infringement) or a statement of the reasoning on which the award rests;
       (iii) may in appropriate circumstances (other than patent disputes)
       include injunctive relief; (iv) shall be made within four (4) months of
       the appointment of the arbitrator; and (v) may be entered in any court.

(c)    The requirement for mediation and arbitration shall not be deemed a
       waiver of any right of termination under this Agreement and the
       arbitrator is not empowered to act or make any award other than based
       solely on the rights and obligations of the Parties prior to any such
       termination.

(d)    The arbitrator shall be knowledgeable in the legal and technical aspects
       of this Agreement and shall determine issues of arbitrability but may not
       limit, expand or otherwise modify the terms of the Agreement.
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(e)    The Agreement shall be interpreted in accordance with the patent laws of
       the United States or the patent laws of any other country as may be
       appropriate, and in so far as not pre-empted by U.S. patent law, the laws
       of the State of New York exclusive of its conflict of laws provisions and
       the place of mediation and arbitration shall be New York City.

(f)    Each Party shall bear its own expenses but those related to the
       compensation and expenses of the mediator and arbitrator shall be borne
       equally.

(g)    A request by a Party to a court for interim measures shall not be deemed
       a waiver of the obligation to mediate and arbitrate.

(h)    The arbitrator shall not have authority to award punitive or other
       damages in excess of compensatory damages and each Party irrevocably
       waives any claim thereto.

(i)    Except as required by law, the Parties, their representatives, other
       participants and the mediator and arbitrator shall hold the existence,
       content and result of mediation and arbitration in confidence.

4.09 RELEASES

(a)  Subject to Section 4.09(c) and for good and valuable consideration, LUCENT,
     for itself and for its present RELATED COMPANIES, hereby irrevocably
     releases SpecTran, its present RELATED COMPANIES and all customers
     (purchasers and users) of LICENSED PRODUCTS as of the effective date hereof
     to SpecTran, from all claims, demands and rights of action which LUCENT or
     any of its present RELATED COMPANIES may have on account of any
     infringement or alleged infringement of any patent issued in any country of
     the world by reason of the manufacture or any past or future use, lease,
     sale, offer for sale or importation of any of such products which, prior to
     the effective date hereof, were manufactured by or for, or sold or used or
     furnished or imported by SpecTran or any of its present RELATED COMPANIES.

(b)  Subject to Section 4.09(c), and for good and valuable consideration,
     SpecTran, for itself and for its present RELATED COMPANIES, hereby
     irrevocably releases LUCENT (for the purposes of this Section 4.09(b)
     "LUCENT" means Lucent Technologies Inc. as it presently exists and as it
     formerly existed as a part of AT&T Corp.), its present RELATED COMPANIES,
     and all customers (purchasers and users) of LICENSED PRODUCTS as of the
     effective date hereof to LUCENT, from all claims, demands and rights of
     action which SpecTran or any of its present RELATED COMPANIES may have on
     account of any infringement or alleged infringement of any patent issued in
     any country of the world by reason of the manufacture or any past or future
     use, lease, sale, offer for sale or importation of any of such products
     which, prior to the effective date hereof, were manufactured by or for, or
     used, furnished or imported by, LUCENT or any of its present RELATED
     COMPANIES.
   13
(c)    With respect to customers (purchasers and users) of a grantee, such
       releases shall not extend to any patent which is directed to (i) a
       combination of a product of the kind herein licensed as of the effective
       date hereof with any other product; (ii) a method or process which is
       other than the inherent use of a product of the kind herein licensed (as
       furnished to such customers); or (iii) a method or process involving the
       use of a product of the kind herein licensed as of the effective date
       hereof to manufacture (including associated testing) any other product.

4.10 COUNTERPARTS

This Patent License Agreement may be executed by the Parties in any number of
identical counterparts, all of which together shall constitute the final
agreement. The Parties further agree that this Patent License Agreement shall be
of no force or effect until the date of the last execution by any Party, and
that the executed counterparts may be exchanged by facsimile transmission.
   14
IN WITNESS WHEREOF, each of the Parties has caused this Agreement to be executed
in duplicate originals by its duly authorized representatives on the respective
dates entered below.


                           LUCENT TECHNOLOGIES INC.

                           By:      s/s M.R. Greene
                                ------------------------------------
                                    M. R. Greene
                                    Vice President - Intellectual Property

                           Date:    10-30-98
                                ------------------------------------




                           SpecTran CORPORATION

                           By:      s/s Charles B. Harrison
                                ------------------------------------

                           Date:    October 30, 1998
                                ------------------------------------


     THIS AGREEMENT DOES NOT BIND OR OBLIGATE EITHER PARTY IN ANY MANNER
     UNLESS DULY EXECUTED BY AUTHORIZED REPRESENTATIVES OF BOTH PARTIES.
   15
                              DEFINITIONS APPENDIX

CLASSIC TRUE WAVE FIBER means OPTICAL FIBER which is NON ZERO DISPERSION FIBER
having an [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL
TREATMENT REQUESTED PORTION FILED SEPARATELY - CONFIDENTIAL TREATMENT GRANTED].

FAIR MARKET VALUE means, with respect to any OPTICAL FIBER sold, leased or put
into use, the greater of (i) the selling price which a seller would realize from
an unaffiliated buyer in an arm's length sale of an identical product in the
same quantity and at the same time and place as such sale, lease or putting into
use; or (ii) the selling price actually obtained for such OPTICAL FIBER in the
form in which it is sold.

In determining "selling price" the following shall be excluded:

                      (a) packing costs;
                      (b) costs of insurance and transportation; and
                      (c) import, export, excise, sales and value added taxes
                          and customs duties.

LICENSED PRODUCT means, as to any grantee, any product (including any specified
combination of other products) listed for such grantee in Section 1.01 excluding
those products listed in Section 1.04.

LUCENT'S PATENTS means all patents (including utility models but excluding
design patents and design registrations) owned and controlled by LUCENT or its
wholly-owned SUBSIDIARIES (including patents which LUCENT and its RELATED
COMPANIES do not own but have a right to license),

     (1)  claiming:

          (i)  an OPTICAL FIBER

          (ii) a method of or an apparatus for making (including quality control
               and testing) an OPTICAL FIBER, or (iii) a material used in the
               manufacture of or forming a part of an OPTICAL FIBER; and

     (2)  issued prior to January 1, 1998 in any country of the world, and any
          patent issuing from an application claiming priority from any such
          issued patents (except as below) with respect to which and to the
          extent that LUCENT or its wholly-owned SUBSIDIARIES has a right, as of
          the date of execution of this Agreement, to grant the licenses granted
          herein; provided, however, the term means and includes applications
          resulting in patents claiming multimode OPTICAL FIBER filed prior to
          the Effective Date of this Agreement.

The term LUCENT's PATENTS shall exclude any and all patents and patent rights
excluded in Section 1.04, including but not limited to:

     (1)  [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL
          TREATMENT GRANTED];

     (2)  related to a method or means to introduce dispersion compensation into
          a
   16
          transmission system using one or more OPTICAL FIBERS, [REDACTED
          MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT
          GRANTED];

     (3)  related to a method or means for [REDACTED MATERIAL FILED SEPARATELY
          WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED]; and

     (4)  claiming [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION;
          CONFIDENTIAL TREATMENT GRANTED].



Subject to all of the restrictions, exclusions and limitations herein, the term
LUCENT's PATENTS includes but is not limited to OPTICAL FIBER patents listed in
Appendix A, their foreign counterparts and any reissues, reexaminations or
extensions thereof.

NON-PREMIUM OPTICAL FIBER means an OPTICAL FIBER other than PREMIUM OPTICAL
FIBER including but not limited to what is commonly known in the industry as:
conventional standard matched clad single mode fibers, multimode optical fibers,
conventional dispersion shifted fibers (but not including any form of non-zero
dispersion fiber), dispersion flattened fibers and polarization maintaining
fiber.

NON ZERO DISPERSION FIBER (NZDF) means an OPTICAL FIBER designed to [REDACTED
MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT GRANTED].

OPTICAL FIBER means optical transmission fiber drawn from an optical fiber
preform made by vapor phase methods, including but not limited to MCVD, OVD, and
VAD methods or combinations thereof, and/or in combination with rod-in-tube
overcladding methods. OPTICAL FIBER includes, but is not limited to, single mode
optical fiber, multimode optical fiber, dispersion shifted fiber (including but
not limited to NON-ZERO DISPERSION FIBER), and polarization maintaining fiber.

PREMIUM OPTICAL FIBER means those OPTICAL FIBERS commonly referred to in the
industry as [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL
TREATMENT GRANTED].

RELATED COMPANIES of a company are SUBSIDIARIES of the company and any other
company so designated as agreed to in writing by LUCENT and SpecTran.

SPECTRAN'S PATENTS means all patents (including utility models but excluding
design patents and design registrations) owned and controlled by SpecTran or its
wholly-owned SUBSIDIARIES (including patents which SpecTran and its RELATED
COMPANIES do not own but have a right to license),

     (1)  claiming:

          (i)  an OPTICAL FIBER

          (ii) a method of or an apparatus for making (including quality control
               and testing) an OPTICAL FIBER, or

          (iii) a material used in the manufacture of or forming a part of an
               OPTICAL FIBER; and
   17
               (2) issued prior to January 1, 1998 in any country of the world,
               and any patent issuing from an application claiming priority from
               any such issued patents with respect to which and to the extent
               that SpecTran or its wholly-owned SUBSIDIARIES has a right, as of
               the date of execution of this Agreement, to grant the licenses
               granted herein; provided, however, the term means and includes
               applications resulting in patents claiming multimode OPTICAL
               FIBER filed prior to October 1, 1998.

SUBSIDIARY of a company means a corporation or other legal entity (i) the
majority of whose shares or other securities entitled to vote for election of
directors (or other managing authority) is now or hereafter controlled by such
company either directly or indirectly; or (ii) which does not have outstanding
shares or securities but the majority of whose ownership interest representing
the right to manage such corporation or other legal entity is now or hereafter
owned and controlled by such company either directly or indirectly; but any such
corporation or other legal entity shall be deemed to be a SUBSIDIARY of such
company only as long as such control or ownership and control exists. The term
does not mean or include, without limitation, General Photonics, LLC.
   18
                                   APPENDIX A
                       SELECT LUCENT OPTICAL FIBER PATENTS

- -------------------------------------------------------------------------------
U.S. PATENT     AUTHOR     FILING DATE   ISSUE DATE
     #                                                                    TITLE
- -------------------------------------------------------------------------------


   [REDACTED MATERIAL FILED SEPARATELY WITH COMMISSION; CONFIDENTIAL TREATMENT
   GRANTED]