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    As filed with the Securities and Exchange Commission on October 18, 2000

                                                  Registration No. 333-47898

                       SECURITIES AND EXCHANGE COMMISSION

                                    Form S-8
                         Post-Effective Amendment No. 1

                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

                            MRV COMMUNICATIONS, INC.
             (Exact Name of Registrant as Specified in Its Charter)

          Delaware                     3577/3674                 06-1340090
(State or Other Jurisdiction  (Primary Standard Industrial    (I.R.S. Employer
     of Incorporation          Classification Code Number)   Identification No.)
     or Organization)

                          20415 Nordhoff Street
                          Chatsworth, California 91311
                          (818) 773-0900
                          (818) 773-0906 (Fax)
                    (Address of Principal Executive Offices)

        2000 MRV COMMUNICATIONS, INC. STOCK OPTION PLAN FOR EMPLOYEES OF
                         OPTRONICS INTERNATIONAL CORP.
                            (Full Title of the Plan)

                          Noam Lotan
                          President and Chief Executive Officer
                          20415 Nordhoff Street
                          Chatsworth, California 91311
                          (818) 773-0900
                          (818) 773-0906 (Fax)
(Name, Address, and Telephone Number, Including Area Code, of Agent for Service)

                                   Copies to:
                          Mark A. Klein, Esq.
                          Kirkpatrick & Lockhart LLP
                          9100 Wilshire Boulevard, 8-East
                          Beverly Hills, CA 90212-3480
                          Telephone: (310) 273-1870
                          Facsimile: (310) 274-8357

        If any of the securities being registered on this Form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, check the following box. [x]

                               CALCULATION OF REGISTRATION FEE


- -----------------------------------------------------------------------------------------------------------------
                                                                Proposed          Proposed
                                                                 Maximum          Maximum
                                                                Offering         Aggregate         Amount of
 Title of Securities to be Registered      Amount to be         Price per         Offering        Registration
                                            Registered          Share(1)          Price(1)            Fee
- -----------------------------------------------------------------------------------------------------------------
                                                                                    
Common Stock, $00017 par value            800,000 shares         $3.00          $4,800,000          $633.60(2)
- -----------------------------------------------------------------------------------------------------------------


(1) Estimated solely for the purpose of computing the amount of the registration
    fee pursuant to Rule 457(h)(1).

(2) The registration fee was paid on October 13, 2000.


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                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS


        The documents containing information specified in this Part I are being
separately provided to the Registrant's employees, officers, directors and
consultants as specified by Rule 428(b)(1).


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                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.

        The documents listed in paragraphs (a) through (c) below are hereby
incorporated by reference in this Registration Statement. All documents
subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934 (the "Exchange Act"), prior to the
filing of a post-effective amendment which indicates that all securities offered
herein have been sold or which deregisters all securities then remaining unsold,
shall be deemed to be incorporated by reference in this Registration Statement
and to be a part hereto from the date of filing of such documents.

        (a)    Registrant's Annual Report on Form 10-K for the year ended
               December 31, 1999 filed with the SEC on March 31, 2000 as amended
               by its Form 10-K/A filed with the SEC on July 19, 2000;

        (b)    Registrant's Quarterly Report for the quarter ended March 31,
               2000 filed with the SEC on May 15, 2000, as amended by its Form
               10-Q/A filed with SEC on July 19, 2000 and Registrant's Quarterly
               Report on Form 10-Q for the quarter ended June 30, 2000 filed
               with the SEC on August 14, 2000 on Form 10-Q for the quarter
               ended June 30,2000 filed with the SEC on August 14, 2000;

        (c)    Registrant's Current Reports on Form 8-K filed with the SEC on
               May 3, 2000, May 9, 2000 (as amended by its Form 8-K/A filed with
               the SEC on July 7, 2000), July 27, 2000 (as amended by its Form
               8-K/A filed with the SEC on September 22, 2000 and by its Form
               8-K/A filed with the SEC on October 5, 2000) and August 4, 2000.;


        (d)    The description of the Common Stock contained in Registrant's
               Registration Statement on Form 8-A filed with the Commission on
               June 8, 1992, as amended by its Form 8-A/A filed with the
               Commission on February 24, 1994, including any amendment or
               report filed for the purpose of updating such description.

ITEM 4. DESCRIPTION OF SECURITIES.

        Not applicable.

ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL.

        Not applicable.

ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

        Section 145 of the Delaware General Corporation Law allows for the
indemnification of officers, directors, and other corporate agents in terms
sufficiently broad to indemnify such persons under certain circumstances for
liabilities (including reimbursement for expenses incurred) arising under the
Securities Act of 1933, as amended (the "Act"). Article 8 of the Registrant's
Certificate of Incorporation and Article IX of the Registrant's Bylaws provide
for indemnification of the Registrant's directors, officers, employees, and
other agents to the extent and under the circumstances permitted by the Delaware
General Corporation Law. The Registrant has also entered into agreements with
its directors and executive officers that will require the Registrant, among
other things, to indemnify them against certain liabilities that may arise by
reason of their status or service as directors to the fullest extent not
prohibited by law.

ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED.

        Not applicable.


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ITEM 8. EXHIBITS.

Exhibit
Numbers
- -------
4.1*        2000 MRV Communications, Inc. Stock Option Plan for Employees of
            Optronics International Corp.

4.2*        Form of Stock Option Agreement for the 2000 MRV Communications, Inc.
            Stock Option Plan for Employees of Optronics International Corp.

5*          Opinion of Kirkpatrick & Lockhart LLP as to the validity of the
            securities being registered.

23.1*       Consent of Arthur Andersen LLP, Los Angeles.

23.2        Consent of Arthur Andersen LLP, San Diego.

23.3*       Consent of T N Soong & Co.

23.4*       Consent of Kirkpatrick & Lockhart LLP (contained in Exhibit 5).

- ----------
* Previously filed.

ITEM 9. UNDERTAKINGS.

        The undersigned Registrant hereby undertakes:

                (1) To file, during any period in which offers or sales are
being made, a post-effective amendment to this Registration Statement to include
any material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement.

                (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

                (3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

        The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's Annual Report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

        Insofar as indemnification by the Registrant for liabilities arising
under the Securities Act of 1933 may be permitted to directors, officers and
controlling persons of the Registrant pursuant to the provisions referenced in
Item 6 of this Registration Statement or otherwise, the Registrant has been
advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act and
is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered hereunder, the Registrant will, unless in the opinion of its counsel
the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the final adjudication of such issue.


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                                   SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Amendment
No. 1 to the Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Chatsworth, State of
California, on this 17th day of October, 2000.


                                            MRV COMMUNICATIONS, INC.



                                            By: /s/ NOAM LOTAN
                                               ---------------------------------
                                               Noam Lotan, President and
                                               Chief Executive Officer




Names                               Title                                  Date
- -----                               -----                                  ----
                                                                     
   /s/ NOAM LOTAN                   President, Chief Executive Officer
- --------------------------------    (Principal Executive Officer), and a   October 17, 2000
       Noam Lotan                   Director

          *                         Chairman of the Board, Chief           October 17, 2000
- --------------------------------    Technical Officer, Secretary, and a
       Shlomo Margalit              Director

          *                         Vice President of Finance  and         October 17, 2000
- --------------------------------    Administration, Chief Financial
       Edmund Glazer                Officer (Principal Financial
                                    and Accounting Officer)

          *                         Director                               October 17, 2000
- --------------------------------
       Igal Shidlovsk

          *                         Director                               October 17, 2000
- --------------------------------
       Guenter Jaensch

          *                         Director                               October 17, 2000
- --------------------------------
       Daniel Tsui

          *                         Director                               October 17, 2000
- --------------------------------
       Baruch Fischer



- -------------
*By /s/ NOAM LOTAN
    -------------------------
       Noam Lotan                   Attorney-in-Fact




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