QuickLinks -- Click here to rapidly navigate through this document
Exhibit 21.1
JDS Uniphase Corporation
List of Legal Entities
as of July 2, 2011
| | Name of Entity | State or Other Jurisdiction of Incorporation or Organization | ||
|---|---|---|---|---|
| DOMESTIC | ||||
| 1 | Acterna LLC | Delaware | ||
| 2 | Acterna WG International Holdings LLC | Delaware | ||
| 3 | Advanced Digital Optics, Inc. | California | ||
| 4 | Circadiant Systems, Inc. | Delaware | ||
| 5 | da Vinci Systems LLC | Delaware | ||
| 6 | E20 Communications Inc. | Delaware | ||
| 7 | JDS Uniphase Asia Holdings, Inc. | Delaware | ||
| 8 | JDSU Acterna Holdings LLC | Delaware | ||
| 9 | JDS Uniphase Corporation | Delaware | ||
| 10 | JDSU Communications Corporation | Nevada | ||
| 11 | JDSU Label LLC | California | ||
| 12 | JDSU Norwood LLC | Delaware | ||
| 13 | JDSU Optical Corporation | Massachusettes | ||
| 14 | Lightwave Electronics Corporation | California | ||
| 15 | OPKOR, Inc. | New York | ||
| 16 | Optical Coating Laboratory, LLC | Delaware | ||
| 17 | Photonic Power Systems, Inc. | California | ||
| 18 | Ramar Corporation | Massachusettes | ||
| 19 | SDL Optics, Inc. | Delaware | ||
| 20 | SDL PIRI, Inc. | Delaware | ||
| 21 | Test-Um, Inc. | California | ||
| 22 | TTC Federal Systems, Inc. | Delaware | ||
| 23 | TTC International Holdings Inc. | Delaware | ||
| 24 | Uniphase FSC | California | ||
| INTERNATIONAL | ||||
| 25 | Acterna France SAS | France | ||
| 26 | Acterna Investments Ltd. | Guernsey | ||
| 27 | Agility Communications Europe Limited | United Kingdom | ||
| 28 | Casabyte Limited | United Kingdom | ||
| 29 | da Vinci Technologies Pte Ltd. | Singapore | ||
| 30 | Dynatech Hong Kong Limited | Hong Kong | ||
| 31 | Flex Co., Ltd. | Beijing | ||
| 32 | JDS Fitel (Barbados) Inc. | Barbados | ||
| 33 | JDS Uniphase (Israel) Limited | Israel | ||
| 34 | JDS Uniphase KK | Japan | ||
| 35 | JDS Uniphase Asia Ltd. | Hong Kong | ||
| 36 | JDS Uniphase Canada Ltd | Canada | ||
| 37 | JDSU Communication Technology (Shenzhen) Co. Ltd | China | ||
| 38 | JDS Uniphase France, S.A.S. | France | ||
| 39 | JDS Uniphase Inc. | Canada | ||
| 40 | JDS Uniphase Nova Scotia Company | Nova Scotia | ||
| 41 | JDS Uniphase Singapore Pte Limited | Singapore | ||
| 42 | JDSU (Beijing) Ltd | Beijing | ||
| 43 | JDSU (Greater China) Ltd | Hong Kong |
| | Name of Entity | State or Other Jurisdiction of Incorporation or Organization | ||
|---|---|---|---|---|
| INTERNATIONAL (continued) | ||||
| 44 | JDSU (Hong Kong) Ltd. | Hong Kong | ||
| 45 | JDSU AOT (Suzhou) Ltd | China | ||
| 46 | JDSU Australia Pty Ltd. | Australia | ||
| 47 | JDSU Austria GmbH | Austria | ||
| 48 | JDSU Benelux B.V. | Netherlands | ||
| 49 | JDSU de Mexico S.A. de C.V. | Mexico | ||
| 50 | JDSU Deutschland GmbH | Germany | ||
| 51 | JDSU Do Brasil Ltda. & Cia | Brazil | ||
| 52 | JDSU Haberlesme Test ve Ölçüm Teknolojileri Tic. Ltd. Sti. | Turkey | ||
| 53 | JDSU Holdings GmbH | Germany | ||
| 54 | JDSU India Pvt. Ltd. | India | ||
| 55 | JDSU International GmbH | Germany | ||
| 56 | JDSU Italia s.r.l. | Italy | ||
| 57 | JDSU Korea Ltd | Korea | ||
| 58 | JDSU Malaysia Sdn Bhd | Malaysia | ||
| 59 | JDSU Nordic AB | Sweden | ||
| 60 | JDSU Polska Sp.z.o.o. | Poland | ||
| 61 | JDSU Schweiz AG | Switzerland | ||
| 62 | JDSU Singapore Pte Ltd | Singapore | ||
| 63 | JDSU Spain S.A. | Spain | ||
| 64 | JDSU T&M Japan KK | Japan | ||
| 65 | JDSU T&M Singapore Pte Ltd | Singapore | ||
| 66 | JDSU UK Ltd. | United Kingdom | ||
| 67 | JDSU World Holdings GmbH & Co. KG | Germany | ||
| 68 | TTC Asia Pacific Ltd. | Hong Kong |
JDS Uniphase Corporation List of Legal Entities as of July 2, 2011