Exhibit 21.1

JDS UNIPHASE CORPORATION

WHOLLY-OWNED SUBSIDIARIES

Name of Entity

   State or Other
Jurisdiction of
Incorporation or
Organization
      

DOMESTIC

  

Acterna Inc.

   Delaware

Acterna LLC

   Delaware

Acterna WG International Holdings LLC

   Delaware

Advanced Digital Optics, Inc.

   California

Agility Communications, Inc.

   Delaware

da Vinci Systems LLC

   Delaware

E20 Communications Inc.

   Delaware

ExoGenesis Biomedical Technology

   Delaware

JDS Uniphase Asia Holdings, Inc.

   Delaware

JDS Uniphase Corporation

   Delaware

JDSU Communications Corporation

   Nevada

JDSU Label LLC

   California

JDSU Norwood LLC

   Delaware

JDSU Optical Corporation

   Massachusetts

Lightwave Electronics Corporation

   California

OPKOR, Inc.

   New York

Optical Coating Laboratory, Inc.

   Delaware

Photonic Power Systems, Inc.

   California

Picolight Incorporated

   Delaware

Ramar Corporation

   Massachusetts

SDL Optics, Inc.

   Delaware

SDL PIRI, Inc.

   Delaware

Test-Um, Inc.

   California

TTC Federal Systems, Inc.

   Delaware

TTC International Holdings Inc.

   Delaware

Uniphase FSC

   California

INTERNATIONAL

  

Acterna Asia Pacific Pty Ltd.

   Australia

Acterna France SAS

   France

Acterna Hong Kong Ltd.

   Hong Kong

Acterna India Pvt. Ltd.

   India

Acterna Investments Ltd.

   Guernsey

Acterna Japan K.K.

   Japan

Acterna Korea Ltd.

   Korea

Acterna Malaysia Sdn Bhd

   Malaysia

Acterna OOO

   Russian Federation

Acterna Singapore Pte.

   Singapore

Agility Communications Europe Limited

   United Kingdom

Casabyte Limited

   United Kingdom

Celetra Holding Company

   Denmark

da Vinci Technologies Pte Ltd.

   Singapore

Dynatech Hong Kong Limited

   Hong Kong

Flex Co., Ltd.

   Beijing

Innocor Ltd.

   Canada

JDS Fitel (Barbados) Inc.

   Barbados

JDS Uniphase (Israel) Limited

   Israel

JDS Uniphase (Shenzhen) Limited

   China

JDS Uniphase Asia K.K.

   Japan

JDS Uniphase Asia Ltd.

   HongKong

JDS Uniphase Canada Ltd

   Canada

JDS Uniphase France, S.A.S.

   France

JDS Uniphase GmbH

   Germany

JDS Uniphase Holdings Limited

   United Kingdom

JDS Uniphase Inc.

   Canada

JDS Uniphase Italia srl

   Italy

JDS Uniphase Netherlands B.V.

   Netherlands

JDS Uniphase Nova Scotia Company

   Nova Scotia

JDS Uniphase Photonics GmbH

   Germany

JDS Uniphase Singapore Pte Limited

   Singapore

JDS Uniphase Technology Limited

   Cayman

JDSU Austria GmbH

   Austria

JDSU Benelux B.V.

   Netherlands

JDSU de Mexico S.A. de C.V.

   Mexico

JDSU Deutschland GmbH

   Germany

JDSU Do Brasil Ltda.

   Brazil

JDSU Holdings GmbH

   Germany

JDSU International GmbH

   Germany

JDSU Italia s.r.l.

   Italy

JDSU Nordic AB

   Sweden

JDSU Polska Sp.z.o.o.

   Poland

JDSU Schweiz AG

   Switzerland

JDSU Singapore Pte Ltd

   Singapore

JDSU Spain S.A.

   Spain

JDSU UK Ltd.

   United Kingdom

JDSU World Holdings GmbH & Co. KG

   Germany

Lightwave Electronics GmbH

   Germany

TTC Asia Pacific Ltd.

   Hong Kong

Wandel & Goltermann Investments Pty Ltd

   Australia