Optical add/drop wavelength switch

Optical atm self-routing switching system with reduced...

Optical backplane

Optical beam switching device and telephone exchange...

Optical bypass switch

Optical channel cross connect for telecommunication systems...

Optical circuit for obtaining a monitor signal

Optical communication systems including network management...

Optical communications system

Optical cross-connect restoration technique

Optical cross-connecting device

Optical cross-connector containing a multi-stage clos...

Optical crossbar switch

Optical crosspoint switch having mode-conversion facilities

Optical device for processing a sequence of bits

Optical fiber cable distribution frame

Optical fiber connector housing

Optical fiber cross connection apparatus and method

Optical fiber distribution frame with fiber testing

Optical fiber distribution frame with pivoting connector panels