Optical soliton telecommunication system with dispersion-shifted

Optical source for communications system

Optical source with reduced relative intensity noise

Optical space communicating apparatus

Optical space communication

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus

Optical space communication apparatus sending main signals and a

Optical space switch device

Optical spectral multiplexer for inserting and extracting

Optical structure and an imaging system using the same

Optical submarine branching device

Optical submarine cable system