Optical filter doped with rare earth elements and used with opti

Optical fixed attenuator and process and apparatus for...

Optical loop-back attenuator

Optical module with multiple optical sources

Optical receiver with high dynamic range

Optical subassembly with attenuating plug

Optical switching and attenuation systems and methods therefor

Optical transmission device for controlling optical level of...

Optical transmission module

Optical variable attenuator

Optical variable attenuator and optical module

Optical variable attenuator assembly

Optical waveguide devices and methods of fabricating the same

Optical waveguide electrically controlled variable attenuator

Overlapping fusion attenuator