Optical switches and routers and optical filters
Optical switching device
Optical system and method
Optical system module
Optical system with optical waveguides
Optical tapped time delay modules and arrays
Optical tapping filters employing long period gratings
Optical transmission line
Optical transmission system using an optical phase...
Optical transmitter module and wavelength division...
Optical wave guide path recording medium and optical reproducing
Optical waveguide (TE,TM) mode converter
Optical waveguide crossings
Optical waveguide evanescent ribbon coupler
Optical waveguide filter using multi-mode interference
Optical waveguide member and optical module
Optical waveguide mode coupling using mechanical wave interferen
Optical waveguide multimode to single mode transformer
Optical wavelength converter
Optical wavelength filter