Optical transmitting apparatus and optical repeating apparatus
Optical transmitting apparatus having variable optical...
Optical transmitting apparatus having variable optical...
Optical waveguide amplifier
Optical waveguide amplifier optical service channel accessor...
Optical-fiber amplifier
Optical-fiber amplifier having high-saturation output
Optical-level control method, optical-level control...
Optically amplified gain control circuit and optically...
Optically amplifying device with gain equalizing function
Optically amplifying transmission system
Output power enhancement in optical fiber lasers