Optical network unit of ethernet passive optical network and...
Optical output power automatic attenuation circuit for...
Optical path cross-connect and optical wavelength...
Optical performance monitor using co-located switchable...
Optical performance monitoring apparatus for a WDM optical...
Optical performance monitoring device
Optical phase modulator with monitoring structure
Optical polarization division multiplexing in optical...
Optical power management in an optical network
Optical power measurement apparatus and optical power...
Optical power transient monitor
Optical pulse characterization using phase modulation
Optical receiver decision threshold tuning apparatus and method
Optical sampling using intermediate second harmonic...
Optical sender, terminal device, and optical communication...
Optical signal judging system and optical signal judging method
Optical signal monitoring system and optical signal...
Optical signal quality monitoring apparatus and method
Optical signal quality selection system
Optical signal quality supervisory device