Optical wavelength multiplexing and dividing device

Optical wavelength routing circuits

Optical wavelength routing device

Optical wavelength-multiplexing technique

Optical WDM coupling systems

Optical-filter array, optical transmitter and optical transmissi

Optical-transmission system having a split-gain amplifier...

Opto-electronic correlator including a spiral light waveguide

Parallel multiwavelength optical subassembly

Passband flattening of a phasar

Passive optical network arrangement

Passive optical network system based on a wavelength...

Passive optical network with analog distribution

Passively aligned holographic WDM

Path monitoring in optical communication systems

PD/LD module and PD module

PDM-WDM for fiberoptic communication networks

Peak limiter for suppressing undesirable energy in a return path

Performance compensated Tx/Rx optical devices

Periodic arrayed waveguide grating multiplexer/demultiplexer