Photonic switching device

Planar lightwave circuit based tunable 3 port filter

PMD characterization across multiple optical channels of an...

PMDC feedback signal for alternate polarization DPSK system

Polarization envelope modulation for signaling and labeling...

Polarization mode dispersion compensation and polarization...

Polarization mode dispersion compensation apparatus using a...

Polarization mode dispersion compensator and compensation...

Polarization monitoring in polarization division...

Polarization scrambler and optical network using the same

Polarization scrambler and optical network using the same

Polarization-division multiplexing based on power encoding...

Polarization-independent, configurable optical multiplexer

PON system and optical network unit

PON system and optical network unit

Power and wavelength management for mixed-rate optical data...

Power balanced optical add multiplexer and power balancing...

Power balanced optical add/drop multiplexer and power...

Power controlling network element

Power pre-emphasis for WDM transmission systems