Integrated optical multiplexer and demultiplexer

Details Integrated optical multiplexer and demultiplexer Integrated optical multiplexer and demultiplexer

2007-05-15

2007-05-15

Ben, Loha (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

C359S629000, C359S634000, C359S246000, C359S490020, C359S490020, C398S049000

Reexamination Certificate

active

11051512

ABSTRACT:
Optical multiplexers and demultiplexers are provided. In one implementation an apparatus is provided. The apparatus includes a first laser diode pair, a second laser diode pair, a polarization rotator coupled between the first and the second laser diode pairs, and an output port. The first and second laser diode pairs include a first laser diode, a polarization beam splitter, a first quarter waveplate, a filter; a second quarter waveplate, and a second laser diode. The first and second laser diode pairs are coupled to the polarization rotator at the polarization beam splitter of each laser diode pair. In one implementation the apparatus is operable to multiplex distinct light signals emitted from the first and second laser diodes. In another implementation, an apparatus is provided that is operable to demultiplex an input light beam having a plurality of distinct channels.

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