Littrow grating based OADM

Details Littrow grating based OADM Littrow grating based OADM

2007-04-10

2007-04-10

Vanderpuye, Kenneth (Department: 2613)

Optical communications

Multiplex

Optical switching

C398S043000, C398S048000, C385S018000

Reexamination Certificate

active

10262675

ABSTRACT:
A multi-channel optical switching system particularly usable as a programmable optical add/drop multiplexer in a multi-wavelength communication system. The switching system uses a grating operating at Littrow that separates a multi-channel optical signal into a plurality of optical channels, and combines a plurality of optical channels into a multi-channel optical signal. The system also uses a plurality of optical ports optically coupled to the grating and a selecting device to select which optical channel is directed to which of the optical ports.

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