Multi-channel DPSK receiver

Details Multi-channel DPSK receiver Multi-channel DPSK receiver

2007-06-19

2007-06-19

Connelly-Cushwa, Michelle (Department: 2874)

Optical: systems and elements

Optical demodulator

C398S002000, C398S079000, C398S208000, C398S209000, C398S210000, C398S211000

Reexamination Certificate

active

11022344

ABSTRACT:
An optical, multi-channel, Differential Phase Shift Keying (DPSK) receiver demodulates multiple Wavelength Division Multiplexed (WDM) channels using a single interferometer. This distributes expense of the interferometer over all channels of an optical signal, allowing for deployment of cost-effective, scalable, wideband, WDM DPSK systems. For example, for an 80 channel WDM link, the receiver uses a single interferometer instead of eighty interferometers and associated stabilization hardware, dramatically reducing size, weight, power, and cost. The receiver is architecturally compatible with existing interferometer technologies so previous development and qualification efforts can be leveraged. This allows for expedited technology insertion into existing optical communications networks, including terrestrial and space-based optical networks.

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