Coherent optical receiver

Details Coherent optical receiver Coherent optical receiver

2006-08-01

2006-08-01

Leung, Christina Y. (Department: 2633)

Optical communications

Receiver

C398S204000

Reexamination Certificate

active

07085501

ABSTRACT:
A coherent optical intradyne receiver is described which comprises an optical image reject mixer capable of dividing, mixing and recombining signals from three inputs so as to produce an inphase and a quadrature channel. On each of the channels a same set of image products is cancelled and from which channels, phase modulated signals can be recovered.

REFERENCES:
patent: 5237287 (1993-08-01), Bar-David
Nicholson, G. et al. “Performance Analysis of Coherent Optical Phase-Diversity Receivers with DPSK Modulation,” Journal of Lightwave Technology, vol. 7, No. 2, Feb. 1989, pp. 393-399.
Yamashita, “Two-Branch Double-Stage Phase-Diversity (DSPD) Coherent Receiver Using a 3×3 Fiber Coupler”, IEEE PHotonics Technology Letters, vol. 6, No. 11, Nov. 1994, pp. 1385-1388.
Derr, “Coherent Optical QPSK Intradyne System: Concept and Digital Receiver Realization”, Journal of Lightwave Technology, vol. 10, No. 9, Sep. 1992, pp. 1290-1296.

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