Optical equalization

Details Optical equalization Optical equalization

2006-11-07

2006-11-07

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

C385S015000, C385S027000, C385S122000, C398S158000

Reexamination Certificate

active

07133191

ABSTRACT:
A device and method for processing a signal e.g. equalizing a signal, is disclosed. Such processing involves dividing a signal into two portions that each traverses a wavepath and then are combined. The respective wavepaths impose a non-linear frequency-versus-phase dependency on a signal portion. The frequency-versus-phase dependencies that characterize the respective wavepaths are similar in shape but inverted from each other. A processed signal has significantly improved signal-to-noise ratio.

REFERENCES:
patent: 6785446 (2004-08-01), Chandrasekhar et al.
patent: 6804434 (2004-10-01), Chandrasekhar et al.
patent: 2005/0058459 (2005-03-01), Chandrasekhar et al.
Kaminow, I. and Koch, T. (Eds.). Optical Fiber Telecommunications IIIB, 1997, Academic, NY, Ch. 8 pp. 345-351, Ch. 9 pp. 388-404.

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