Method, device, and system for regenerating optical signal

Details Method, device, and system for regenerating optical signal Method, device, and system for regenerating optical signal

2006-05-02

2006-05-02

Phan, Hanh (Department: 2638)

Optical communications

Transmitter and receiver system

Including compensation

C398S140000, C398S141000, C398S147000, C398S146000, C398S148000, C398S173000, C398S175000, C398S179000, C398S079000, C398S080000, C398S081000, C398S097000, C385S024000, C385S037000, C385S027000, C385S001000, C385S038000, C385S122000, C385S123000

Reexamination Certificate

active

07039324

ABSTRACT:
The present invention relates to a method for regenerating an optical signal suitable for WDM (wavelength division multiplexing). In this method, an optical signal is supplied to an optical waveguide structure (e.g., optical fiber) for providing a nonlinear effect. As a result, the optical signal undergoes chirp induced by the nonlinear effect. Then, an output optical signal output from the optical waveguide structure is supplied to an optical filter to thereby remove a small-chirp component from the output optical signal. By removing the small-chirp component from the output optical signal in the form of pulse, intensity fluctuations or accumulated noise especially at a top portion and/or a low-power portion of the pulse can be removed. Accordingly, the optical signal can be regenerated independently of the bit rate, pulse shape, etc. of the optical signal.

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European Search Report mailed Oct. 13, 2005.

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