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Proceedings Paper

Soliton WDM system using channel-isolating notch filters
Author(s): Pak Lim Chu; Boris A. Malomed; Gang-Ding Peng
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Paper Abstract

We propose a WDM system of sech or Gaussian type of optical pulses using a set of fixed- or sliding-frequency notch filters for channel-channel isolation. We have first demonstrate that a soliton trapped in a channel between two notches is very robust. We have also predicted optimum ratios between the channel separation and the soliton's spectral width for both the sech and Gaussian pulses. We find that the Gaussian pulses admit approximately 70% more channels than sech pulses for the same bandwidth. We investigated suppression of effects of interchannel collisions. We demonstrate that the effects can be largely eliminated by notch filters, while requiring an additional gain approximately 100%, and only approximately 5%, respectively for the sech and Gaussian pulses, of the basic gain for compensating the fiber loss.

Paper Details

Date Published: 26 November 1999
PDF: 8 pages
Proc. SPIE 3847, Optical Devices for Fiber Communication, (26 November 1999); doi: 10.1117/12.371248
Show Author Affiliations
Pak Lim Chu, Univ. of New South Wales (Hong Kong)
Boris A. Malomed, Tel Aviv Univ. (Israel)
Gang-Ding Peng, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 3847:
Optical Devices for Fiber Communication
Michel J. F. Digonnet, Editor(s)

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