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Proceedings Paper

Synthesis of optical filter composed of cascaded sagnac circuits
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Paper Abstract

We propose using a novel multifunction optical filter with cascaded sagnac circuits for future smart wavelength division multiplexed network system applications. The coupling coefficients of the couplers in cascaded sagnac circuits are apodized according to the Gaussian function. By properly adjusting only two parameters, the coupling coefficients are convex-apodized or concave-apodized. For the former, we can obtain passband filter and improve response functions such as flatness and steepness; for the latter, it is possible to gain comb-like transmitted responses.

Paper Details

Date Published: 30 April 2004
PDF: 5 pages
Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); doi: 10.1117/12.521775
Show Author Affiliations
Guo-Yong Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Ronghui Qu, Shanghai Institute of Optics and Fine Mechanics (China)
Zujie Fang, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 5279:
Optical Fibers and Passive Components
Steven Shen; Shuisheng Jian; Katsunari Okamoto; Kenneth L. Walker, Editor(s)

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