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Proceedings Paper

Design of flat-top comb filter based on photonic crystal fiber Sagnac loop
Author(s): Xude Wang; Suwen Li
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Paper Abstract

A novel all-fiber flat-top comb filter is proposed based on Sagnac loop interferometer of photonic crystal fiber (PCF). The transmission function of the proposed Sagnac loop filter is expressed theoretically by Jones transmit-matrix. The influences of birefringence of PCF, the lengths of two sections of PCFs and the rotatable angle of polarization controllers on its output spectra are numerically studied. On the basis of theoretical analysis, a wavelength switchable comb filter with flat-top spectral response is realized. This kind of filter can be expected to be used widely in DWDM systems in the future.

Paper Details

Date Published: 29 November 2011
PDF: 7 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83071M (29 November 2011); doi: 10.1117/12.902736
Show Author Affiliations
Xude Wang, Huaibei Normal Univ. (China)
Suwen Li, Huaibei Normal Univ. (China)


Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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