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Multiplication of a Multichannel Notch Filter Based on a Phase-Shifted Phase-Only Sampled Fiber Bragg Grating

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3 Author(s)
Ming Li ; Dept. of Electr. & Electron. Eng., Shizuoka Univ., Hamamatsu, Japan ; Fujii, T. ; Hongpu Li

By utilizing the multiple phase-shift and the sampling techniques, we demonstrate, for the first time, a novel multichannel notch filter with a multipliable channel count. Three kinds of notch filters with channel counts of 51, 102, and 153 are obtained by thermally inducing one, two, and three pi phase-shifts into a 51-channel phase-only sampled fiber Bragg grating, respectively. The proposed technique provides the potential applications to the multiwavelength fiber laser, the multichannel all-optical logic devices, and an optical code-division multiple access system.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 13 )