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Adjustable multi-channel fibre bandpass filters based on uniform fibre Bragg gratings

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4 Author(s)
Shenping Li ; Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong ; K. T. Chan ; Jing Meng ; Wen Zhou

An adjustable multichannel in-fibre bandpass filter is demonstrated by mechanically straining a uniform fibre grating to form a three-mirror Fabry-Perot cavity. A channel filter with a ~3.0 nm stop and a passband of 0.009 nm is achieved. Two, three, and four-channel passband filters with a free spectral range of ~0.25 nm are also demonstrated

Published in:

Electronics Letters  (Volume:34 ,  Issue: 15 )