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FSR-tunable fabry-Pe´rot filter with superimposed chirped fiber Bragg gratings

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4 Author(s)
Xinyong Dong ; Network Technol. Res. Centre, Nanyang Technol. Univ., Singapore, Singapore ; Shum, P. ; Chan, C.C. ; Xiufeng Yang

Tuning of the free-spectral range (FSR) of an optical fiber Fabry-Pe´rot filter (FPF), which is formed by a superimposed chirped fiber Bragg grating, is realized by using a cantilever beam-based chirp tuning method. The tuning principle is described and, as an example, an FPF with a continuously tunable FSR of 0.3-0.6 nm is demonstrated.

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 1 )