Novel optical filters based on tunable chirped-fiber Bragg gratings

Xinyong Dong; P. Shum; Mok Fei Lim; Shumin Zhang; Xiufeng Yang

doi:10.1117/12.667081

28 January 2006 Novel optical filters based on tunable chirped-fiber Bragg gratings

Xinyong Dong, P. Shum, Mok Fei Lim, Shumin Zhang, Xiufeng Yang

Proceedings Volume 6025, ICO20: Optical Communication; 60251U (2006) https://doi.org/10.1117/12.667081
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

A bandwidth-tunable optical fiber Bragg grating filter with a large tuning range of 36 nm (1.8 - 37.8 nm) has been demonstrated, which represents, to the best of our knowledge, the broadest tuning range in reflection bandwidth of any optical fiber Bragg gratings that has been reported. The unique cantilever beam based chirp-rate tuning method used here may produce a changeable and uniform chirp rate along the length of the grating, with simultaneously keeping the center wavelength of the grating fixed. Based on this study, a spacing-tunable comb filter by using a sampled-chirped fiber Bragg grating has also been demonstrated. The change in spacing, with a tuning range up to 2.1 nm (1.2-3.3 nm), is also obtained by using the unique fiber grating chirp-rate tuning technique.

Citation Download Citation

Xinyong Dong, P. Shum, Mok Fei Lim, Shumin Zhang, and Xiufeng Yang "Novel optical filters based on tunable chirped-fiber Bragg gratings", Proc. SPIE 6025, ICO20: Optical Communication, 60251U (28 January 2006); https://doi.org/10.1117/12.667081

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