The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shifts

Xia Li; P. Shum; Nam Quoc Ngo; Teehiang Cheng

doi:10.1117/12.802963

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11 November 2008 The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shifts

Xia Li, P. Shum, Nam Quoc Ngo, Teehiang Cheng

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Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 71340K (2008) https://doi.org/10.1117/12.802963
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

Phase sampling and phase shift techniques are introduced in a uniform fiber Bragg grating (FBG) structure to achieve a multi-bandpass filter with ultranarrow transmission bandwidth. A pair of dual-bandpass transmission windows are opened at 1542.32, 1542.36, and 1542.66, 1542.71 nm, respectively. The channel spacing between the pair can be designed by the phase sampling period, as well as the wavelength spacing in the dual-bandpass can be controlled through the phase shift length. This new kind of bandpass structure can be applied in the ultranarrow filtering in multi-channel, multi-wavelength distributed feedback Bragg lasing, photonic generation of microwave signal etc.

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Xia Li, P. Shum, Nam Quoc Ngo, and Teehiang Cheng "The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shifts", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71340K (11 November 2008); https://doi.org/10.1117/12.802963

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