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Proceedings Paper

The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shifts
Author(s): Xia Li; P. Shum; Nam Quoc Ngo; Teehiang Cheng
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Paper 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.

Paper Details

Date Published: 11 November 2008
PDF: 4 pages
Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71340K (11 November 2008); doi: 10.1117/12.802963
Show Author Affiliations
Xia Li, Nanyang Technological Univ. (Singapore)
P. Shum, Nanyang Technological Univ. (Singapore)
Nam Quoc Ngo, Nanyang Technological Univ. (Singapore)
Teehiang Cheng, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 7134:
Passive Components and Fiber-based Devices V
Ming-Jun Li; Ping Shum; Ian H. White; Xingkun Wu, Editor(s)

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