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Proceedings Paper

Analysis and fabrication of broadband add/drop filters using a Bragg grating-assisted mismatched coupler
Author(s): L. Y Fan; J. Li; W. W. Jiang; J. J. Zheng; Z. M. Liu; S. S. Jian
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Paper Abstract

The unified coupled-mode formalism derived from Maxwell's equation is employed to analyze the add/drop filters using a Bragg grating assisted mismatched coupler. By writing a linearly chirped Bragg grating over the uniform coupling region of the coupler, a filter with maximum reflectivity and 3dB bandwidth at the drop port about 20 dB and 0.8 nm, respectively, is obtained. The experimentally measured results are in good agreement with the numerical calculations. A broadband add/drop filter using a Bragg grating-assisted mismatched coupler can be obtained by writing a linearly chirped Bragg grating over the uniform coupling region of the coupler.

Paper Details

Date Published: 2 December 2009
PDF: 6 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 763011 (2 December 2009); doi: 10.1117/12.851565
Show Author Affiliations
L. Y Fan, Beijing Jiaotong Univ. (China)
J. Li, Beijing Jiaotong Univ. (China)
China Academy of Railway Sciences (China)
W. W. Jiang, Beijing Jiaotong Univ. (China)
J. J. Zheng, Beijing Jiaotong Univ. (China)
Z. M. Liu, Beijing Jiaotong Univ. (China)
S. S. Jian, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI
Perry P. Shum, Editor(s)

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