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Proceedings Paper

Analysis of the spectrum distortions of optical fiber Bragg gratings fabricated in-line on a draw tower by the phase mask technique
Author(s): Yu Zheng; Haihu Yu; Huiyong Guo; Xiaofu Li; Desheng Jiang
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Paper Abstract

Optical fiber Bragg grating (FBG) arrays can be fabricated in-line on a draw tower using the phase mask technique. On the FBG arrays, some grating spectrum distortions, for example, asymmetric side lobes or deformed side lobes, low extinction ratio of the main reflection peak and comb filter-type peaks, can be observed. We collected different distorted reflectance spectra of the in-line fabricated FBGs and compared them with the simulated spectra of FBGs. By comparing the experimental and theoretical FBG spectra, it is found that the different kinds of spectral distortions are caused by phase shifting, asymmetric apodization and nonlinear chirp.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573D (2 June 2014); doi: 10.1117/12.2059784
Show Author Affiliations
Yu Zheng, Wuhan Univ. of Technology (China)
Haihu Yu, Wuhan Univ. of Technology (China)
Huiyong Guo, Wuhan Univ. of Technology (China)
Xiaofu Li, Wuhan Univ. of Technology (China)
Desheng Jiang, Wuhan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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