Analysis of the spectrum distortions of optical fiber Bragg gratings fabricated in-line on a draw tower by the phase mask technique

Yu Zheng; Haihu Yu; Huiyong Guo; Xiaofu Li; Desheng Jiang

doi:10.1117/12.2059784

2 June 2014 Analysis of the spectrum distortions of optical fiber Bragg gratings fabricated in-line on a draw tower by the phase mask technique

Yu Zheng, Haihu Yu, Huiyong Guo, Xiaofu Li, Desheng Jiang

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91573D (2014) https://doi.org/10.1117/12.2059784
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

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Yu Zheng, Haihu Yu, Huiyong Guo, Xiaofu Li, and Desheng Jiang "Analysis of the spectrum distortions of optical fiber Bragg gratings fabricated in-line on a draw tower by the phase mask technique", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573D (2 June 2014); https://doi.org/10.1117/12.2059784

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