Fabrication of Dual-Wavelength Fiber Bragg Grating with a Longitudinal Stretch

doi:10.1007/s11467-005-0003-7

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Front. Phys. ›› 2006, Vol. 1 ›› Issue (1) : 108-111. DOI: 10.1007/s11467-005-0003-7

Fabrication of Dual-Wavelength Fiber Bragg Grating with a Longitudinal Stretch

JIANG Li¹, ZHANG Dong-sheng², ZHANG Wei-gang², KAI Gui-yun², DONG Xiao-yi²

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Abstract

A method of fabricating dual-wavelength fiber Bragg grating with a uniform phase mask is demonstrated. Theoretical analysis and numerical simulation using Matrix method are given. The moving exposing technique is adopted. Good control over the grating s reflectivity and the separation of the two Bragg wavelengths is enabled by adjusting the stretch, the length of the grating, and the exposure. A grating with two equal transmission peaks of 19.5 dB is obtained by using this method, and the separation of the two Bragg wavelengths is 0.78 nm.

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JIANG Li, ZHANG Dong-sheng, ZHANG Wei-gang, KAI Gui-yun, DONG Xiao-yi. Fabrication of Dual-Wavelength Fiber Bragg Grating with a Longitudinal Stretch. Front. Phys., 2006, 1(1): 108‒111 https://doi.org/10.1007/s11467-005-0003-7