期刊
OPTICS EXPRESS
卷 13, 期 25, 页码 9954-9960出版社
OPTICAL SOC AMER
DOI: 10.1364/OPEX.13.009954
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In this paper, we completely study the wavelength dependency of differential group delay (DGD) in uniform fiber Bragg gratings (FBG) exhibiting birefringence. An analytical expression of DGD is established. We analyze the impact of grating parameters ( physical length, index modulation and apodization profile) on the wavelength dependency of DGD. Experimental results complete the paper. A very good agreement between theory and experience is reported.
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