24 October 2017 Diffraction characteristics of hump volume Bragg grating in photo-thermo-refractive glass
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Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 1045725 (2017) https://doi.org/10.1117/12.2284772
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
The diffraction characteristics of hump volume Bragg grating in photo-thermo-refractive glass are analyzed with coupled-wave theory. Results show that the diffraction efficiency of hump volume Bragg gratings (HVBGs) is increasing with the product of refractive index modulation and grating thickness. Keeping the refractive index modulation and grating thickness, the interval between the hump peaks enlarges with the grating period increasing. Keeping the grating period and the product of refractive index modulation and grating thickness, the interval between the hump peaks enlarges with the grating thickness decreasing. Moreover, the angular selectivity of HVBGs is getting better with the larger interval.
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Xin Wang, Fan Gao, Xiang Zhang, Xiao Yuan, "Diffraction characteristics of hump volume Bragg grating in photo-thermo-refractive glass", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045725 (24 October 2017); doi: 10.1117/12.2284772; https://doi.org/10.1117/12.2284772
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