From Event: SPIE Defense + Commercial Sensing, 2019
Volume Bragg Gratings (VBGs) in photo-thermo-refractive glass demonstrate outstanding properties in visible and near IR spectral region providing extremely high spectral and angular selectivity, and diffraction efficiency exceeding 99%. This paper reviews recent VBG technology improvements as well as various results on VBG applications that can lead to major improvements of fiber, solid-state, and diode laser system performance in 2 3 micron spectral range.
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Vadim Smirnov, Oleksiy Mokhun, Helene Mingareev, Larissa Glebova, Ruslan Vasilyeu, Alexei L. Glebov, and Leonid B. Glebov, "High efficiency volume Bragg gratings for 2-3 micron spectral region (Conference Presentation)," Proc. SPIE 10981, Laser Technology for Defense and Security XV, 1098103 (Presented at SPIE Defense + Commercial Sensing: April 17, 2019; Published: 14 May 2019); https://doi.org/10.1117/12.2521476.6036135724001.