Baoxing Xiong, Fan Gao, Xiang Zhang, Xiao Yuan. Angular filtering by volume Bragg grating in photothermorefractive glass for nanosecond laser pulse[J]. Chinese Optics Letters, 2019, 17(4): 040501
- Chinese Optics Letters
- Vol. 17, Issue 4, 040501 (2019)
Fig. 1. (a) Schematic diagram of the experiment on an angular filter for an ns pulse laser. (b) The structural schematic diagram of a 2D angular filter.
Fig. 2. Stimulated angular selectivity of two VBGs.
Fig. 3. Near-field distribution of the (a) modulated beam and (b) filtered beam through the angular filter.
Fig. 4. PSD curves of the modulated and filtered beams in (a) the
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Table 1. Parameters of the VBGs Used in the Experiment
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Table 2. Results of M and C
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