• Chinese Optics Letters
  • Vol. 17, Issue 4, 040501 (2019)
Baoxing Xiong1,2,3, Fan Gao1,2,3, Xiang Zhang1,2,3,*, and Xiao Yuan1,2,3
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China
  • 2Jiangsu Provincial Key Laboratory of Advanced Optical Manufacturing Technologies and Key Laboratory of Modern Optical Technologies of the Ministry of Education, Suzhou 215006, China
  • 3Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China
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    DOI: 10.3788/COL201917.040501 Cite this Article Set citation alerts
    Baoxing Xiong, Fan Gao, Xiang Zhang, Xiao Yuan, "Angular filtering by volume Bragg grating in photothermorefractive glass for nanosecond laser pulse," Chin. Opt. Lett. 17, 040501 (2019) Copy Citation Text show less
    (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. 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.
    Stimulated angular selectivity of two VBGs.
    Fig. 2. Stimulated angular selectivity of two VBGs.
    Near-field distribution of the (a) modulated beam and (b) filtered beam through the angular filter.
    Fig. 3. Near-field distribution of the (a) modulated beam and (b) filtered beam through the angular filter.
    PSD curves of the modulated and filtered beams in (a) the x direction and (b) the y direction.
    Fig. 4. PSD curves of the modulated and filtered beams in (a) the x direction and (b) the y direction.
     VBG-IVBG-II
    Central wavelength1053 nm
    Period2.50 μm3.49 μm
    Thickness3.54 mm
    Tilt angle0.16°0.14°
    Bragg angle11.9°8.9°
    Table 1. Parameters of the VBGs Used in the Experiment
     Modulated BeamFiltered Beam
    M1.9541.115
    C38.5%8.6%
    Table 2. Results of M and C
    Baoxing Xiong, Fan Gao, Xiang Zhang, Xiao Yuan, "Angular filtering by volume Bragg grating in photothermorefractive glass for nanosecond laser pulse," Chin. Opt. Lett. 17, 040501 (2019)
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