Yun Jiang, Bo Liu, Wei Fan. Characteristics of volume Bragg grating spectral filter[J]. Infrared and Laser Engineering, 2021, 50(12): 20210055
- Infrared and Laser Engineering
- Vol. 50, Issue 12, 20210055 (2021)
Fig. 1. Diffraction diagram of reflective VBG
Fig. 2. (a) Reflection spectra of VBG with different thicknesses at 1029 nm; (b) Reflection spectra of VBG with different thicknesses at 1064 nm
Fig. 3. (a) Reflection spectra of VBG with different refractive index modulation at 1029 nm; (b) Reflection spectra of VBG with different refractive index modulation at 1064 nm
Fig. 4. (a) Reflection spectra of different grating periods at 1029 nm; (b) Reflection spectra of different grating periods at 1064 nm
Fig. 5. (a) Reflection spectra of different grating angles at 1029 nm; (b) Reflection spectra of different grating angles at 1064 nm
Fig. 6. (a) Free spectral range of VBG at 1029 nm; (b) Out-band suppression of VBG at 1064 nm
Fig. 7. (a) Angular filtering characteristics of VBG with different thicknesses at 1029 nm; (b) Angular filtering characteristics of VBG with different thicknesses at 1064 nm
Fig. 8. Optical path of VBG test system
Fig. 9. (a) Measurement of diffraction efficiency of VBG at 1029 nm; (b) Measurement of diffraction efficiency of VBG at 1064 nm
Fig. 10. (a) Angle characteristics of VBG with center wavelength at 1029 nm; (b) Angle characteristics of VBG with center wavelength at 1064 nm
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Table 1. Comparison of VBG measurement data
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