Xu Fang, Yan Hong, Zhang Yonghong, Wan Min. Ultra-Narrow Linewidth Spectral Filtering Technology Based on Double Gratings[J]. Chinese Journal of Lasers, 2017, 44(8): 811003
- Chinese Journal of Lasers
- Vol. 44, Issue 8, 811003 (2017)
Fig. 1. Narrow band spectrum filtering system base on double MLD gratings
Fig. 2. Location of light intensity distribution of different wavelengths
Fig. 3. Distribution of slit transmission spectrum
Fig. 4. Relationship between filtering spectral width and slit width
Fig. 5. Relationship between effective spectral energy and slit width
Fig. 6. Relationship between filtering spectral width and focal length of the lens
Fig. 7. Relationship between effective spectral energy and focal length of the lens
Fig. 8. Relationship between filtering spectral width and slit width
Fig. 9. Relationship between effective spectral energy and slit width
Fig. 10. Relationship between filtering spectral width and focal length of the lens
Fig. 11. Relationship between effective spectral enegy and focal length of the lens
Fig. 12. (a) Zero-grating experiment system; (b) single-grating experiment system; (c) double-grating experiment system
Fig. 13. Experimental results. (a) Zero-grating system; (b) single-grating system; (c) double-grating system
Fig. 14. Relationship between facula center position and angle offset
Fig. 15. Relationship between facula center position and wavelength
Fig. 16. System simulation of CODE V
Fig. 17. Theoretical aberration of the narrow band spectrum filtering system using double MLD grattings
Fig. 18. Spectrum of input laser
Fig. 19. Spectrum of output laser
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