Wei Dou, Shanshan Hou, Zhiyuan Zheng, Bowei Yu, Xi Chen, Quan Zheng. Development of All Solid State Single Longitudinal Mode 273 nm Deep-Ultraviolet Laser[J]. Chinese Journal of Lasers, 2023, 50(23): 2301006
- Chinese Journal of Lasers
- Vol. 50, Issue 23, 2301006 (2023)
Fig. 1. Absorption spectra of Pr3+∶LiYF4 crystal
Fig. 2. Curve of LD wavelength changing with power
Fig. 3. Polarization-dependent emission cross section of a Pr3+∶LiYF4 crystal (the inset shows the details of the investigated emission spectrum)
Fig. 4. All solid state single longitudinal mode 273 nm DUV laser
Fig. 5. Stability analysis of resonant cavity. (a) Simulation of beam waist radius in the resonant cavity; (b) simulation of stability map in the resonant cavity
Fig. 6. Transmittance of F-P etalon. (a) Combined transmittance of two F-P etalons in the range of 0.25 nm; (b) combined transmittance of two F-P etalons in the range of 0.02 nm
Fig. 7. Test diagram of wavelength and linewidth
Fig. 8. Test diagram of wavelength stability in 2 h
Fig. 9. Output power characteristic of single longitudinal mode 273 nm deep UV laser & power stability of 273 nm laser in 1 h
Fig. 10. 273 nm laser transverse mode characteristic photos. (a) Laser beam; (b) measured beam quality factor M2
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Table 1. Peak absorption cross section of blue light in Pr3+∶LiYF4 crystal (room temperature)
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