Si Zhang, Nan Wang, Xubao Wang, Xuechun Lin. Improving Extinction Ratio of Output Laser with Anisotropy of Cr
4+∶YAG Crystal
[J]. Laser & Optoelectronics Progress, 2019, 56(16): 161401
- Laser & Optoelectronics Progress
- Vol. 56, Issue 16, 161401 (2019)
Fig. 1. Experimental equipment for testing anisotropy of Cr4+∶YAG crystal
![Relative position between polarization direction of incident laser and crystal axis of Cr4+∶YAG. (a) [100]-cut; (b) [110]-cut](/richHtml/lop/2019/56/16/161401/img_2.jpg)
Fig. 2. Relative position between polarization direction of incident laser and crystal axis of Cr4+∶YAG. (a) [100]-cut; (b) [110]-cut
Fig. 3. 1064 nm laser transmittance of Cr4+∶YAG in different cutting directions (initial transmittance is 30%)
Fig. 4. 1064 nm laser transmittance of Cr4+∶YAG at different power densities (initial transmittance is 30%). (a) [100]-cut; (b) [110]-cut
Fig. 5. 1064 nm laser transmittance under different initial transmissions of Cr4+∶YAG. (a) [100]-cut; (b) [110]-cut
Fig. 6. Diagram of passively Q-switched Nd∶YAG/Cr4+∶YAG laser with linear polarization pump
Fig. 7. Output pulse of [100]-cut Cr4+∶YAG Q-switched laser. (a) Pulse width; (b) repetition rate
Fig. 8. Output pulse of [110]-cut Cr4+∶YAG Q-switched laser. (a) Pulse width; (b) repetition frequency
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