Zhijie Li, Qingqing Kong, Mingdong Zhang, Ziheng Jing, Yinxu Bian, Hua Shen, Rihong Zhu. Analysis and treatment of thermal effects in 10 kW-level optic switch[J]. Infrared and Laser Engineering, 2022, 51(2): 20210909
- Infrared and Laser Engineering
- Vol. 51, Issue 2, 20210909 (2022)
Fig. 1. Schematic diagram of coupling system
Fig. 2. Schematic diagram of the optic switch coupling
Fig. 3. Optical path diagram of coupling system
Fig. 4. System temperature distribution without water cooling: (a) Input power is 1 W; (b) Input power is 12 kW
Fig. 5. Curve of the maximum temperature rise of the lens and variation rate of focal spot radius with the input power without water cooling
Fig. 6. Schematic diagram of circulating flow cooling method
Fig. 7. (a) Curve of maximum temperature rise of lens with input power under different water temperatures; (b) Curve of variation rate of focal spot radius with input power under different water temperatures
Fig. 8. (a) Curve of maximum temperature rise of lens with input power under different water velocities；(b) Curve of variation rate of focal spot radius with input power under different water velocities
Fig. 9. Curve of maximum temperature rise of the lens and variation rate of focal spot radius with the input power（The water temperature is 20 ℃, the water velocity is 0.01 m/s）
Fig. 10. (a) Physical device of the optic switch; (b) Schematic diagram of experiment
Fig. 11. Diagram of experimental result of coupling efficiency test
Fig. 12. Diagram of long-time stability test result of the optic switch
Fig. 13. (a) BPP stability test result of output beam of optic switch；(b) Final quality test result of output beam of optic switch
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