Yusen Shi, Xue Pan, Peng Zhang, Qi Xiao, Zuqiang Li, Jiangfeng Wang, Youen Jiang, Wei Fan, Xuechun Li, Jianqiang Zhu. Technologies of Thin-Disk Continuous Wave Laser Based on Optical Adhesive[J]. Laser & Optoelectronics Progress, 2024, 61(5): 0514003
- Laser & Optoelectronics Progress
- Vol. 61, Issue 5, 0514003 (2024)
Fig. 1. Pump distribution on the surface of thin-disk crystal in our home-made module. (a) Photography; (b) imaging of fluorescence
Fig. 2. Pump absorption efficiency at different pump passes
Fig. 3. Analysis of temperature in thin disk crystal. (a) Simulated result of axial temperature; (b) measured result of temperature; (c) temperature profile on the front crystal surface; (d) measured maximum temperature on the front crystal surface with increasing pump power
Fig. 4. Simulated results of OPD when pump power density is 2.2 kW/cm2. (a) Filled contour plot of total OPD; (b) total OPD and OPD components induced by different effects for the thin disk
Fig. 5. Deformation measurement setup of thin disk crystal
Fig. 6. Measured OPD results of the thin disk crystal. (a) Filled contour plot of total thermal OPD for the thin disk when pump power density is 2.2 kW/cm2; (b) the measured dioptric power and aspherical aberration (PV) with increasing pump power
Fig. 7. Design of the thin-disk continuous wave laser. (a) Schematic of the thin-disk laser. (b) optical-to-optical efficiency as a function of coupling ratio of the end mirror with different factors for the integrated losses per round trip
Fig. 8. Output power and optical-to-optical efficiency with increasing pump power. Inset: near-field pattern of laser output at 70 W pump power
Fig. 9. Output power and optical-to-optical efficiency with increasing pump power after shortening the cavity length. Inset: near-field pattern of laser output at 110 W pump power
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