Infrared and Laser Engineering, Volume. 52, Issue 7, 20220811(2023)
Er3+/Yb3+: Lu2Si2O7 crystal microchip laser pumped by LD at kHz
Figures & Tables(11)
Fig. 2. Free oscillation optimization results.（a） Free oscillating output power at different transmittance of output mirrors; （b） Comparison of output power under different pump spots; （c） Output power at different transmittance of output mirrors; （d） Fitting plot of slope efficiency
Fig. 4. Pulse performance for 1 kHz. （a） Pulse width figure; （b） Pump waveform and output laser pulse train;（c） Output laser pulse train; （d） Far field facula and beam quality measurement diagram
Fig. 5. Pulse performance for 10 kHz. （a） Pulse width figure; （b） Pump waveform and output laser pulse train; （c） Output laser pulse train; （d） Far field facula and beam quality measurement diagram
Table 1. Optimization of pump beam diameter for 1 kHz
View tableView in ArticleTable 1. Optimization of pump beam diameter for 1 kHz
Ffocus/ mm ωp/ μm fp/ kHz TQ TOC τp/ μs Ep/ mJ fo/ kHz Eo/ μJ 3 240 1 95.8% 15% 700 3.5 1 20 4 300 24 5 350 20
Table 2. Optimization of initial transmittance of Co2+:MgAl2O4 for 1 kHz
View tableView in ArticleTable 2. Optimization of initial transmittance of Co2+:MgAl2O4 for 1 kHz
fp/kHz TQ ωp/μm TOC τp/μs Ep/mJ fo/kHz Eo/μJ 1 94.5% 300 15% 700 3.5 1 27 95.8% 24
Table 3. Optimization of transmittance of output coupling mirror for 1 kHz
View tableView in ArticleTable 3. Optimization of transmittance of output coupling mirror for 1 kHz
fp/kHz TOC TQ ωp/μm τp/μs Ep/mJ Eo/μJ τo/ns 1 15% 94.5% 300 700 3.5 27 7.8 20% 35 7 30% 30 7.3
Table 4. Optimization of pump beam diameter for 10 kHz
View tableView in ArticleTable 4. Optimization of pump beam diameter for 10 kHz
Ffocus/ mm ωp/ μm fp/ kHz TQ TOC τp/ μs Ep/ mJ fo/ kHz Eo/ μJ 3 240 10 98.6% 15% 70 0.35 10 7 4 300 10 5 5 350 <10 -
Table 5. Optimization of initial transmittance of Co2+:MgAl2O4 for 10 kHz
View tableView in ArticleTable 5. Optimization of initial transmittance of Co2+:MgAl2O4 for 10 kHz
fp/kHz TQ ωp/μm TOC τp/μs Ep/mJ fo/kHz Eo/μJ 10 98.6% 240 15% 70 0.35 10 7 99% >10 -
Table 6. Optimization of transmittance of output coupling mirror for 10 kHz
View tableView in ArticleTable 6. Optimization of transmittance of output coupling mirror for 10 kHz
fp/kHz TOC TQ ωp/μm τp/μs Ep/mJ Eo/μJ τo/ns 10 8% 240 70 0.35 8 10 10% 98.6% 10 10 15% 7 12
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Xue Han, You Lv, Jianing Peng, Jiaxiang Guo, Yongling Hui, Zhanda Zhu, Hong Lei, Qiang Li. Er3+/Yb3+: Lu2Si2O7 crystal microchip laser pumped by LD at kHz[J]. Infrared and Laser Engineering, 2023, 52(7): 20220811
Paper Information
Category: Lasers & Laser optics
Received: Nov. 8, 2022
Accepted: --
Published Online: Aug. 16, 2023
The Author Email: Li Qiang (ncltlq@bjut.edu.cn)
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