2.79 μm Cr,Er:YSGG laser with a high energy realized by thermal bonding and concave end-face

被引：5

作者：

Chen, Yuwei ^{[1
,2
]}

Sun, Dunlu ^{[1
,3
,4
]}

Zhang, Huili ^{[1
,3
,4
]}

Luo, Jianqiao ^{[1
,3
,4
]}

Quan, Cong ^{[1
,3
,4
]}

Han, Zhiyuan ^{[1
,2
]}

Qiao, Yang ^{[1
,2
]}

Wang, Zhentao ^{[1
,2
]}

Cheng, Maojie ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Crystal Lab Laser Technol Res Ctr, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Peoples R China

[3] Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China

[4] Key Lab Photon Devices & Mat, Hefei 230031, Anhui, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2023年 / 162卷

基金：

中国国家自然科学基金;

关键词：

Cr; Er:YSGG crystal; Thermal bonding; Concave end-faces; High energy; OPTICAL PARAMETRIC OSCILLATOR; PERFORMANCE; CRYSTAL; ER;

D O I：

10.1016/j.optlastec.2023.109255

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the influence of thermal bonding and concave end-face on the 2.79 mu m laser performance of Cr, Er:YSGG crystal. The simulation results of temperature distribution suggest that the two pure YSGG crystals bonded on the Cr,Er:YSGG as end-caps are beneficial to improve the heat dissipation capability. The experi-mental results of thermal focal length show that the thermal effects of un-bonding, planar thermal bonding, and concave thermal bonding Cr,Er:YSGG crystals are in descending tendency. The maximum output energies and slope efficiencies for concave thermal bonding Cr,Er:YSGG crystal are 3.480 J, 3.33 %@5 Hz; 2.126 J, 3.65 % @10 Hz; 1.384 J, 3.63 %@15 Hz; 1.155 J, 3.65 %@20 Hz, respectively, and the beam quality factors M-x(2)/ M-y(2) are determined to be 7.68/8.63. The result is much better than the previous work, indicating that the xenon lamp pumped concave thermal bonding Cr,Er:YSGG crystal is a promising method to realize high energy laser output. All the results indicate that the thermal bonding and concave end-faces are promising methods to reduce the thermal effect and improve the laser performance of Cr,Er:YSGG crystal pumped by the xenon lamp.

引用

页数：7

共 26 条

[1] Tunable 7-12-mu m optical parametric oscillator using a Cr,Er:YSGG laser to pump CdSe and ZnGeP2 crystals [J].