Continuous wave dual-wavelength Nd:YVO4 laser at 1342 and 1525 nm for generating a 714-nm emission

被引：10

作者：

Chen, Y. F. ^{[1
]}

Zheng, Z. X. ^{[1
]}

Huang, C. Y. ^{[1
]}

Guo, B. C. ^{[1
]}

Tsou, C. H. ^{[1
]}

Liang, H. C. ^{[2
]}

机构：

[1] Natl Yang Ming Chiao Tung Univ, Dept Electrophys, 1001 Ta Hsueh Rd, Hsinchu 30010, Taiwan

[2] Natl Taiwan Ocean Univ, Inst Optoelect Sci, Keelung 20224, Taiwan

来源：

OPTICS LETTERS | 2022年 / 47卷 / 15期

关键词：

EFFICIENT CONTINUOUS-WAVE; SELF-RAMAN LASER; EYE-SAFE LASER; STATE; CONVERSION; OPERATION; ND-GDVO4;

D O I：

10.1364/OL.466231

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Continuous wave dual-wavelength lasers at 1342 and 1525 nm are developed by using separate Nd:YVO4 and YVO4 crystals to form compactly coupled cavities for fundamental and Raman waves, respectively. The design of the coupled cavity not only reduces the thermal lensing effect in the Nd:YVO4 crystal, but also improves the stimulated Raman scattering (SRS) efficiency in the undoped YVO4 crystal. In addition, the Raman crystal is coated to form a highly reflective mirror to minimize cavity losses. By using a plano-concave cavity with a pump power of 40 W, the output powers of the fundamental and Raman waves are 470 mW and 310 mW, respectively. Changed to a concave cavity, the output powers of fundamental and Raman waves are 220 mW and 510 mW, respectively. Basis on the dual-wavelength operation, the maximum output power at 714 nm can reach 2.0 W via the sum frequency generation. A light source at 714 nm can be used for laser spectroscopy of atomic and ionic radium isotopes. (C) 2022 Optica Publishing Group

引用

页码：3792 / 3795

页数：4

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