A green laser at 517 nm based on intracavity frequency doubling of the diode-pumped Yb:LO laser

Abstract

We report for the first time, to our knowledge, the diode-pumped continuous-wave (CW) thin-disk Yb³⁺-doped Lu₂O₃ (Yb:LO) laser at 1 034 nm and the second-harmonic generation at 517 nm. With a 6.3% output coupler, the maximum output power is 1.17 W under a pump power of 18.5 W. Moreover, the intracavity second-harmonic generation (SHG) is also achieved with power of 193 mW at 517 nm by using an LiB₃O₅ (LBO) nonlinear crystal. The beam quality factor M² is about 1.28. The fluctuation of the output power is about 3% in 1 h.

Keywords

Pump Power / Incident Pump Power / Nonlinear Crystal / Slope Efficiency / Optic Letter

References

[1] YaoJ-q, ZhangZ, XuD-g, ZhangH, LiJ-q, WangY-y, ZhongK. Journal of Optoelectronics·Laser, 2013, 24: 629

[2] LiQ, JiangM-h, SunZ, ZhangX, LeiH. Journal of Optoelectronics·Laser, 2012, 23: 429

[3] LüY, XiaJ, ChengW, ChenJ, NingG, LiangZ. Optics Letters, 2010, 35: 3670

[4] ShiJ-j, TianZ-h, QinL, ZhangY, WangZ-f, LiangX-m, YangY, NingY-q, LiuY, WangL-j. Journal of Optoeletronics·Laser, 2010, 21: 1445

[5] LiangH-C, LeeY-C, TungJ-C, SuK-W, HuangK-F, ChenY-F. Optics Letters, 2012, 37: 4609

[6] SamantaG K, Ebrahim-ZadehM. Optics Letters, 2010, 35: 1986

[7] LiY L. Laser Physics, 2011, 21: 1855

[8] LiY L, JiangH L, NiT Y, ZhangT Y, TaoZ H, ZengY H. Laser Physics, 2011, 21: 670

[9] YaoJ-q, ZhangZ, XuD-g, ZhangH, LiJ-q, WangY-y, ZhongK. Journal of Optoeletronics·Laser, 2013, 24: 629

[10] LüY F, XiaJ, YinX D, WangD, ZhangX H. Laser Physics Letters, 2010, 7: 11

[11] XieG Q, QianL J, XuX D, ChengY, ZhaoZ W, TangD Y, ZhangJ, TanW D, XuJ. Laser Physics, 2010, 20: 1331

[12] LiD Z, XuX D, XuC W, ZhangJ, TangD Y, ChengY, XuJ. Optics Letters, 2011, 36: 3888