Dual-wavelength eye-safe Nd:GYSGG/YVO4 intracavity Raman laser under in-band pumping

作者：Jiang, P. B.; Sheng, Q.; Ding, X.^*; Sun, B.; Liu, J.; Zhao, C.; Zhang, G. Z.^*; Yu, X. Y.; Li, B.; Wu, L.; Yao, J. Q.

来源：Optics Communications, 2017, 383: 6-10.

DOI：10.1016/j.optcom.2016.08.054

• Dual-wavelength
• Raman laser
• Eye-safe region

An acousto-optic (AO) Q-switched dual-wavelength laser operating at 1.5 mu m eye-safe region is demonstrated via stimulated Raman scatting of a-cut YVO4-Nd:YVO4 crystal within an end-pumped dual wavelength Nd:GYSGG laser cavity. The in-band pumping absorption peak and coefficient of the dual wavelength laser crystal Nd:GYSGG are measured in order to carry out efficient pumping, thus overcoming the drawbacks of short thermal focal length of the crystal and scale up the eye-safe output. Under 23.2 W absorbed pump power, 2.11 W of simultaneous dual-wavelength outputs at 1497 and 1516 nm are obtained with a pulse repetition rate of 23 kHz and a corresponding conversion efficiency of 9.1%.

• 出版日期2017-1-15
• 单位南开大学; 天津大学; 天津理工大学