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

详细信息    查看全文

• 作者：P.B. Jiang^a ; ^b ; Q. Sheng^a ; ^b ; X. Ding^a ; ^b ; ^{dingxin@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; B. Sun^a ; J. Liu^a ; ^b ; C. Zhao^a ; ^b ; G.Z. Zhang^a ; ^b ; ^{johngzhang@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; X.Y. Yu^c ; B. Li^d ; L. Wu^a ; ^b ; J.Q. Yao^a ; ^b
• 关键词：Dual-wavelength ; Raman laser ; Eye-safe region
• 刊名：Optics Communications
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：383
• 期：Complete
• 页码：6-10
• 全文大小：1502 K

文摘

An acousto-optic (AO) Q-switched dual-wavelength laser operating at 1.5 µm 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%.