Stable high-efficiency continuous-wave diamond Raman laser at 1178 nm. (1st December 2022)

• Record Type: Journal Article
• Authors: Sun, Yuxiang; Li, Muye; Kitzler, Ondrej; Mildren, Richard Paul; Bai, Zhenxu; Zhang, Hongchao; Lu, Jian; Feng, Yan; Yang, Xuezong
• Is Part Of: Laser physics letters. Volume 19:Number 12(2022)
• Publication Date: 2022-12-01
• Subjects: diamond Raman laser -- stimulated Raman scattering -- stable high-efficiency resonator -- optical frequency conversion; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/ac9ce2
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We demonstrate a high-efficiency continuous-wave (CW) diamond Raman laser operating at 1178 nm with enhanced stability by using a V-cavity design. A maximum Stokes power of 39 W with a conversion efficiency of 45% was achieved using a linearly-polarized 1018 nm Yb-doped fiber pump laser. The Stokes CW power stability showed superior stability over a linear cavity when characterized over periods up to 15 min. The Stokes output was found to switch between linear, elliptical, and random polarization with varying pump polarization. The results represent a major step towards stable, efficient and high-power CW lasers at 1178 nm and at wavelengths outside the main Yb, and Nd emission bands.