采用低损耗人造金刚石的1.6瓦连续波拉曼激光器。

1.6 W continuous-wave Raman laser using low-loss synthetic diamond.

作者信息

Lubeigt Walter, Savitski Vasili G, Bonner Gerald M, Geoghegan Sarah L, Friel Ian, Hastie Jennifer E, Dawson Martin D, Burns David, Kemp Alan J

机构信息

Institute of Photonics, University of Strathclyde, SUPA, Glasgow, UK.

出版信息

Opt Express. 2011 Mar 28;19(7):6938-44. doi: 10.1364/OE.19.006938.

DOI:10.1364/OE.19.006938

PMID:21451719

Abstract

Low-birefringence (Δn<2x10(-6)), low-loss (absorption coefficient <0.006 cm(-1) at 1064 nm), single-crystal, synthetic diamond has been exploited in a CW Raman laser. The diamond Raman laser was intracavity pumped within a Nd:YVO4 laser. At the Raman laser wavelength of 1240 nm, CW output powers of 1.6 W and a slope efficiency with respect to the absorbed diode-laser pump power (at 808 nm) of ~18% were measured. In quasi-CW operation, maximum on-time output powers of 2.8 W (slope efficiency ~24%) were observed, resulting in an absorbed diode-laser pump power to the Raman laser output power conversion efficiency of 13%.

摘要

低双折射（Δn<2×10⁻⁶）、低损耗（在1064nm处吸收系数<0.006cm⁻¹）的单晶合成金刚石已被用于连续波拉曼激光器。该金刚石拉曼激光器在Nd:YVO₄激光器腔内泵浦。在1240nm的拉曼激光波长下，测得连续波输出功率为1.6W，相对于吸收的二极管激光泵浦功率（808nm）的斜率效率约为18%。在准连续波运行中，观察到最大开启时间输出功率为2.8W（斜率效率约24%），导致二极管激光泵浦到拉曼激光输出功率的转换效率为13%。