Simultaneous brightness enhancement and wavelength conversion to the eye-safe region in a high-power diamond Raman laser

被引：71

作者：

McKay, Aaron ^{[1
]}

Kitzler, Ondrej ^{[1
]}

Mildren, Richard P. ^{[1
]}

机构：

[1] Macquarie Univ, Dept Phys & Astron, MQ Photon Res Ctr, Fac Sci, Sydney, NSW 2109, Australia

来源：

LASER & PHOTONICS REVIEWS | 2014年 / 8卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

diamond; raman laser; eye-safe; high power lasers; brightness conversion; HIGH-AVERAGE-POWER; CONTINUOUS-WAVE; BEAM CLEANUP; NM; GENERATION; RADIATION; CRYSTAL;

D O I：

10.1002/lpor.201400012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Brightness enhancement in an external cavity diamond Raman laser designed for high power conversion of a neodymium (1064nm) laser to the eye-safe spectral region is reported. Using a multimode input beam pulsed at 36kHz pulse repetition frequency, 16.2W with 40% overall conversion efficiency was obtained at the second Stokes wavelength of 1485nm. The output beam had a quality factor of M2=1.17 +/- 0.08 which is a factor of 2.7 times lower than that of the input beam, resulting in a higher overall brightness. The output power, brightness, and brightness enhancement obtained represent significant advances in performance for Raman lasers as well as other competing kHz-pulsed eye-safe technologies.

引用

页码：L37 / L41

页数：5

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