Diode-pumped continuous-wave Nd:GSAG lasers operating at 1.4 μm

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-09-23 DOI:10.1016/j.optlastec.2024.111846

引用次数: 0

Abstract

We report a laser diode-pumped continuous-wave (CW) Nd:GSAG lasers operating at 1.4 μm for the first time. By rotating the intracavity Lyot filter, three tuning wavelengths at 1402, 1426 and 1440 nm were realized, respectively. At an incident pump power of 20 W, the maximum output power of 2.3 W at 1440 nm was obtained with the slope efficiency of 13.6 % and the optical conversion efficiency of 11.5 %. Besides, simultaneous dual-wavelength lasers operating at 1402 and 1426 nm, 1402 and 1440 nm, 1426 and 1440 nm were also obtained, respectively. At an incident pump power of 20 W, the total output power of the1426 and 1440 nm wavelengths was 1.84 W with the total slope efficiency of 11.8 % and the total optical conversion efficiency of 9.2 %. To the best of our knowledge, this is the first work realizing dual-wavelength laser operating at 1.4 μm in Nd-doped crystals.

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工作波长为 1.4 μm 的二极管泵浦连续波 Nd:GSAG 激光器

我们首次报道了工作波长为 1.4 μm 的二极管泵浦连续波 (CW) Nd:GSAG 激光器。通过旋转腔内 Lyot 滤波器，实现了分别为 1402、1426 和 1440 nm 的三个调谐波长。入射泵浦功率为 20 W 时，1440 nm 波长的最大输出功率为 2.3 W，斜率效率为 13.6%，光转换效率为 11.5%。此外，还同时获得了工作波长分别为 1402 和 1426 nm、1402 和 1440 nm、1426 和 1440 nm 的双波长激光器。入射泵浦功率为 20 W 时，1426 和 1440 nm 波长的总输出功率为 1.84 W，总斜率效率为 11.8 %，总光转换效率为 9.2 %。据我们所知，这是首次在掺钕晶体中实现工作波长为 1.4 μm 的双波长激光器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems