2026-10-13T23:38:02Z https://www.scidb.cn/oai

10.57760/sciencedb.07242 2023-02-07T14:41:23Z

2023-02-07 High-power single-frequency continuous 589 nm diamond sodium guide laser doi:10.57760/sciencedb.07242 en Crystalline Raman lasers based on diamond, due to its properties of high Raman gain, high thermal conductivity and spatial hole burning free, have gradually become a main technology to address high-power single-frequency lasers. A continuous wave single frequency 589 nm laser with the highest power of 16.5 W, the spectral linewidth of 16 MHz, the beam quality of M2=1.05 and the light-to-light conversion efficiency of 20%, was developed in a diamond Raman resonator with intracavity frequency doubling. This 589 nm diamond Raman laser was pumped by using an ytterbium-doped fiber laser at 1018 nm and was designed for the application of sodium guide star laser in astronomical observations and other research fields. A theoretical calculation based on external Raman resonance and intracavity frequency doubling was modeled to analyze the influence of the resonator output coupling at the Stokes and the temperature phase-matching of the frequency doubling crystal on the output power. Solid-state laser; single longitudinal mode laser; diamond; sodium laser guide star; second harmonic generation Xuezong Yang Wei You Yuxiang Sun Muye Li Huawei Jiang Dijun Chen Weibiao Chen Yan Feng PUBLIC https://creativecommons.org/publicdomain/zero/1.0/ dataset Science Data Bank