Due to their excellent noise performance and technical maturity, ultra-stable continuous-wave neodymium-doped yttrium aluminum garnet lasers are one of the major light sources in a series of precision measurements such as ground and space-based gravitational wave detection, inter-satellite laser ranging and coherent optical communication. As the first step of developing an ultra-stable spaceborne laser, we carried out the design, development and environmental test of an all-solid-state Nd:YAG NPRO spaceborne laser. The laser deliveries 11.48 mW of optical power at 1064.405 nm, exhibits intensity and frequency noises less than 1 × 10−2/√Hz and 1 MHz/√Hz (Fourier frequencies > 10 mHz), respectively, passed environmental tests and has been onboard the first satellite of the Taiji program for one year. The work laid a solid foundation for realizing ultra-stable lasers for the Taiji program as well as being used in many space applications.

中文翻译：

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具有非平面环形振荡器配置的星载掺钕钇铝石榴石激光器

超稳定连续波掺钕钇铝石榴石激光器因其优异的噪声性能和技术成熟度，成为地基和天基引力波探测、星间等一系列精密测量的主要光源之一。激光测距和相干光通信。作为研制超稳定星载激光器的第一步，我们进行了全固态Nd:YAG NPRO星载激光器的设计、研制和环境试验。激光器在 1064.405 nm 处提供 11.48 mW 的光功率，强度和频率噪声小于 1 × 10-2/√赫兹和 1 兆赫/√赫兹（傅里叶频率 >10 mHz）分别通过环境测试，并已在太极计划的第一颗卫星上运行了一年。这项工作为实现太极计划的超稳定激光器以及在许多空间应用中的应用奠定了坚实的基础。