磷酸钛钾
光学参量振荡器
材料科学
光学
瓦特
波长
激光器
信号(编程语言)
光电子学
Crystal(编程语言)
功率(物理)
物理
计算机科学
量子力学
程序设计语言
作者
Hang-hang Yu,Zhi-tao Zhang,Hong-wen Xuan
标识
DOI:10.1088/1674-1056/ac8346
摘要
Abstract We report a compact, efficient optical parametric oscillator (OPO) based on a periodically poled potassium titanyl phosphate (PPKTP) crystal pumped by a 532 nm laser, which generated 1.51 W of average power at the signal wavelength of 709 nm with the pulse duration of ~1.0 ns. The extraction efficiency was up to 59%. To the best of our knowledge, this is the first report on watt-level green-pumped PPKTP-based singly-resonant oscillator OPO (SRO-OPO). The precise build-up time of OPO was determined of 1.6 ns benefitting from the characteristic of twin-peak pulse profile of pump beam. The spectrum width of the idler was also measured to be 4.2 nm with the central wavelength of 2134 nm at 0.2 nm spectral resolution of optical spectrum analyzer. In addition, the beam quality of M 2 < 1.9 of generated signal exhibited a good consistency with M 2 < 1.5 for the pump source.
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