光学精密工程2018，Vol.26Issue(12)：2888-2893,6.DOI:10.3788/OPE.20182612.2888
内置标准具光栅腔XeF(C-A)准分子激光器的线宽压缩
Spectral compression of XeF (C-A) excimer laser using grating resonator with an intra-cavity etalon
摘要
Abstract
In order to improve the signal-to-noise ratio for laser applications underwater, agrating resonator with an intra-cavity etalon was designed to compress the spectrum of XeF blue-green laser.First, agrating resonator was used to obtain a sub-nanometer laser linewidth, and then, a further spectral compression was performed by inserting an etalon into the grating resonator.The experimental results show that a linewidth of 0.14 nm can be obtained by using a 1 200 line/mm grating, and the linewidth can be further compressed to 39 pm by inserting an etalon, with a reflectivity of 50％, in the grating resonator.The final laser pulse energy is about 65 mJ and the pulse duration is 1μs.Although the gain coefficient of the XeF (C-A) laser is low, the optical loss of the resonator can be reasonably controlled by optimizing the working parameters of the grating and the etalon, thereby a 10 pm-level laser linewidth can be realized.关键词
激光技术/XeF激光/低增益系数/线宽压缩Key words
laser technology/XeF laser/low gain coefficient/spectral compression分类
信息技术与安全科学引用本文复制引用
朱峰,于力,易爱平,沈炎龙,黄超..内置标准具光栅腔XeF(C-A)准分子激光器的线宽压缩[J].光学精密工程,2018,26(12):2888-2893,6.基金项目
激光与物质相互作用国家重点实验室基金资助项目(No.SKLLIM1309) （No.SKLLIM1309）
