intracavity-frequency doubling 基本例句 腔内倍频 Methods and mechanism of obtaining single-frequency in all-solid-state intracavity frequency doubling lasers by single-longitudinal-mode ways are described in this paper.本文详细分析了用单纵模法实现全固态腔内倍频激光器单频输出的各种方法和实验装置。