【作者】 任成； 张书练； 谈宜东；

【Author】 REN Cheng,ZHANG Shu-lian,TAN Yi-dong(State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments & Mechanology,Tsinghua University,Beijing 100084,China)

【机构】 清华大学精密测试技术与仪器国家重点实验室；

【摘要】 研究了在激光谐振腔内放置两片四分之一波片的新型微片双频激光器。两片波片之间的相对转动产生了可变的腔内双折射,由此引起激光器输出频差可调的正交偏振激光。对这种新型双频激光器的拍频频谱,频差范围,频差稳定度,重复性以及双模共存区域等特性进行了研究与分析。更多还原

【Abstract】 The paper presents a dual-frequency microchip Nd:YAG laser with two quarter wave plates in laser resonator.The intracavity variable birefringence,which is caused by relative rotation of these two wave plates in laser inner cavity,results in the output of two orthogonally linearly polarized modes with controllable intermode frequency.Characteristics of the developed dual-frequency laser including the spectrum,range,stability,repeatability of the beat frequency and the range of double-mode lasing are investigated and analyzed.更多还原