宽频调谐的光纤耦合声光调制系统

发布时间：2018-01-14 08:41

本文关键词：宽频调谐的光纤耦合声光调制系统　出处：《光子学报》2017年11期 　论文类型：期刊论文

【摘要】：采用双次通过声光调制器和"猫眼"结构,消除频率调制带来的光路偏转并增大激光频率的调谐范围,使用射频驱动功率反馈调节法实现了激光功率的稳定.理论计算和实验验证表明,选择焦距为40mm透镜方案,激光频率调谐在160 MHz时,系统整体光纤耦合效率达到了56.8%.在保证系统光利用率大于15%时,系统的有效频率调谐范围为100 MHz.通过功率稳定系统,在频率调谐60 MHz的变化范围内,输出光功率波动控制在±0.07%以内并能保持长期稳定工作.
[Abstract]:The optical path deflection caused by frequency modulation is eliminated and the tuning range of laser frequency is enlarged by double pass acousto-optic modulator and cat's eye structure. The stability of laser power is realized by using RF drive power feedback method. Theoretical calculation and experimental verification show that the laser frequency tuning is 160 MHz when focal length is 40mm lens scheme. The overall fiber-optic coupling efficiency of the system is 56.8. When the optical utilization ratio of the system is greater than 15, the effective frequency tuning range of the system is 100 MHz. In the range of frequency tuning of 60 MHz, the fluctuation of output optical power is controlled within 卤0.07%, and the output power can be kept stable for a long time.
【作者单位】：中国科学院国家授时中心;中国科学院时间频率基准重点实验室;中国科学院大学;
【基金】：国家自然科学基金(Nos.61127901,11603031)资助~~
【分类号】：TN761
【正文快照】： Fiber-Coupled Acousto-Optic Modulator System with Wide Frequency TuningCHEN Jiang1,2,3,RUAN Jun1,2,LIU Dan-dan1,2,3,WANG Xin-liang1,2,3,WANG Xin1,2,ZHANG Shou-gang1,2(1 National Time Service Center,Chinese Academy of Science,Xi′an 710600,China)(2 Key La

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