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紧凑坚固Littman-Metcalf型可调谐外腔半导体激光器

A Compact and Rugged Tunable External Cavity Diode Laser with Littman-Metcalf Configuration

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摘要

构建了一种基于Littman-Metcalf 结构的外腔半导体激光器。该激光器采用基于星形柔性铰链转动机制的紧凑型设计,并利用有限元分析的方法对其机械结构进行了分析及设计,转动臂实现了高达3.7 kHz的基模共振频率。根据无跳模调谐条件对外腔设计进行了优化,提高了激光器的性能。该激光器为单纵模运转,工作波长约为780 nm,无跳模调谐范围大于等于80 GHz,且在无重新装调情况下可稳定工作一年以上,表明激光器具有良好的可靠性。同时该激光器可锁定在87Rb(F=2→F′=2,3) 吸收峰上,持续时间超过24 h,其线宽为200 kHz,温度稳定度为35 MHz/℃,且稳频激光器的Allen方差在测量时间为3 s时可达到3.5×10 -11,24 h内光功率波动小于0.75%,具有较高的稳定性。

Abstract

An external cavity diode laser (ECDL) with Littman-Metcalf configuration is constructed in this paper. The ECDL adopts a compact structure with a star-flexure hinge as the tuning mechanism. Its mechanical characteristics and design are analyzed and optimized by finite element calculations. The first order resonance frequency of tuning arm is measured as 3.7 kHz. The laser cavity structure parameters are designed according to the mode-hop-free tuning condition, and the performance of the ECDL is obviously improved, showing single-mode operation with mode-hopping free tuning range over 80 GHz at 780 nm. The device has been operating stably without realignment for more than one year, indicating its good ruggedness. The frequency of ECDL can be locked at 87Rb (F=2→F′=2,3) transitions. The linewidth of 200 kHz and temperature stability of 35 MHz/℃ are measured, and the Allen deviation reaches 3.5×10-11 in 3-s integration time. Its output power is continuously monitored with fluctuation below 0.75% for 24 h, showing with good stability.

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中图分类号:TN248.4;TN242

DOI:10.3788/cjl201340.1102012

所属栏目:激光物理

基金项目:国家自然科学基金(61108028, 61178031)

收稿日期:2013-06-28

修改稿日期:2013-07-10

网络出版日期:--

作者单位    点击查看

魏芳:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800中国科学院大学, 北京 100049
陈迪俊:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
辛国锋:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
孙延光:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800中国科学院大学, 北京 100049
方祖捷:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
蔡海文:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800
瞿荣辉:中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室, 上海 201800

联系人作者:魏芳(weifang@siom.ac.cn)

备注:魏芳(1985—),女,博士研究生,主要从事外腔半导体激光器及其稳频技术等方面的研究。

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引用该论文

Wei Fang,Chen Dijun,Xin Guofeng,Sun Yanguang,Fang Zujie,Cai Haiwen,Qu Ronghui. A Compact and Rugged Tunable External Cavity Diode Laser with Littman-Metcalf Configuration[J]. Chinese Journal of Lasers, 2013, 40(11): 1102012

魏芳,陈迪俊,辛国锋,孙延光,方祖捷,蔡海文,瞿荣辉. 紧凑坚固Littman-Metcalf型可调谐外腔半导体激光器[J]. 中国激光, 2013, 40(11): 1102012

被引情况

【1】李斌,涂嫔,徐勇跃,李哲,余安澜,王新兵,左都罗. 405 nm波段光栅外腔窄线宽蓝紫光半导体激光器. 激光与光电子学进展, 2015, 52(3): 31404--1

【2】孟慧成,武德勇,谭昊,李建民,余俊宏,高松信. 窄光谱高亮度半导体激光器光栅-外腔光谱合束实验研究. 中国激光, 2015, 42(3): 302003--1

【3】吴月婷,范元媛,刘广义,周翊. 高能窄带激光系统中光谱纯度检测的实验研究. 激光与光电子学进展, 2015, 52(7): 73002--1

【4】李斌,高俊,赵俊,余安澜,王新兵,左都罗. 宽调谐范围光栅外腔窄线宽405 nm 蓝紫光半导体激光器研究. 中国激光, 2015, 42(12): 1202003--1

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