激光锁定F-P腔频率的有差锁定研究

李传亮; 邓伦华; 杨晓华; 陈扬骎

doi:doi:10.3788/aos20092910.2822

光学学报, 2009, 29 (10): 2822, 网络出版: 2009-10-19

激光锁定F-P腔频率的有差锁定研究

External Optical Cavity Locked by Laser Frequency

论文大纲

李传亮 ^*邓伦华杨晓华陈扬骎

作者单位

华东师范大学,精密光谱科学与技术国家重点实验室,上海 200062

激光光谱学自动调节技术光学谐振腔腔增强光谱 laser spectroscopy automatic servo-controlled technology optical cavity cavity enhanced spectroscopy

摘要

基于有差伺服调节技术,实现了外置光学谐振腔的共振频率与钛宝石激光器工作频率的锁定。该技术采用压电陶瓷作为执行元件,通过对压电陶瓷的调制,实现了对透射激光功率的调制,并由锁相放大器解调获得伺服信号,该伺服信号经过高压放大器放大后控制压电陶瓷的伸缩来调控谐振腔的腔长,从而使腔的共振频率锁定在激光频率上。当激光工作于单一频率时,谐振腔的谐振频率可以长时间地与激光频率保持锁定,锁定后腔的透射光功率相对起伏的稳定性为2%。当激光频率扫描时,谐振腔的谐振频率可以在2 GHz范围内不间断地与激光频率保持锁定。

Abstract

With the peak-seeking servo-controlled technology based on a residual error,an external optical cavity can keep in resonance with the frequency of Ti-sapphire laser in the experiment. The servo loop uses a piezoelectric transducer (PZT) as a modulator,which modulates the intensity of the transmitted light passing through the cavity. The servo signal is obtained from the lock-in amplifier,then it is amplified by a high voltage amplifier,which adjusts the length of the cavity according to the laser frequency. In this approach,the resonant frequency of the cavity can be locked to the laser frequency for a long time as the laser operates in a fixed frequency and the relative fluctuation of output power from the cavity is lower than 2%. When the frequency of the laser scans,the cavity is also capable to follow the variation of laser frequency automatically in an uninterrupted range of 2 GHz.

参考文献

[1] A. O'Keefe. Integrated cavity output analysis of ultra-weak absorption [J]. Chem. Phys. Lett.,1998,293(5-6):331-336

[2] G. Berden,R. Peeters,G. Meijer. Cavity-enhanced absorption spectroscopy of the 1.5 mm band system of jet-cooled ammonia [J]. Chem. Phys. Lett.,1999,307(3-4):131-138

[3] A. S. -C.Cheung,Tongmei Ma,Hongbing Chen. High-resolution cavity enhanced absorption spectroscopy using an optical cavity with ultra-high reflectivity mirrors[J]. Chem. Phys. Lett.,2002,353(3-4):275-280

[4] 赵卫雄,高晓明,张为俊等. 高灵敏度离轴积分腔输出光谱技术[J]. 光学学报,2006,26(8):1260-1264

Zhao Weixiong,Gao Xiaoming,Zhang Weijun et al.. High-sensitivity off-axis integrated cavity output spectroscopy [J]. Acta Optica Sinica,2006,26(8):1260-1264

[5] Zhao Weixiong,Gao Xiaoming. Wavelength modulated off-axis integrated cavity output spectroscopy in the near infrared [J]. Appl. Phy. B,2007,86:353-359

[6] 吴升海,杨铭,陈扬骎等. 磁旋转腔增强光谱技术[J]. 光学学报,2005,25(2):265-269

Wu Shenghai,Yang Ming,Chen Yangqin et al.. Magnetic rotation cavity enhanced spectroscopy [J]. Acta Optica Sinica,2005,25(2):265-269

[7] 裴世鑫,高晓明. 基于扫描激光的腔增强吸收光谱研究[J]. 光学与光电技术,2004,2:30-33

Pei Shixin,Gao Xiaoming. Study of cavity enhanced absorption spectroscopy based on a swept diode laser[J]. Optics and Optoelectronic Technology,2004,2:30-33

[8] A. O'Keefe,J. J. Scherer,J. B. Paul. Cw integrated cavity output spectroscopy [J]. Chem. Phys. Lett.,1999,307(5-6):343-349

[9] 刘煜炎,李奉廷. 调制对磁共振谱的线宽、线性及幅值得影响[J]. 波谱学杂志,1990,7:374-381

Liu Yuyan,Li Fengting. Effert of modnlation on magnetic resonance lines[J]. Chinese J. Magnetic Resonance,1990,7:374-381

李传亮, 邓伦华, 杨晓华, 陈扬骎. 激光锁定F-P腔频率的有差锁定研究[J]. 光学学报, 2009, 29(10): 2822. Li Chuanliang, Deng Lunhua, Yang Xiaohua, Chen Yangqin. External Optical Cavity Locked by Laser Frequency[J]. Acta Optica Sinica, 2009, 29(10): 2822.

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