480nm激光器的双光子DAVLL谱稳频

J4 ›› 2011, Vol. 28 ›› Issue (6): 682-686.

480nm激光器的双光子DAVLL谱稳频

许鹏^1,2,3, 陈曦^1,2,3, 王谨^1,2,詹明生^1,2

1中国科学院武汉物理与数学研究所波谱与原子分子国家重点实验室-武汉光电国家实验室, 湖北武汉 430071；
2中国科学院冷原子物理中心, 湖北武汉 430071 ；
3 中国科学院研究生院，北京 100049

收稿日期:2010-11-05 修回日期:2010-11-16 出版日期:2011-11-28 发布日期:2011-11-14
通讯作者: 詹明生（1961- ）研究员, 研究方向为冷原子物理与量子信息。 E-mail:mszhan@wipm.ac.cn
基金资助:
This work was supported by the National Basic Research Program of China under Grant No. 2006CB921203, by the National Natural Science Foundation of China under Grant Nos. 10827404 and 10804124, and also by funds from the Chinese Academy of Sciences

Frequency stabilization of 480 nm laser using two-photon DAVLL

XU Peng^1,2,3, CHEN Xi ^1,2,3, WANG Jin^1,2 , ZHAN Ming-sheng ^1,2

1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China;
2 Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China;
3 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2010-11-05 Revised:2010-11-16 Published:2011-11-28 Online:2011-11-14

摘要/Abstract

摘要：

480nm激光的稳频对于实现铷原子从基态双光子相干激发到里德堡态必不可少。本工作基于梯形构型下的电磁诱导透明现象，一种新的480nm激光器稳频技术采用偏振谱稳频的780nm激光作为探测光而480nm激光则作为耦合光，在外加偏置磁场作用下产生的双光子双色原子气体激光锁频（DAVLL）谱方法，将该谱信号通过比例-积分-微分电路后反馈回480nm激光器即可实现稳频。在频率锁定后，480nm激光器和780nm激光器长时间稳频的总线宽为1MHz左右。

关键词: 激光技术, 激光稳频, 双光子双色原子气体激光锁频, 里德堡态跃迁

Abstract:

Frequency stabilization of a diode laser at 480nm is crucial for coherently exciting rubidium atoms to Rydberg states. Here reported is a laser laser frequency stabilization experimenttechnique techniques based on electromagnetically induced transparency in a ladder con?guration with a polarization spectroscopy stabilized 780nm diode laser as the probe laser and a 480nm laser as the coupling laser. With a uniform magnetic ?eld, a two-photon dichroic atomic vapor laser lock (DAVLL) spectroscopy iswas generated. Then this spectroscopy was and fed back through two proportion -integral -differential circuits to lock the 480nm diode laser. A combined linewidth of about 1MHz is achieved during the locking period.

Key words: laser techniques, laser frequency stabilization, two-photon dichroic atomic vapor laser lock, Rydberg transition

中图分类号:

TN248.4

许鹏陈曦王谨詹明生. 480nm激光器的双光子DAVLL谱稳频[J]. J4, 2011, 28(6): 682-686.

XU Peng, CHEN Xi, WANG Jin, ZHAN Ming-sheng. Frequency stabilization of 480 nm laser using two-photon DAVLL[J]. J4, 2011, 28(6): 682-686.

参考文献

[1] Singer K, Reetz-Lamour M, Amthor T, Marcassa L G, and Weidemller M, Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms[J] Phys. Rev. Lett. 2004, 93(16),163001
[2] Tauschinsky A, Thijssen R M T, Whitlock S, et al. Spatially resolved excitation of Rydberg atoms and surface effects on an atom chip[J] Phys.Rev. A 2010, 81(6), 063411
[3] Isenhower L, Urban E, Zhang X L, Gill A T, Henage T, et al. Demonstration of a Neutral Atom Controlled-NOT Quantum Gate[J] Phys. Rev. Lett. 2010, 104(1), 010503
[4] Wilk T, Gaetan A, Evellin C, Wolters J, Miroshnychenko Y, Grangier P and Browaeys A , Entanglement of Two Individual Neutral Atoms Using Rydberg Blockade[J] Phys. Rev. Lett. 2010, 104(1), 010502
[5] Chen C-S, Wang F, Liu S -H, Zhang Y-D, Review of frequency stabilization technology of semiconductor laser[J] Chinese Journal of Quantum Electronics,2010,27(5),513 (in Chinese)
[6] Corwin K L, Lu Z -T, Hand C F, Epstein R J and Wieman C E, Frequency-stabilized diode laser with the Zeeman shift in an atomic vapor[J] Appl.Opt. 1998, 37(15), 3295
[7] Lancaster G P T, Conroy R S, Cli?ord M A, Arlt J and Dholakia K, A polarisation spectrometer locked diode laser for trapping cold atoms[J] Opt. Com. 1999,170, 79
[8] Bjorklund G C, Frequency-modulation spectroscopy: a new method for measuring weak absorptions and dispersions[J] Opt. Lett. 1980, 5, 15
[9] Robins N P, Slagmolen B J J, Shaddock D A, Close J D, and Gray M B, Interferometer, modulation-free laser stabilization[J] Opt.Lett. 2002, 27, 1905
[10] Yan H, Yang G Q, Wang J, Zhan M S, Laser frequency stabilization based on Sagnac interferometer spectroscopy[J] Chin. Opt. Lett 2008, 6(4), 307
[11] Deiglmayr J, Reetz-Lamour M, Amthor T, Westermann S, Oliveira A L and Weidemuller M. Coherent excitation of Rydberg atoms in an ultracold gas[J] Opt. Comm. 2006, 264, 293
[12] Johnson T A, Urban E, Henage T, Isenhower L, Yavuz D D, Walker T G, and Saffman M, Rabi Oscillations between Ground and Rydberg States with Dipole-Dipole Atomic Interactions [J] Phys. Rev. Lett. 2008, 100, 113003.
[13] Reetz-Lamour M, Amthor T, Deiglmayr J, and Weidemuller M Rabi oscillations and excitation trapping in the coherent excitation of a mesoscopic frozen Rydberg gas[J] Phys. Rev. Lett. 2008,100, 253001
[14] Miroshnychenko Y, Gaetan A, Evellin C, Grangier P, Comparat D, Pillet P, Wilk T, and Browaeys A, Coherent excitation of a single atom to a Rydberg state[J] Phys. Rev. A 2010, 82, 013405
[15] Abel R P, Mohapatra A K, Bason M G, Pritchard J D, Weatherill K J, Raitzsch U, and Adams C S, Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system[J] Appl. Phys. Lett. 2009, 94, 071107
[16] Mohapatra A K, Jackson T R, and Adams C S Coherent Optical Detection of Highly Excited Rydberg States Using Electromagnetically Induced Transparency[J] Phys. Rev. Lett. 2007, 98, 113003 [17] Becerra F E, Willis R T, Rolston S L, and Orozco L A, Two-photon dichroic atomic vapor laser lock using electromagnetically induced transparency and absorption[J] ,J Opt Soc Am B，2009, 26, 1315
[18] Stoicheff B P and Weinberger E, Doppler-free two-photon absorption spectrum of rubidium[J] Can. J. Phys. 1979, 57, 2143
[19] Harvey K C and Stoicheff B P, Fine Structure of the n2D Series in Rubidium near the Ionization Limit[J] Phys. Rev. Lett. 1977, 38, 537