894nm高温垂直腔面发射激光器及其芯片级铯原子钟系统的应用

张星; 张奕; 张建伟; 张建; 钟础宇; 黄佑文; 宁永强; 顾思洪; 王立军

doi:10.7498/aps.65.134204

摘要

报道了自行研制的894 nm高温垂直腔面发射激光器(VCSEL)以及基于此类器件的芯片级铯原子钟系统的应用实验结果. 根据芯片级铯原子钟对VCSEL在特定高温环境下产生894.6 nm线偏振激光的要求, 对器件的量子阱增益及腔模位置等材料结构参数进行了优化, 确定增益-腔模失谐量为-15 nm, 使器件的基本性能在高温环境下保持稳定. 研制的VCSEL器件指标为: 20-90 ℃温度范围内阈值电流保持在0.20-0.23 mA, 0.5 mA工作电流下输出功率0.1 mW; 85.6 ℃温度环境下激光波长894.6 nm, 偏振选择比59.8:1; 采用所研制的VCSEL 与铯原子作用, 获得了芯片级铯原子钟实施激光频率稳频的吸收谱线和实施微波频率稳频的相干布居囚禁谱线.

关键词:

Abstract

In this study, an 894 nm high temperature vertical-cavity surface-emitting laser (VCSEL) is reported. Furthermore, a Cs chip-scale atomic clock (CSAC) system experiment based on this VCSEL is carried out.To achieve low threshold/power consumption under high temperature condition, the VCSEL epitaxial structure is optimized. Especially, the so-called gain cavity-mode detuning technology is utilized to improve the temperature sensitivity of the device output characteristics. The relationship between the structure of quantum well and the gain is simulated by using the commercial software PICS3D. In order to achieve high gain and low threshold properties, the thickness of the quantum well is optimized. Based on the theory of transmission matrix, the VCSEL cavity mode (etalon) is calculated. Finally, a -15 nm quantum well gain-cavity mode offset is utilized to achieve relatively stable cavity mode gain, which can guarantee the temperature-insensitivity of the VCSEL output characteristics.The output performance of the VCSEL device we fabricated is investigated experimentally. The VCSEL lightcurrent (L-I) characteristic is tested under different temperatures. It is found that benefiting from the gain-cavity mode offset design, the threshold can be maintained at 0.200.23 mA when the temperature increases from 20 ℃ to 90 ℃. Meantime, the output power of more than 100 W is achieved at different temperature levels. By comparing with the results at room temperature, No dramatic degradation of the VCSEL high temperature L-I characteristics is found, which means that the VCSEL output characteristic is relatively temperature-insensitive. The wavelength of the VCSEL is 890.4 nm at a temperature of 20 ℃. When the temperature increases up to 85.6 ℃, the VCSEL wavelength is red-shifted to 894.6 nm (Cs D1 line), corresponding to a red shift ratio of 0.064 nm/℃. According to the polarization requirement of CSAC applications, the polarization properties of the VCSEL are studied and the results are as follows: under an injected current of 1 mA and operation temperature of 20 ℃, Pmax = 278.2 W and Pmin = 5.9 W, corresponding to a polarization ratio of 47:1; at a temperature of 85.6 ℃, Pmax = 239.2 W and Pmin = 4 W, corresponding to a polarization ratio of 59:8:1.Using the VCSEL reported in this paper as a laser source, the CSAC experiment is carried out. At 4.596 GHz of modulated frequency, the output laser of the VCSEL is collimated and interacts with Cs atoms. Finally the closed-loop frequency locking atomic clock is demonstrated. The Cs laser absorption spectrum for laser frequency stabilization, as well as the CPT signal for Cs CSAC microwave frequency stabilization is obtained.

Keywords:

vertical-cavity surface-emitting laser /
Cs chip-scale atomic clock /
high temperature /
coherent population trapping

作者及机构信息

1.
中国科学院长春光学精密机械与物理研究所, 发光学及应用国家重点实验室, 长春 130033;

2.
中国科学院武汉物理与数学研究所, 中国科学院原子频标重点实验室, 武汉 430071;

3.
中国科学院大学, 北京 100049

通信作者: 张建伟, zjw1985@ciomp.ac.cn ; 张建, zjw1985@ciomp.ac.cn ;

基金项目: 国家自然科学基金(批准号: 61434005, 61474118, 11304362)、国家科技重大专项(批准号: 2014ZX04001151)、吉林省科技发展计划项目(批准号: 20150203011GX, 20140101203JC)和长春市科技计划项目(批准号: 14KG006, 15SS02, 13KG22)资助的课题.

Authors and contacts

1.
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

2.
Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;

3.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: Zhang Jian-Wei, zjw1985@ciomp.ac.cn ; Zhang Jian, zjw1985@ciomp.ac.cn ;

Funds: Project supported by National Natural Science Foundation of China (Grant Nos. 61434005, 61474118, 11304362), National Science and Technology Major Project of the Ministry of Industry and Information Technology of China (Grant No. 2014ZX04001151), Jilin Scientific and Technological Development Program, China (Grant Nos. 20150203011GX, 20140101203JC), and Changchun Science and Technology Project, China (Grant Nos. 14KG006, 15SS02, 13KG22).

参考文献

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[10]	Geppert L 2005 IEEE Spect. 42 20
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[19]	Serkland D K, Geib K M, Lutwak R, Garvey R M, Varghese M, Mescher M 2006 Proc. SPIE 6132 613208
[20]	Al-Samaneh A, Bou Sanayeh M, Renz S, Wahl D, Michalzik R 2011 IEEE Photon. Tech. Lett. 23 1049
[21]	Gruet F, Al-Samaneh A, Kroemer E, Bimboes L, Miletic D, Affolderbach C, Wahl D, Boudot R 2013 Opt. Express 21 5781
[22]	Zhang J, Ning Y Q, Zeng Y G, Zhang J W, Zhang J L, Fu X H, Tong C Z, Wang L J 2013 Laser Phys. Lett. 10 045802
[23]	Zhang J W, Ning Y Q, Zhang X, Zeng Y G, Zhang J, Liu Y, Qin L, Wang L J 2013 Chin. Laser J. 40 0502001 (in Chinese) [张建伟, 宁永强, 张星, 曾玉刚, 张建, 刘云, 秦莉, 王立军 2013 中国激光 40 0502001]
[24]	Zhang J W, Zhang X, Zhu H B, Zhang J, Ning Y Q, Qin L, Wang L J 2015 Opt. Express 23 14763
[25]	Chuang S L 1991 Phys. Rev. B: Condens. Matter 43 9649
[26]	Chuang S L 1995 Physics of Optoelectronic Devices (1st Ed.) (New York: Wiley) pp124-192
[27]	Iga K, Koyama F, Kinoshita S 1988 IEEE J. Quantum Electron. 24 1845
[28]	Wang X D, Wu X M, Wang Q, Cao Y L, He G R, Tan M Q 2006 Acta Phys. Sin. 55 4983 (in Chinese) [王小东, 吴旭明, 王青, 曹玉莲, 何国荣, 谭满清 2006 物理学报 55 4983]

施引文献

[1]	Iga K, Koyama F, Kinoshita S 1988 IEEE J. Quantum Electron. 24 1845
[2]	Choquette K D, Hou H Q 1997 Proc. IEEE 85 1730
[3]	Koyama F 2008 Proc. SPIE 7135 71350J
[4]	Fryslie S T M, Choquette K D 2015 IEEE Photon. J. 7 1
[5]	Guan B L, Liu X, Jiang X W, Liu C, Xu C 2015 Acta Phys. Sin. 64 164203 (in Chinese) [关宝璐, 刘欣, 江孝伟, 刘储, 徐晨 2015 物理学报 64 164203]
[6]	Larsson A 2011 IEEE J. Select. Top. Quantum. Electron. 17 1552
[7]	Crowley M T, Kovanis V, Lester L F 2012 IEEE Photon. J. 4 565
[8]	Jensen J B, Rodes R, Caballero A, Ning C, Zibar D, Monroy I T 2014 IEEE/OSA J. Lightwave Tech. 32 1423
[9]	Nguyen C T 2007 IEEE Tran. Ultrason. Ferro. Freq. Control 54 251
[10]	Geppert L 2005 IEEE Spect. 42 20
[11]	Knappe S, Schwindt P D D, Gerginov V, Shah V, Liew L, Moreland J, Robinson H G, Hollberg L, Kitching J 2006 J. Opt. A: Pure Appl. Opt. 8 S318
[12]	Douahi A, Nieradko L, Beugnot J C, Dziuban J, Maillote H, Guerandel S, Moraja M, Gorecki C, Giordano V 2007 Electron. Lett. 43 33
[13]	Ptremand Y, Affolderbach C, Straessle R, Pellaton M, Briand D, Mileti G, Rooij N F D 2012 J. Micromech. Microeng. 22 025013
[14]	Ermak S V, Semenov V V, Piatyshev E N, Kazakin A N, Komarevtsev I M, Velichko E N, Davydov V V, Petrenko M V 2015 St. Petersburg Polytech. Univ. J. Phys. Math. 1 37
[15]	Vanier J 2005 Appl. Phys. B: Laser. Opt. 81 421
[16]	DeNatale J F, Borwick R L, Tsai C, Stupar P A 2008 Proceedings of 2008 IEEE/ION Position, Location and Navigation Symposium Monterey, California, U.S.A., May 5-8, 2008 p67
[17]	Lutwak R 2009 Proceedings of 2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time Forum Besanon, France, Apiral 20-24, 2009 p573
[18]	Blokhin S A, Lott J A, N. N. Ledentsov, Bimberg D 2011 Proceedings of 2011 Asia Communications and Photonics Conference and Exhibition Shanghai, China, November 13-16, 2011 p1
[19]	Serkland D K, Geib K M, Lutwak R, Garvey R M, Varghese M, Mescher M 2006 Proc. SPIE 6132 613208
[20]	Al-Samaneh A, Bou Sanayeh M, Renz S, Wahl D, Michalzik R 2011 IEEE Photon. Tech. Lett. 23 1049
[21]	Gruet F, Al-Samaneh A, Kroemer E, Bimboes L, Miletic D, Affolderbach C, Wahl D, Boudot R 2013 Opt. Express 21 5781
[22]	Zhang J, Ning Y Q, Zeng Y G, Zhang J W, Zhang J L, Fu X H, Tong C Z, Wang L J 2013 Laser Phys. Lett. 10 045802
[23]	Zhang J W, Ning Y Q, Zhang X, Zeng Y G, Zhang J, Liu Y, Qin L, Wang L J 2013 Chin. Laser J. 40 0502001 (in Chinese) [张建伟, 宁永强, 张星, 曾玉刚, 张建, 刘云, 秦莉, 王立军 2013 中国激光 40 0502001]
[24]	Zhang J W, Zhang X, Zhu H B, Zhang J, Ning Y Q, Qin L, Wang L J 2015 Opt. Express 23 14763
[25]	Chuang S L 1991 Phys. Rev. B: Condens. Matter 43 9649
[26]	Chuang S L 1995 Physics of Optoelectronic Devices (1st Ed.) (New York: Wiley) pp124-192
[27]	Iga K, Koyama F, Kinoshita S 1988 IEEE J. Quantum Electron. 24 1845
[28]	Wang X D, Wu X M, Wang Q, Cao Y L, He G R, Tan M Q 2006 Acta Phys. Sin. 55 4983 (in Chinese) [王小东, 吴旭明, 王青, 曹玉莲, 何国荣, 谭满清 2006 物理学报 55 4983]

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