超短时延测量DFB激光器的动态线宽

安颖; 杜振辉; 徐可欣

doi:10.7498/aps.62.174208

摘要

激光器调谐过程中的动态线宽是非常重要的参数, 然而, 当前各种测量方法得到的都是激光器稳定状态下的静态线宽. 本文提出一种对干涉拍信号进行基于局部均值分解的时频分析进而获取激光动态线宽的方法, 通过仿真信号验证了这种时频分析方法提取瞬时相位噪声的有效性; 构建实验系统, 利用10cm路径差产生约0.5ns的超短时延, 提取相位噪声的时频分布, 首次得到了分布反馈半导体激光器在脉冲工作模式下的动态线宽.

关键词:

Abstract

The instantaneous linewidth in the process of tuning is a very important parameter of laser, however only static linewidth in steady state could be obtained by all kinds of measurement at present. So we proposed a method of measuring instantaneous linewidth by time-frequency analysis based on local mean decomposition, and after its validity of extracting the instantaneous phase noise of simulation signal was proved, we set the heterodyne measurement system with ultrashort delay (about 0.5 ns) which came from 10 cm optical path difference. Finally, we not only extracted the time-frequency spectrum of the beat signal’s phase noise power, but also obtained the instantaneous linewidth of distributed-feedback diode laser under the pulse current for the first time so far as we Rnow.

Keywords:

作者及机构信息

1.
天津大学精密测试技术及仪器国家重点实验室, 天津 300072;

2.
河北联合大学信息工程学院, 唐山 063009

基金项目: 国家自然科学基金重点项目(批准号: 60938002);国家重大科学仪器设备开发专项(批准号: 2012YQ06016501)和河北省自然科学基金项目(批准号: F2013209331)资助的课题.

Authors and contacts

1.
State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;

2.
College of Information Engineering, Hebei United University, Tangshan 063009, China

Funds: Project supported by the State Key Program of National Natural Science of China (Grant No. 60938002), the Special-funded Program on National Key Scientific Instunments and Equipment Development of China (Grant No. 2012YQ06016501), and the Natural Science Foundation of Hebei Province, China (Grant No. F2013209331).

参考文献

[1]	Okoshi T, Kikuchi K, Nakayama A 1980 Electron. Lett. 16 630
[2]	Richter L E, Mandelberg H I, Kruger M S 1986 IEEE J. Quantum Electron. 22 2070
[3]	Daeson J W, Namkyoo P, Kerry J V 1992 IEEE Photon. Technol. 4 1063
[4]	Ludvigsen H, Tossavainen M, Kaivola M 1998 Opt. Commun. 155 180
[5]	Turner L D, Weber K P, Hawthorn C J, Scholten R E 2002 Opt. Commun. 201 391
[6]	Han M, Wang A 2005 Appl. Phys. B 81 53
[7]	Camatel S, Ferrero V 2008 J. Lightwave Technol. 26 3048
[8]	Zhou W, Chong K M, Guo H 2008 Phys. Lett. A 372 4327
[9]	Domenico G D, Schilt S, Thomann P 2010 Appl. Opt. 49 4801
[10]	Bartalini S, Borri S, Galli I, Giusfredi G, Mazzotti D, Edamura T 2011 Opt. Express 19 17996
[11]	Kikuchi K 2012 Opt. Express. 20 5291
[12]	Liu J W, Du Z H, Qi R B, Xu K X 2012 Nanotechnol. Precision Eng. 10 332 (in Chinese) [刘景旺, 杜振辉, 齐汝宾, 徐可欣 2012 纳米技术与精密工程 10 332]
[13]	Huang N E, Shen Z, Long S R 1998 Procedings of Royal Society A 454 903
[14]	Smith J S 2005 J. R. Soc. Interface 2 443
[15]	Henry C H 1982 IEEE J. Quantum Electron. 18 259
[16]	Wang H Y, Qiu T S, Chen Z 2008 Nonstationary Random Signal Analysis and Processing (Second Edition) (Bei Jing: National Defense Industry Press) p5 (in Chinese) [王宏禹, 邱天爽, 陈喆 2008 非平稳随机信号分析与处理 (第2版) (北京: 国防工业出版社) 第5页]
[17]	Zhang X D 2002 Modern Signal Processing (Second Edition) (Bei Jing: Thinghua University Press) p350 (in Chinese) [张贤达 2002 现代信号处理 (第2版) (北京: 清华大学出版社) 第350页]

施引文献

[1]	Okoshi T, Kikuchi K, Nakayama A 1980 Electron. Lett. 16 630
[2]	Richter L E, Mandelberg H I, Kruger M S 1986 IEEE J. Quantum Electron. 22 2070
[3]	Daeson J W, Namkyoo P, Kerry J V 1992 IEEE Photon. Technol. 4 1063
[4]	Ludvigsen H, Tossavainen M, Kaivola M 1998 Opt. Commun. 155 180
[5]	Turner L D, Weber K P, Hawthorn C J, Scholten R E 2002 Opt. Commun. 201 391
[6]	Han M, Wang A 2005 Appl. Phys. B 81 53
[7]	Camatel S, Ferrero V 2008 J. Lightwave Technol. 26 3048
[8]	Zhou W, Chong K M, Guo H 2008 Phys. Lett. A 372 4327
[9]	Domenico G D, Schilt S, Thomann P 2010 Appl. Opt. 49 4801
[10]	Bartalini S, Borri S, Galli I, Giusfredi G, Mazzotti D, Edamura T 2011 Opt. Express 19 17996
[11]	Kikuchi K 2012 Opt. Express. 20 5291
[12]	Liu J W, Du Z H, Qi R B, Xu K X 2012 Nanotechnol. Precision Eng. 10 332 (in Chinese) [刘景旺, 杜振辉, 齐汝宾, 徐可欣 2012 纳米技术与精密工程 10 332]
[13]	Huang N E, Shen Z, Long S R 1998 Procedings of Royal Society A 454 903
[14]	Smith J S 2005 J. R. Soc. Interface 2 443
[15]	Henry C H 1982 IEEE J. Quantum Electron. 18 259
[16]	Wang H Y, Qiu T S, Chen Z 2008 Nonstationary Random Signal Analysis and Processing (Second Edition) (Bei Jing: National Defense Industry Press) p5 (in Chinese) [王宏禹, 邱天爽, 陈喆 2008 非平稳随机信号分析与处理 (第2版) (北京: 国防工业出版社) 第5页]
[17]	Zhang X D 2002 Modern Signal Processing (Second Edition) (Bei Jing: Thinghua University Press) p350 (in Chinese) [张贤达 2002 现代信号处理 (第2版) (北京: 清华大学出版社) 第350页]

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