宽波长范围窄线宽波长连续可调的光纤激光器
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摘要
研制了一种宽波长范围窄线宽波长连续可调的光纤激光器,激光器基于环形腔结构,采用980nm的半导体激光器作为泵浦源,掺铒光纤作为增益介质,使用一段未泵浦的保偏掺铒光纤作为饱和吸收体压窄线宽。使用光纤法布里-珀罗滤波器作为选频器件,通过调节光纤其驱动电压实现光纤激光器的波长扫描。利用激光器的相干长度与干涉仪干涉条纹的关系动态测量激光器的光谱线宽,最终得到了扫描范围为1515.1～1588.6nm,线宽小于0.025nm的波长连续可调的光谱输出。
A continuous wide wavelength scanning fiber laser with narrow linewidth is developed.The laser is based on a ring cavity structure,in which a 980 nm semiconductor laser is used as the pump source,an erbium-doped fiber(Nufern,EDFC-980-HP)is used as the gain medium,an unpumped erbium-doped fiber(IXFiber,EDFC-980-PM)is used as the saturable absorber to compress the linewidth.A Fabry-Perot(F-P)tunable filter is used as the wavelength selector,the wavelength scanning of the fiber laser is achieved by changing the voltage applied on the tunable filter.The spectral linewidth of the laser is measured by the relationship between the coherent length of the laser and interference fringes of the interferometer,the wavelength scanning range from 1514.8nm to 1586.6nm and the linewidth less than 0.025 nm are realized finally.
A continuous wide wavelength scanning fiber laser with narrow linewidth is developed.The laser is based on a ring cavity structure,in which a 980 nm semiconductor laser is used as the pump source,an erbium-doped fiber(Nufern,EDFC-980-HP)is used as the gain medium,an unpumped erbium-doped fiber(IXFiber,EDFC-980-PM)is used as the saturable absorber to compress the linewidth.A Fabry-Perot(F-P)tunable filter is used as the wavelength selector,the wavelength scanning of the fiber laser is achieved by changing the voltage applied on the tunable filter.The spectral linewidth of the laser is measured by the relationship between the coherent length of the laser and interference fringes of the interferometer,the wavelength scanning range from 1514.8nm to 1586.6nm and the linewidth less than 0.025 nm are realized finally.
引文
[1]黄邦菊.高速宽波长范围可调谐光纤激光器[J].光学技术,2016,42(5):400—402.Huang Bangju.A high rate broadband wavelength tunable fiber laser[J].Optical Technique,2016,42(5):400—402.
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[8]伍波,刘永智,张谦述,等.基于光纤光栅法布里-珀罗腔的高效窄线宽光纤激光器[J].中国激光,2007,34(3):350—353.Wu Bo,Liu Yongzhi,Zhang Qianshu,et al.High efficient and narrow linewidth fiber laser based on fiber grating Fabry-Perot cavity[J].Frontiers of Optoelectronics in China,2007,34(3):350—353.
[9]Wei F,Yang X,Tong Z,et al.Dual-wavelength narrow-linewidth fiber laser based on F-P fiber ring filter[J].Optik-International Journal for Light and Electron Optics,2012,123(11):1026—1029.
[10]欧中华,卢磊,代志勇,等.基于可调F-P滤波器的线性波长扫描窄线宽光纤激光器[J].半导体光电,2014,35(1):10—14.Ou Zhonghua,Lu Lei,Dai Zhiyong,et al.Linear wavelengthscanning narrow linewidth Er3+-doped fiber laser based on tunable F-P cavity filter[J].Semiconductor Optoelectronics,2014,35(1):10—14.
[11]Meng Z,Stewart G,Whitenett G.Stable single-mode operation of a narrow-linewidth,linearly polarized,erbium-fiber ring laser using a saturable absorber[J].Journal of Lightwave Technology,2006,24(5):2179—2183.
[12]江毅.高级光纤传感技术[M].北京:科学出版社2009:153.Jiang Yi.Advanced optical fiber sensing technology[M].Beijing:Science Press,2009:153.
[13]Frisken S J.Transient Bragg reflection gratings in erbiumdoped fiber amplifiers[J].Optics Letters,1992,17(24):1776.
[14]王衍勇.宽带掺铒光纤放大器关键技术研究[D].天津:天津天津大学,2004.Wang Yanyong,Pivotal techniques of broadband erbium-doped fiber amplifier(EDFA)[D].Tianjin:Tianjin Tianjin University,2004.
[15]俞力,宋跃江,张旭苹.单纵模、波长可开关的线性腔光纤激光器[J].中国激光,2009,35(7):1455—1458.Yu Li,Song Yuejiang,Zhang Xuping.Single-longitudinalmode and Wavelength-switchable fiber laser with linear cavity[J].Chinese Journal of Lasers,2008,36(7):1890—1893.
[16]魏志鹏.基于延时自外差法的窄线宽激光谱宽测量[J].光学与光电技术,2015,13(3):38—58.Wei Zhipeng.Measurement of the narrow line width laser spectrum based on the delayed Self-heterodyne[J].Optics&Optoelectronic Technology,2015,13(3):38—58.
[17]贾豫东,欧攀,杨远洪,等.短光纤延时自外差法测量窄线宽激光器线宽[J].北京航空航天大学学报,2008,34(5):568—571.Jia Yudong,Ou Pan,Yang Yuanhong,et al.Short fibre delayed self-heterodyne interferometer for ultranarrow laser linewidth measurement[J].Journal of Beijing University of Aeronautics&Astronautics,2008,34(5):568—571.
[2]张兵.可调谐光栅滤波器的改进性研究[D].武汉:武汉华中科技大学,2007.Zhang Bing.Research on improvement of tunable gating filter[D].Wuhan:Wuhan Huazhong University of Science and Technology,2007.
[3]张健生.可调谐环形腔掺铒光纤激光器[D].吉林:长春吉林大学,2005.Zhang Jiansheng.Wavelength tunable erbium-doped fiber ring laser[D].Jilin:Changchun Jilin University,2005.
[4]方秀丽,童峥嵘,曹晔,等.采用F-P光纤环滤波器的窄线宽环形腔光纤激光器[J].红外与激光工程,2013,42(2):329—333.Fang Xiuli,Tong Zhengrong,Cao Ye,et al.Narrow linewidth ring cavity fiber laser using F-P fiber ring filter[J].Infrared&Laser Engineering,2013,42(2):329—333.
[5]狄俊安,周赢武.一种新型的窄线宽光纤滤波器特性的研究[J].福建工程学院学报,2010,08(3):243—246.Di Junan,Zhou Yingwu.Study on the characteristics of a novel optical narrow-linewidth filter[J].Journal of Fujian University of Technology,2010,08(3):243—246.
[6]王大量,王翠云,徐连宇,等.光纤激光器共腔法纵模选择技术[J].红外与激光工程,2011,40(6):1044—1048.Wang Daliang,Wang Cuiyun,Xu Lianyu,et al.Fiber laser longitudinal mode selection using common resonant cavity[J].Infrared&Laser Engineering,2011,40(6):1044—1048.
[7]李永亮,姜会林,邢宇,等.复合腔和频554.8nm黄-绿光激光器[J].红外与激光工程,2009,38(5):869—872.Li Yongliang,Jiang Huilin,Xing Yu,et al.Doubly resonant intra-cavity sum-frequency yellow-green laser at 554.8nm[J].Infrared&Laser Engineering,2009,38(5):869—872.
[8]伍波,刘永智,张谦述,等.基于光纤光栅法布里-珀罗腔的高效窄线宽光纤激光器[J].中国激光,2007,34(3):350—353.Wu Bo,Liu Yongzhi,Zhang Qianshu,et al.High efficient and narrow linewidth fiber laser based on fiber grating Fabry-Perot cavity[J].Frontiers of Optoelectronics in China,2007,34(3):350—353.
[9]Wei F,Yang X,Tong Z,et al.Dual-wavelength narrow-linewidth fiber laser based on F-P fiber ring filter[J].Optik-International Journal for Light and Electron Optics,2012,123(11):1026—1029.
[10]欧中华,卢磊,代志勇,等.基于可调F-P滤波器的线性波长扫描窄线宽光纤激光器[J].半导体光电,2014,35(1):10—14.Ou Zhonghua,Lu Lei,Dai Zhiyong,et al.Linear wavelengthscanning narrow linewidth Er3+-doped fiber laser based on tunable F-P cavity filter[J].Semiconductor Optoelectronics,2014,35(1):10—14.
[11]Meng Z,Stewart G,Whitenett G.Stable single-mode operation of a narrow-linewidth,linearly polarized,erbium-fiber ring laser using a saturable absorber[J].Journal of Lightwave Technology,2006,24(5):2179—2183.
[12]江毅.高级光纤传感技术[M].北京:科学出版社2009:153.Jiang Yi.Advanced optical fiber sensing technology[M].Beijing:Science Press,2009:153.
[13]Frisken S J.Transient Bragg reflection gratings in erbiumdoped fiber amplifiers[J].Optics Letters,1992,17(24):1776.
[14]王衍勇.宽带掺铒光纤放大器关键技术研究[D].天津:天津天津大学,2004.Wang Yanyong,Pivotal techniques of broadband erbium-doped fiber amplifier(EDFA)[D].Tianjin:Tianjin Tianjin University,2004.
[15]俞力,宋跃江,张旭苹.单纵模、波长可开关的线性腔光纤激光器[J].中国激光,2009,35(7):1455—1458.Yu Li,Song Yuejiang,Zhang Xuping.Single-longitudinalmode and Wavelength-switchable fiber laser with linear cavity[J].Chinese Journal of Lasers,2008,36(7):1890—1893.
[16]魏志鹏.基于延时自外差法的窄线宽激光谱宽测量[J].光学与光电技术,2015,13(3):38—58.Wei Zhipeng.Measurement of the narrow line width laser spectrum based on the delayed Self-heterodyne[J].Optics&Optoelectronic Technology,2015,13(3):38—58.
[17]贾豫东,欧攀,杨远洪,等.短光纤延时自外差法测量窄线宽激光器线宽[J].北京航空航天大学学报,2008,34(5):568—571.Jia Yudong,Ou Pan,Yang Yuanhong,et al.Short fibre delayed self-heterodyne interferometer for ultranarrow laser linewidth measurement[J].Journal of Beijing University of Aeronautics&Astronautics,2008,34(5):568—571.