高功率多模铒镱共掺双包层光纤激光器的研究
Research of high-power multi-mode Er3+/Yb3+ co-doped double-cladding optical fiber lasers
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摘要: 为了获得尽可能高的输出功率以满足应用需求,分别以实验和数值分析的方法对铒镱共掺双包层光纤激光器的性能进行了进一步研究.实验上,采用加拿大国家光学研究所生产的EY805型铒镱共掺双包层多模光纤作为增益介质,描述了输出功率随入纤抽运功率以及光纤长度的变化,在光纤长度为1.8m的情况下,获得了3.5W的最大输出功率,光-光转换效率达31.8%.基于速率和传输方程,对该铒镱共掺双包层光纤激光器进行了数值模拟,在相同光纤长度下,计算的最大输出功率约.W,光-光转换效率0%,比实验结果要高.讨论了进一步对该光纤激光器性能进行优化的措施.该结果对于促进铒镱共掺双包层光纤激光器的实用化及其性能改进具有重要意义.Abstract: In order to achieve much higher output power to satisfy the application requirements,the performances of erbium/ytterbium co-doped double-cladding fiber lasers(EY-DCFLs) are studied experimentally and theoretically.By using the EY805 model erbium/ytterbium co-doped multi-mode double-cladding fiber manufactured by INO,Canada as the gain medium,it is described that the output power is a function of the input pump power and fiber length.The maximum output power is about 3.5W by using a 1.8m fiber,with an optical to optical conversion efficiency of 31.8%.Numerical analysis of this EY-DCFL is also performed based on the rate and propagation equations.The calculated output powers of about 4.4W and conversion efficiency of 40% for the same fiber are a little larger than the experimental results.Then further optimization measures of the EY-DCFL are discussed,such as preparing of the fiber-end well,adding dichroic mirror at the output end and making fiber Bragg gratings directly in the fiber core.The above results are very important for the utilization and performance improvement of EY-DCFL.
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Key words:
- lasers /
- double-cladding fiber /
- erbium/ytterbium co-doped /
- cladding pump /
- numerical simulation
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[1] NILSSON J,ALAM S,ALVAREZ-CHAVEZ J A et al.High-power and tunable operation of erbium-ytterbium co-doped cladding-pumped fiber lasers[J].IEEE J Q E,2003,39(8):987~994. [2] DONG Sh F,ZHAO Sh H,ZHUANG M L.Experiments and analysis of double-cladding erbium-ytterbium co-doped optical fiber lasers[A].Materials,Active Devices,and Optical Amplifiers[C].Wuhan:SPIE,2003.214~220(in Chinese). [3] ZHAN Sh B,ZHAO Sh H,DONG Sh F et al.The experimental study of the Er3+/Yb3+ co-doped double clad fiber laser[J].Laser Technology,2003,27(6):606~608(in Chinese). [4] GOLDBERG L,KOPLOW J.Compact,side-pumped 25dBm Er/Yb co-doped double cladding fiber amplifier[J].Electron Lett,1998,34(21):2027~2028. [5] DONG Sh F,ZHAO Sh H,ZHAN Sh B et al.Operation principles and numerical analysis of double-cladding erbium-ytterbium co-doped optical fiber amplifiers[A].High-power Lasers and Applications Ⅱ[C].Shanghai:SPIE,2002.28~36(in Chinese). [6] XIA G J,DUAN J H,ZHAO Sh H et al.Performance study on double cladding Er-Yb co-doped fiber amplifiers with a reflector[J].Laser Technology,2004,28(1):12~15(in Chinese). [7] ZHUANG M L,ZHAO Sh H,DONG Sh F.et al.Numerical analysis of the population distribution characteristics in Er3+-Yb3+ co-doped double-clad fiber amplifiers[J].Laser Technology,2004,28(4):379~382(in Chinese). [8] ZHAN Sh B,ZHAO Sh H,DONG Sh F et al.Effects of suppressing energy transfer upconversion in Er3+/Yb3+ codoped fiber laser[J].Laser Infrared,2002,32(6):400~403(in Chinese). [9] DING M,CHEO D K.Effects of Yb:Er-codoping on suppressing self-pulsing in Er-doped fiber lasers[J].IEEE Photonics Technology Letters,1997,9(3):324~326. [10] ZHAO Sh H,ZHAN Sh B,DONG Sh F et al.The effects of suppressing for self-pulsing behavior in Er3+-doped and Er3+/Yb3+ co-doped fiber laser[J].Journal of Optoelectronics·Laser,2003,14(6):577~580(in Chinese). [11] DONG Sh F,CHENG G H,YANG L Zh et al.Studies on the pump coupling and laser feedback in double cladding fiber lasers[J].Laser Technology,2003,27(6):523~525(in Chinese).
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