Paper Infomation
MOPA Structured Tm-doped Fiber Amplifier
Full Text(PDF, 1149KB)
Author: Yuli Song, Lingcong Zhang, Yi Xu, Debo Huang, Junqing Zhao, Chunyu Guo, Geguo Du
Abstract: Tm-doped fiber amplifier in MOPA structure has been studied in details in this paper; specifically, the laser in MOPA takes the primary amplification, of which the gain fiber in seed part is a domestic made Tm-doped double-clad silica fiber with the length 1.7 m, while that in amplification is the same kind with length 1.9 m. The pump coupled efficiency of seed laser has been estimated, along with the analysis on the characteristics of the seed laser’s pulse as well as the reason of low efficiency in seed part, obtaining high quality laser with pulse in minimum width 167 ns; in addition, in amplification, comparison of the average power output, magnification and power conversion efficiency has been made in the condition of the output end with or without the dichroic mirror being HT(95%) at 2 μm and HR at 790 nm; leading to the pulse laser with maximum average power output 5.27 W under the positive condition, that is, the output end with the dichroic mirror being HT(95%) at 2 μm and HR at 790 nm.
Keywords: Tm-doped Fiber Amplifier; Seed Source; Amplified Part; MOPA
References:
[1] Fabian Stutzki, Florian Jansen, Cesar Jauregui, et al.. “2.4mJ, 33W Q-switched Tm-doped fiber laser with near diffration-limited beam quality.” Optics Letters, Ianuary 15,2013.38(2):97-99
[2] P. Kadwani, N. Modsching, R. Andrew Sims, et al. “Q-switched thulium-doped photonic crystal fiber laser.” Optics Letters, May 15,2012.37(10):1664-1666
[3] Yulong Tang, Lin Xu,Yi Yang, et al.“High-power gain-switched Tm3+ -doped fiber laser.” Optics Express, October 25,2010.18(22):22964-22972
[4] Christian Gaida, Pankaj Kadwani, Lasse Leick, et al. “CW-lasting and amplification in Tm3+ -doped photonic crystal fiber rod.” Optics Letters, November 1,2012.37(21):4513-4515
[5] Jianfeng Wu, Zhidong, Jie Zong, et al. “Highly efficient high-power thulium-doped germanate glass fiber laser.” Optics Letters, 2007, 32(6):638-640
[6] M. Meleshkevich, N. Platonov, D. Gapontsev, et al. “415 W Single-Mode CW thulium fiber laser in all-fiber farmat.”CLEO/Europe 2007, post-deadline paper CP2-3-Thu.
[7] Thomas Ehrenreich, Ryan Leveille, Imtiaz Majid, et al. “1KW, all-glass Tm: fiber laser.” Proceeding of SPIE, 2010, 7580:16
[8] Jihong Geng, Qing Wang, Zack Jiang, et al. “Kilowatt-peak-power, single-frequency, pulsed fiber laser near 2μm.” Optics Letters, 2011, 36(12):2293-2295
[9] Lingcong Zhang, Geguo Du, Junqing Zhao, et al. “Adjustable pulse width thulium-doped Q-switched double-clad fiber laser.” Journal of Applied Optics, 2013, 36(2):363-367
[10] Geguo Du, Hui Hu, Peiguang Yan, et al. “Experiment study on tunable thulium-doped double-cladding fiber laser.” Journal of Shenzhen University Science and Engineering, 2011, 28(2):105-108
[11] Junqing Zhao, Geguo Du, Lingcong Zhang, et al.“ Experiment studies on double-end pumped thulium-doped fiber laser.” Applied Laser, 2011, 31(4):332-337
[12] Lei Zhou, Jiping Ning, Weiqing Zhang, et al.“All-fiber high power Er/Yb co-doped double clad fiber amplifier.”Chinese Journal of Lasers, 2009, 36(7):1880-1885