• DocumentCode
    39444
  • Title

    All-Fiber-Integrated Narrowband Nanosecond Pulsed Tm-Doped Fiber MOPA

  • Author

    Xiong Wang ; Xiaoxi Jin ; Pu Zhou ; Xiaolin Wang ; Hu Xiao ; Zejin Liu

  • Author_Institution
    Coll. of Optoelectron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
  • Volume
    27
  • Issue
    14
  • fYear
    2015
  • fDate
    July15, 15 2015
  • Firstpage
    1473
  • Lastpage
    1476
  • Abstract
    We present a high average power narrowband-pulsed fiber master oscillator power amplifier (MOPA) at 1.971 μm. The linewidth of the pulse trains is broadened to ~1.5 GHz via phase modulation. The repetition rates are 3 and 5 MHz, respectively. The output power of pulse train with 3 MHz repetition rate is 192 W, and the pulsewidth is 51 ns, corresponding to a peak power of 1.11 kW and a pulse energy of 62 μJ. The output power of pulse train with 5 MHz repetition rate is 209 W, and the pulsewidth is 46 ns, corresponding to a peak power of 0.86 kW and a pulse energy of 42 μJ. Higher output power can be achieved by narrowing the pulsewidth to several nanoseconds. To the best of our knowledge, this is the first demonstration on high-power narrowband nanosecondpulsed MOPA near 2 μm with an average power exceeding 200 W.
  • Keywords
    optical fibre amplifiers; optical modulation; phase modulation; power amplifiers; spectral line narrowing; thulium; all-fiber-integrated narrowband nanosecond pulsed Tm-doped fiber MOPA; energy 62 muJ; frequency 1.5 GHz; high average power narrowband-pulsed fiber master oscillator power amplifier; high-power narrowband nanosecond-pulsed MOPA; phase modulation; power 0.86 kW; power 1.11 kW; power 192 W; power 209 W; pulse energy; pulse train linewidth; pulsewidth narrowing; wavelength 1.971 mum; Fiber lasers; Optical fiber amplifiers; Optical fiber polarization; Optimized production technology; Power amplifiers; Power generation; Scattering; Infrared and far-infrared lasers; laser amplifiers; pulsed lasers;
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/LPT.2015.2425892
  • Filename
    7093142