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      1 mJ pulse bursts from a Yb-doped fiber amplifier

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      Author
      Kalaycıoğlu, Hamit
      Eldeniz, Y. B.
      Akçaalan, Önder
      Yavaş Seydi
      Gürel, Kutan
      Efe, M.
      İlday, Ömer Fatih
      Date
      2012-05
      Source Title
      Optics Letters
      Print ISSN
      0146-9592
      Electronic ISSN
      1539-4794
      Publisher
      Optical Society of America
      Volume
      37
      Issue
      13
      Pages
      2586 - 2588
      Language
      English
      Type
      Article
      Item Usage Stats
      474
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      212
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      Abstract
      We demonstrate burst-mode operation of a polarization-maintaining Yb-doped fiber amplifier capable of generating 60 μJ pulses within bursts of 11 pulses with extremely uniform energy distribution facilitated by a novel feedback mechanism shaping the seed of the burst-mode amplifier. The burst energy can be scaled up to 1 mJ, comprising 25 pulses with 40 μJ average individual energy. The amplifier is synchronously pulse pumped to minimize amplified spontaneous emission between the bursts. Pulse propagation is entirely in fiber and fiber-integrated components until the grating compressor, which allows for highly robust operation. The burst repetition rate is set to 1 kHz and spacing between individual pulses is 10 ns. The 40 μJ pulses are externally compressible to a full width at half-maximum of 600 fs. However, due to the substantial pedestal of the compressed pulses, the effective pulse duration is longer, estimated to be 1.2 ps.
      Keywords
      Amplified spontaneous emissions
      Burst repetition rate
      Burst-mode
      Burst-mode operation
      Compressed pulse
      Energy distributions
      Feedback mechanisms
      Grating compressors
      In-fiber
      Polarization maintaining
      Pulse durations
      Pulse propagation
      Robust operation
      Fiber amplifiers
      Fibers
      Ytterbium
      Optical pumping
      Permalink
      http://hdl.handle.net/11693/21418
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OL.37.002586
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