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@ARTICLE{Canbaz:166593,
      author       = {Canbaz, Ferda and Beyatli, Ersen and Chen, Li-Jin and
                      Sennaroglu, Alphan and Kaertner, Franz and Demirbas, Umit},
      title        = {{H}ighly efficient and robust operation of {K}err-lens
                      mode-locked {C}r:{L}i{SAF} lasers using gain-matched output
                      couplers},
      journal      = {Optics letters},
      volume       = {39},
      number       = {2},
      issn         = {1539-4794},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {DESY-2014-01465},
      pages        = {327 - 330},
      year         = {2014},
      abstract     = {We present efficient and robust Kerr-lens mode locking
                      (KLM) of a diode-pumped Cr:LiSAF laser using a gain-matched
                      output coupler (GMOC). An inexpensive, battery-powered 660
                      nm single-spatial-mode diode was used as the pump source.
                      GMOC enhances the effective self-amplitude modulation depth
                      by reducing the gain-filtering effect in broadband KLM
                      operation to provide significant improvement in efficiency
                      and robustness. Pulsing can be initiated without careful
                      cavity alignment and is sustained for hours. 13 fs pulses
                      with an average power of 25 mW have been generated using
                      only 120 mW of pump power. The corresponding pulse energy
                      and peak power is 200 pJ and 15 kW for the 126 MHz
                      repetition rate cavity. Optical-to-optical conversion
                      efficiency of the system is $21\%,$ which represents an
                      order of magnitude improvement in reported efficiencies for
                      such diode-pumped ultrashort-pulse KLM Cr:LiSAF lasers. The
                      obtainable pulse width is currently limited by the
                      dispersion bandwidth of the available optics and can be
                      potentially reduced to below 7 fs.},
      cin          = {FS-CFEL-2},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-CFEL-2-20120731},
      pnm          = {Experiments at CFEL (POF2-544)},
      pid          = {G:(DE-H253)POF2-CFEL-Exp.-20130405},
      experiment   = {EXP:(DE-H253)CFEL-Exp-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000329906900038},
      pubmed       = {pmid:24562138},
      doi          = {10.1364/OL.39.000327},
      url          = {https://bib-pubdb1.desy.de/record/166593},
}