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@ARTICLE{Chung:400022,
      author       = {Chung, Hsiang-Yu and Cao, Qian and Song, Liwei and
                      Kärtner, Franz X. and Chang, Guoqing and Liu, Wei},
      title        = {{M}egawatt peak power tunable femtosecond source based on
                      self-phase modulation enabled spectral selection},
      journal      = {Optics express},
      volume       = {26},
      number       = {3},
      issn         = {1094-4087},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {PUBDB-2018-01075},
      pages        = {3684-3695},
      year         = {2018},
      note         = {© 2018 Optical Society of America under the terms of the
                      OSA Open Access Publishing Agreement},
      abstract     = {Wavelength widely tunable femtosecond sources can be
                      implemented by optically filtering the leftmost/rightmost
                      spectral lobes of a broadened spectrum due to self-phase
                      modulation (SPM) dominated fiber-optic nonlinearities. We
                      numerically and experimentally investigate the feasibility
                      of implementing such a tunable source inside optical fibers
                      with negative group-velocity dispersion (GVD). We show that
                      the spectral broadening prior to soliton fission is
                      dominated by SPM and generates well-isolated spectral lobes;
                      filtering the leftmost/rightmost spectral lobes results in
                      energetic femtosecond pulses with the wavelength tuning
                      range more than 400 nm. Employing an ultrafast Er-fiber
                      laser and a dispersion-shifted fiber with negative GVD, we
                      implement an energetic tunable source that produces ~100-fs
                      pulses tunable between 1.3 μm and 1.7 μm with up to ~16-nJ
                      pulse energy. Further energy scaling is achieved by
                      increasing the input pulse energy to ~1-μJ and reducing the
                      fiber length to 1.3 cm. The resulting source can produce
                      >100-nJ femtosecond pulses at 1.3 μm and 1.7 μm with MW
                      level peak power, representing an order of magnitude
                      improvement of our previous results. Such a powerful source
                      covers the 2nd and the 3rd biological transmission window
                      and can facilitate multiphoton deep-tissue imaging.},
      cin          = {FS-CFEL-2 / CFEL-ULOCM / UNI/CUI},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-CFEL-2-20120731 /
                      I:(DE-H253)CFEL-ULOCM-20160928 /
                      $I:(DE-H253)UNI_CUI-20121230$},
      pnm          = {6211 - Extreme States of Matter: From Cold Ions to Hot
                      Plasmas (POF3-621) / VH-NG-804 - Towards Laboratory-Based
                      Ultrafast Bright EUV and X-ray Sources
                      $(2015_IVF-VH-NG-804)$ / HCJRG-201 - Advanced Laser
                      Technologies for Ultrafast Spectroscopy of Quantum Materials
                      $(2015_IFV-HCJRG-201)$ / CUI - Hamburger Zentrum für
                      ultraschnelle Beobachtung (194651731)},
      pid          = {G:(DE-HGF)POF3-6211 / $G:(DE-HGF)2015_IVF-VH-NG-804$ /
                      $G:(DE-HGF)2015_IFV-HCJRG-201$ / G:(GEPRIS)194651731},
      experiment   = {EXP:(DE-H253)CFEL-Exp-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29401895},
      UT           = {WOS:000425365900138},
      doi          = {10.1364/OE.26.003684},
      url          = {https://bib-pubdb1.desy.de/record/400022},
}