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@ARTICLE{Singh:637932,
      author       = {Singh, Neetesh Kumar and Wang, Kai and Garcia-Blanco, Sonia
                      M. and Kärtner, Franz X.},
      title        = {{W}att level continuous-wave laser in silicon photonics},
      journal      = {APL photonics},
      volume       = {10},
      number       = {8},
      issn         = {2378-0967},
      address      = {Melville, NY},
      publisher    = {AIP Publishing},
      reportid     = {PUBDB-2025-03922},
      pages        = {086109},
      year         = {2025},
      abstract     = {High power sources are desired in integrated photonics to
                      utilize their full potential for various applications such
                      as in telecom, medical, and remote sensing. However, the
                      signal power from the integrated photonic sources has been
                      quite limited. One of the main reasons for this is the usage
                      of small optical mode area waveguides, which, although they
                      help in keeping the footprint small and increasing the gain
                      efficiency, limit the energy storage and extraction
                      capability of the signal from an integrated device, thus
                      limiting the output power. By increasing the optical mode
                      area, one allows the photons to interact with a
                      significantly larger number of gain ions, allowing large
                      energy storage and power extraction. In light of this, we
                      show a high-power continuous wave laser based on a recently
                      demonstrated large-mode-area gain waveguide, which requires
                      no external amplifier. The maximum power generated from the
                      distributed Bragg reflector laser is close to 1.35 W with a
                      slope efficiency of more than $50\%,$ and it operates around
                      the long wavelength window (∼1.85 μm) relevant for
                      medical, space, and defense applications. The power level
                      demonstrated here enables silicon photonics based continuous
                      wave light sources comparable to their benchtop counterparts
                      and brings them significantly closer to mass production and
                      deployment for desired applications.},
      cin          = {FS-CFEL-2},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-CFEL-2-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / FEMTOCHIP - FEMTOSECOND LASER ON A CHIP
                      (965124) / DFG project G:(GEPRIS)403188360 -
                      Ultrabreitbandiger Photonisch-Elektronischer
                      Analog-Digital-Wandler (PACE) - Phase 2 (403188360)},
      pid          = {G:(DE-HGF)POF4-631 / G:(EU-Grant)965124 /
                      G:(GEPRIS)403188360},
      experiment   = {EXP:(DE-H253)CFEL-Exp-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1063/5.0271250},
      url          = {https://bib-pubdb1.desy.de/record/637932},
}