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Cryogenic nanosecond and picosecond high average and peak power (HAPP) pump lasers for ultrafast applications

Brown, David ; Tornegård, Sten ; Kolis, Joseph

High Power Laser Science and Engineering, 2016, Vol.4 [Peer Reviewed Journal]

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  • Title:
    Cryogenic nanosecond and picosecond high average and peak power (HAPP) pump lasers for ultrafast applications
  • Author: Brown, David ; Tornegård, Sten ; Kolis, Joseph
  • Subjects: Laser Applications ; Cryogenic Lasers ; High-Average-Power Lasers ; High-Peak-Power Lasers ; Ultrafast Lasers ; Yb Lasers
  • Is Part Of: High Power Laser Science and Engineering, 2016, Vol.4
  • Description: Using cryogenic laser technology, it is now possible to design and demonstrate lasers that have concomitant high average and peak powers, with near-diffraction-limited beam quality. We refer to these new laser systems´┐é as HAPP lasers. In this paper, we review important laser crystal materials properties at cryogenic temperature, with an emphasis on Yb lasers, and discuss the important design considerations, including the laser-induced damage threshold, nonlinear effects and thermal effects. A comprehensive model is presented to describe diode pulsed pumping with arbitrary duration and repetition rate, and is used with the Frantz-Nodvik equation to describe, to first order, the performance of HAPP laser systems. A computer code with representative results is also described.
  • Language: English
  • Identifier: ISSN: 20954719 ; E-ISSN: 20523289 ; DOI: 10.1017/hpl.2016.12

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