Cavity-augmented frequency tripling of a continuous wave mode-locked laser

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10 Citations (Scopus)

Abstract

We present a model and experimental investigation of a singly-resonant optical cavity to enhance the nonlinear conversion efficiency of a continuous wave mode-locked all-solid-state laser source to produce an efficient source of ultraviolet radiation. For input pulses of approximately 33 ps duration at 4.4 ns intervals, our model predicts greater than 30% conversion from fundamental to third harmonic which is particularly attractive for fundamental sources of modest average power. Experimentally, we have achieved overall optical conversion efficiencies from fundamental to third harmonic wavelength typically greater than 11%, compared with less than 0.4% in a single pass geometry. We have measured an average power of 320 mW at λ = 355 nm at picosecond pulse duration, which corresponds to a generated third harmonic average power of 0.5 W.
Original languageEnglish
Pages (from-to)2408-2414
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume34
Issue number16
DOIs
Publication statusPublished - 2001

Keywords

  • optics
  • photonics
  • lasers
  • radiation

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