All-intracavity fourth harmonic generation in a passively mode locked VECSEL for ultrafast UV emission

Jason T. Meyer, Michal L. Lukowski, Chris Hessenius, Ewan M. Wright, Mahmoud Fallahi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We demonstrate all-intracavity fourth harmonic generation in an ultrafast passively mode locked vertical external cavity surface emitting laser (VECSEL). This novel laser cavity design utilizes a high Q Z-cavity resonator to buildup the circulating power of the second harmonic for frequency quadrupling the fundamental 1060 nm to 265 nm. The demonstrated UV output has an average power of 525 μW, pulse width of 3 ps, and a repetition rate of 510 MHz. This results in a peak pulse power of 250–300 mW over a 30 min duration without active stabilization equipment.

Original languageEnglish (US)
Article number127255
JournalOptics Communications
Volume499
DOIs
StatePublished - Nov 15 2021

Keywords

  • Nonlinear optics
  • Passive mode locking
  • Second harmonic generation
  • Ultrafast laser
  • VECSEL

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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