15 W single frequency optically pumped semiconductor laser with sub-megahertz linewidth

Alexandre Laurain, Cody Mart, Jorg Hader, Jerome V Moloney, Bernardette Kunert, Wolfgang Stolz

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

We report on a single frequency optically pumped semiconductor laser exhibiting an output power of 15 W in continuous wave operation. The GaAs-based structure presents an emission wavelength of 1020 nm and a tuning range > 15 nm, with a continuous tunability of 9 GHz. The TEM00 output beam exhibits very low transverse phase fluctuations across the entire mode, leading to a beam quality M2<1.2. A free-running laser linewidth of 21 kHz has been deduced from frequency noise measurements for a sampling time of 1 ms and increases to 995 kHz for a sampling time of 1 s.

Original languageEnglish (US)
Article number6657739
Pages (from-to)131-133
Number of pages3
JournalIEEE Photonics Technology Letters
Volume26
Issue number2
DOIs
Publication statusPublished - Jan 15 2014

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Keywords

  • coherence
  • high power
  • linewidth
  • OPSL
  • semiconductor
  • single frequency
  • VECSEL

ASJC Scopus subject areas

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

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