Intensity and frequency noise properties of multi-Watt single frequency VECSEL with and without active stabilization

Alexandre Laurain, Jorg Hader, Stephan W. Koch, Wolfgang Stolz, Jerome V. Moloney

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We demonstrate the highest free running single frequency power from a single chip VECSEL reported to date, with more than 15W in continuous operation at room temperature. The GaAs-based structure presents an emission wavelength of 1020nm and a tuning range <15nm, with a continuous tunability of 9GHz. The TEM00 output beam exhibits very low transverse phase fluctuations across the entire mode, leading to a beam quality M2 <1.2. To identify and reduce the different sources of noise, the relative intensity noise and frequency noise spectral density are investigated and the intensity and the frequency of the laser were independently stabilized. The laser frequency is controlled and tuned varying the cavity length using a high bandwidth piezoelectric element while intensity fluctuations are reduced by varying the pump intensity. Intrinsic and stabilized frequency and intensity noise are compared.

Original languageEnglish (US)
Title of host publicationVertical External Cavity Surface Emitting Lasers (VECSELs) IV
PublisherSPIE
ISBN (Print)9780819498793
DOIs
StatePublished - Jan 1 2014
EventVertical External Cavity Surface Emitting Lasers (VECSELs) IV - San Francisco, CA, United States
Duration: Feb 2 2014Feb 4 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8966
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherVertical External Cavity Surface Emitting Lasers (VECSELs) IV
CountryUnited States
CitySan Francisco, CA
Period2/2/142/4/14

Keywords

  • High power
  • Narrow linewidth
  • OPSL
  • Optical noise
  • Semiconductor
  • Stabilization
  • VECSEL

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Laurain, A., Hader, J., Koch, S. W., Stolz, W., & Moloney, J. V. (2014). Intensity and frequency noise properties of multi-Watt single frequency VECSEL with and without active stabilization. In Vertical External Cavity Surface Emitting Lasers (VECSELs) IV [89660A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8966). SPIE. https://doi.org/10.1117/12.2037976