Intracavity laser cooling using a VECSEL

Alexander R. Albrecht, Denis V. Seletskiy, Jeffrey G. Cederberg, Alberto Di Lieto, Mauro Tonelli, Jerome V. Moloney, Ganesh Balakrishnan, Mansoor Sheik-Bahae

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

5 Scopus citations


We report on the first observation of intracavity laser cooling inside of a vertical external-cavity surface-emitting laser (VECSEL). A Yb:YLF crystal is placed under Brewster angle inside the cavity of an InGaAs quantum well VECSEL emitting around 1030 nm. With the crystal in air, we observed cooling by about 0.5 degrees. By placing the sample and cavity end mirror inside a vacuum chamber, with the window also at Brewster angle to the laser mode, cooling by 20 degrees has been realized. Furthermore, the development of a compact and efficient integrated cryocooler device is underway.

Original languageEnglish (US)
Title of host publicationLaser Refrigeration of Solids V
StatePublished - 2012
EventLaser Refrigeration of Solids V - San Francisco, CA, United States
Duration: Jan 25 2012Jan 26 2012

Publication series

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


OtherLaser Refrigeration of Solids V
Country/TerritoryUnited States
CitySan Francisco, CA


  • Cryocooler
  • Laser cooling of solids
  • Laser refrigeration

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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