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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 9 — Sep. 1, 2014
  • pp: 2116–2120

Cavity-enhanced laser cooling for Yb3+-doped fluoride crystal using a low-power diode laser

Biao Zhong, Youhua Jia, Lin Chen, Yingchao Deng, Yangqin Chen, and Jianping Yin  »View Author Affiliations


JOSA B, Vol. 31, Issue 9, pp. 2116-2120 (2014)
http://dx.doi.org/10.1364/JOSAB.31.002116


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Abstract

A diode laser with a power of 178 mW is used to pump a 2.2% (wt.) Yb3+-doped YLiF4 crystal in an optical extracavity, and a resonant cavity-enhanced laser cooling for Yb3+-doped fluoride crystal is proposed and demonstrated. The pump laser enhancement factor so far obtained is up to 8.6 with the resonant cavity. Given that 82% of incident laser power is absorbed, the cooling efficiency is calculated as 1.08% and the temperature drop is 12.3 K/W. Accordingly, the combination of the diode laser—featuring low cost, long life, small weight, compact volume, and low power consumption—and the simple resonant cavity for laser cooling of solids is promising in some important applications in optical refrigeration of space sensors and detectors, etc.

© 2014 Optical Society of America

OCIS Codes
(140.3320) Lasers and laser optics : Laser cooling
(140.4780) Lasers and laser optics : Optical resonators
(140.6810) Lasers and laser optics : Thermal effects
(160.5690) Materials : Rare-earth-doped materials
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Spectroscopy

History
Original Manuscript: December 19, 2013
Revised Manuscript: July 6, 2014
Manuscript Accepted: July 19, 2014
Published: August 15, 2014

Citation
Biao Zhong, Youhua Jia, Lin Chen, Yingchao Deng, Yangqin Chen, and Jianping Yin, "Cavity-enhanced laser cooling for Yb3+-doped fluoride crystal using a low-power diode laser," J. Opt. Soc. Am. B 31, 2116-2120 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-9-2116

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