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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 24 — Aug. 20, 2013
  • pp: 5967–5973

Reducing temperature dependence of the output energy of a quasi-continuous wave diode-pumped Nd:YAG laser

Kangin Lee, Youngjung Kim, Sijin Lee, Jin Hyuk Kwon, Jin Seog Gwak, and Jonghoon Yi  »View Author Affiliations


Applied Optics, Vol. 52, Issue 24, pp. 5967-5973 (2013)
http://dx.doi.org/10.1364/AO.52.005967


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Abstract

It is demonstrated by numerical modeling that spectrally dispersed compound pumping diodes and low-loss pumping chamber reduced the temperature dependence of the output energy of quasi-continuous wave diode-pumped Nd:YAG lasers considerably. Several compound diodes with different spectral profiles were tested for pumping. The laser energy was calculated as a function of diode temperature from 30°C to 60°C. When a compound diode with a flat-top spectrum was used for pumping, the mean laser energy was 83% of the maximum energy of a Nd:YAG laser pumped by a diode with a narrow bandwidth. In addition, a compound diode with three emission lines was tested for pumping. When the wavelength gap between the adjacent emission lines of the pumping diode was in the range of 3–10 nm, the mean energy of the Nd:YAG laser became similar to that of a Nd:YAG laser pumped by a diode with a flat-top spectrum.

© 2013 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5560) Lasers and laser optics : Pumping
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 26, 2013
Revised Manuscript: June 27, 2013
Manuscript Accepted: July 22, 2013
Published: August 15, 2013

Citation
Kangin Lee, Youngjung Kim, Sijin Lee, Jin Hyuk Kwon, Jin Seog Gwak, and Jonghoon Yi, "Reducing temperature dependence of the output energy of a quasi-continuous wave diode-pumped Nd:YAG laser," Appl. Opt. 52, 5967-5973 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-24-5967

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