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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 19 — Jul. 1, 2007
  • pp: 4046–4051

Semianalytical thermal analysis on a Nd:YVO4 crystal

Peng Shi, Wen Chen, Long Li, and Ansheng Gan  »View Author Affiliations


Applied Optics, Vol. 46, Issue 19, pp. 4046-4051 (2007)
http://dx.doi.org/10.1364/AO.46.004046


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Abstract

Based on analytical theory of anisotropy, distributions of thermal distortion and temperature field within a diode-end-pumped rectangular Nd:YVO4 laser crystal are investigated. A thermal model that matches the actual working state of the laser crystal is established by analyzing the working characteristics of the Nd:YVO4 laser crystal. A novel method, to the best of our knowledge, is adopted to solve the heat conduction equation of the anisotropic medium. General solutions of the temperature field, thermal strain field, and thermal distortion field of the Nd:YVO4 crystal are obtained. The effect of anisotropic thermal parameters on the thermal strain field of the Nd:YVO4 laser crystal is also analyzed quantitatively. Research results show that a maximum temperature rise of 244.9 ° C and a maximum thermal distortion of 1.99   μm can be obtained in the center of the pump face when the Nd:YVO4 laser crystal doped with 0.5 at. % Nd 3+ is diode end pumped in the center of the front end face with 15 W output power. This method can be applied to other thermal analyses of laser crystals and offers a theoretical basis to solve thermal problems effectively in the laser system.

© 2007 Optical Society of America

OCIS Codes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Mass Spectrometry, Ignition, and Computational Analysis

History
Original Manuscript: October 9, 2006
Revised Manuscript: February 12, 2007
Manuscript Accepted: February 28, 2007
Published: June 12, 2007

Citation
Peng Shi, Wen Chen, Long Li, and Ansheng Gan, "Semianalytical thermal analysis on a Nd:YVO4 crystal," Appl. Opt. 46, 4046-4051 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-19-4046

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