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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 15 — May. 20, 1998
  • pp: 3290–3294

Reduction of thermal effects in a diode-end-pumped, composite Nd:YAG rod with a sapphire end

Masaki Tsunekane, Noboru Taguchi, and Humio Inaba  »View Author Affiliations


Applied Optics, Vol. 37, Issue 15, pp. 3290-3294 (1998)
http://dx.doi.org/10.1364/AO.37.003290


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Abstract

We present what is to our knowledge the first theoretical and experimental estimation of the thermal characteristics of a composite Nd:YAG rod with an Al2O3 (sapphire) end in diode-end-pumped geometry. The peak temperature rise in the active segment is calculated to be reduced to 66% and the focal length of the thermal lens was measured to be reduced by 20% compared with a noncomposite Nd:YAG rod. By using a composite rod we successfully demonstrated the improvement of high-power performance that is due to reduction of thermally induced birefringence, which has not been observed in a composite rod with an undoped YAG end.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3460) Lasers and laser optics : Lasers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.6810) Lasers and laser optics : Thermal effects

History
Original Manuscript: September 11, 1997
Revised Manuscript: December 22, 1997
Published: May 20, 1998

Citation
Masaki Tsunekane, Noboru Taguchi, and Humio Inaba, "Reduction of thermal effects in a diode-end-pumped, composite Nd:YAG rod with a sapphire end," Appl. Opt. 37, 3290-3294 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-15-3290

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