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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 13 — Jul. 1, 2006
  • pp: 2003–2005

300 W continuous-wave operation of a diode edge-pumped, hybrid composite Yb:YAG microchip laser

Masaki Tsunekane and Takunori Taira  »View Author Affiliations

Optics Letters, Vol. 31, Issue 13, pp. 2003-2005 (2006)

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300 W continuous-wave operation of a diode edge-pumped, hybrid (single-crystal/ceramic) composite, Yb 3 + : YAG microchip laser with a 5 mm diameter and 300 μ m thickness single-crystal core uniformly bonded to a water-cooled heat sink by a new Au–Sn soldering system has been demonstrated. The beam quality factor M 2 follows the mode mismatch between the core and the fundamental mode and was improved to 17 with a maximum output power of 230 W . A thermally induced convex mirror with a spherical radius of curvature ranging from 2.5 to 1.5 m was observed; the radius of curvature decreases through thermal deformation of the microchip as the pump power increases.

© 2006 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 1, 2006
Revised Manuscript: April 26, 2006
Manuscript Accepted: April 26, 2006

Masaki Tsunekane and Takunori Taira, "300 W continuous-wave operation of a diode edge-pumped, hybrid composite Yb:YAG microchip laser," Opt. Lett. 31, 2003-2005 (2006)

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