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Optics Letters

Optics Letters


  • Vol. 25, Iss. 9 — May. 1, 2000
  • pp: 619–621

Room-temperature operation of a multiwatt Tm:YAG laser pumped by a 1-μm Nd:YAG laser

P. B. Phua, R. F. Wu, Y. L. Lim, and Ernest Lau  »View Author Affiliations

Optics Letters, Vol. 25, Issue 9, pp. 619-621 (2000)

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We present what is to our knowledge the first demonstration of a 4.7-W cw Tm:YAG. This proof-of-principle experiment clearly demonstrates the possibility of using a pump absorption that is 2 orders of magnitude (∼0.0078 cm-1) less than that of the conventional pump absorption (typically >1 cm-1). This Tm:YAG laser is pumped intracavity within a Nd:YAG laser for multiple-pass absorption. The maximum conversion efficiency of 2.02 μm is 20%, with a slope efficiency of 35% with respect to the absorbed 1.064-μm power.

© 2000 Optical Society of America

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.5560) Lasers and laser optics : Pumping
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

P. B. Phua, R. F. Wu, Y. L. Lim, and Ernest Lau, "Room-temperature operation of a multiwatt Tm:YAG laser pumped by a 1-μm Nd:YAG laser," Opt. Lett. 25, 619-621 (2000)

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