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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4260–4261

Cryogenically cooled, 149  W, Q-switched, Yb:LiYF4 laser

Daniel E. Miller, Juan R. Ochoa, and Tso Yee Fan  »View Author Affiliations

Optics Letters, Vol. 38, Issue 20, pp. 4260-4261 (2013)

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We demonstrate a 149 W Yb:LiYF4 laser with diffraction-limited beam quality at 995 nm. The laser, Q-switched at 10 kHz pulse repetition frequency, produces linearly polarized 52 ns pulses with a slope efficiency of 73%. The combination of cryogenic cooling and a low (3.5%) quantum defect results in minimal thermo-optic effects and high thermal efficiency. The measured heat load to the cryogen is 0.15 W per watt of output. These results show the potential for significant power scaling of Q-switched Yb:YLF lasers with excellent beam quality.

© 2013 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3538) Lasers and laser optics : Lasers, pulsed
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 9, 2013
Manuscript Accepted: September 18, 2013
Published: October 15, 2013

Daniel E. Miller, Juan R. Ochoa, and Tso Yee Fan, "Cryogenically cooled, 149  W, Q-switched, Yb:LiYF4 laser," Opt. Lett. 38, 4260-4261 (2013)

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Fig. 1. Fig. 2. Fig. 3.

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