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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 5 — Mar. 11, 2013
  • pp: 5567–5574

Red and orange laser operation of Pr:KYF4 pumped by a Nd:YAG/LBO laser at 469.1nm and a InGaN laser diode at 444nm

B. Xu, F. Starecki, D. Pabœuf, P. Camy, J. L. Doualan, Z. P. Cai, A. Braud, R. Moncorgé, Ph. Goldner, and F. Bretenaker  »View Author Affiliations

Optics Express, Vol. 21, Issue 5, pp. 5567-5574 (2013)

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We report the basic luminescence properties and the continuous-wave (CW) laser operation of a Pr3+-doped KYF4 single crystal in the Red and Orange spectral regions by using a new pumping scheme. The pump source is an especially developed, compact, slightly tunable and intra-cavity frequency-doubled diode-pumped Nd:YAG laser delivering a CW output power up to about 1.4 W around 469.1 nm. At this pump wavelength, red and orange laser emissions are obtained at about 642.3 and 605.5 nm, with maximum output powers of 11.3 and 1 mW and associated slope efficiencies of 9.3% and 3.4%, with respect to absorbed pump powers, respectively. For comparison, the Pr:KYF4 crystal is also pumped by a InGaN blue laser diode operating around 444 nm. In this case, the same red and orange lasers are obtained, but with maximum output powers of 7.8 and 2 mW and the associated slope efficiencies of 7 and 5.8%, respectively. Wavelength tuning for the two lasers is demonstrated by slightly tilting the crystal. Orange laser operation and laser wavelength tuning are reported for the first time.

© 2013 OSA

OCIS Codes
(140.5560) Lasers and laser optics : Pumping
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.7300) Lasers and laser optics : Visible lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 5, 2012
Revised Manuscript: January 18, 2013
Manuscript Accepted: January 18, 2013
Published: February 27, 2013

B. Xu, F. Starecki, D. Pabœuf, P. Camy, J. L. Doualan, Z. P. Cai, A. Braud, R. Moncorgé, Ph. Goldner, and F. Bretenaker, "Red and orange laser operation of Pr:KYF4 pumped by a Nd:YAG/LBO laser at 469.1nm and a InGaN laser diode at 444nm," Opt. Express 21, 5567-5574 (2013)

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