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  • Vol. 36, Iss. 6 — Mar. 15, 2011
  • pp: 1002–1004

Power scaling of laser diode pumped Pr 3 + : LiYF 4 cw lasers: efficient laser operation at 522.6 nm , 545.9 nm , 607.2 nm , and 639.5 nm

Teoman Gün, Philip Metz, and Günter Huber  »View Author Affiliations


Optics Letters, Vol. 36, Issue 6, pp. 1002-1004 (2011)
http://dx.doi.org/10.1364/OL.36.001002


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Abstract

We report efficient cw laser operation of laser diode pumped Pr 3 + -doped LiYF 4 crystals in the visible spectral region. Using two InGaN laser diodes emitting at λ P = 443.9 nm with maximum output power of 1 W each and a 2.9 - mm -long crystal with a doping concentration of 0.5%, output powers of 938 mW , 418 mW , 384 mW , and 773 mW were achieved for the laser wavelengths 639.5 nm , 607.2 nm , 545.9 nm , and 522.6 nm , respectively. The maximum absorbed pump powers were approximately 1.5 W , resulting in slope efficiencies of 63.6%, 32.0%, 52.1%, and 61.5%, as well as electro-optical efficiencies of 9.4%, 4.2%, 3.8%, and 7.7%, respectively. Within these experiments, laser diode-pumped laser action at 545.9 nm was demonstrated for what is believed to be the first time.

© 2011 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(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

History
Original Manuscript: January 3, 2011
Manuscript Accepted: January 31, 2011
Published: March 15, 2011

Citation
Teoman Gün, Philip Metz, and Günter Huber, "Power scaling of laser diode pumped Pr3+:LiYF4cw lasers: efficient laser operation at 522.6 nm, 545.9 nm, 607.2 nm, and 639.5 nm," Opt. Lett. 36, 1002-1004 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-6-1002


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