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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 1 — Jan. 1, 2004
  • pp: 59–61

Excited-state absorption and 1064-nm end-pumped laser emission of Nd:YVO4 single-crystal fiber grown by laser-heated pedestal growth

Andrea S. S. de Camargo, Luiz Antonio O. Nunes, Diogenes R. Ardila, and José Pedro Andreeta  »View Author Affiliations


Optics Letters, Vol. 29, Issue 1, pp. 59-61 (2004)
http://dx.doi.org/10.1364/OL.29.000059


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Abstract

We present an investigation of the excited-state absorption and laser emission of a 1.0-at.%-Nd3+ -doped YVO4 single-crystal fiber grown by the low-cost and versatile laser-heated pedestal growth technique. Efficient laser emission at 1064 nm was achieved when the fiber was pumped, in an end-pump cavity, by a Ti:sapphire laser at 808 nm. A continuous-wave threshold of 10 mW was observed with an efficiency of 42% with respect to the absorbed pump power and the maximum output power of 200 mW. These results are excellent when compared with those of a commercial bulk crystal adapted to the same cavity (48% efficiency, 250-mW maximum output power). Thus the fibers are characterized as strong candidates for the construction of compact lasers that can also be pumped by low-cost diode lasers.

© 2004 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3580) Lasers and laser optics : Lasers, solid-state
(160.2290) Materials : Fiber materials
(160.3380) Materials : Laser materials
(160.5690) Materials : Rare-earth-doped materials
(300.6340) Spectroscopy : Spectroscopy, infrared

Citation
Andrea S. S. de Camargo, Luiz Antonio O. Nunes, Diogenes R. Ardila, and José Pedro Andreeta, "Excited-state absorption and 1064-nm end-pumped laser emission of Nd:YVO4 single-crystal fiber grown by laser-heated pedestal growth," Opt. Lett. 29, 59-61 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-1-59

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