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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5241–5251

Continuous-wave and Q-switched microchip laser performance of Yb:Y3Sc2Al3O12 crystals

Jun Dong, Ken-ichi Ueda, and Alexander A. Kaminskii  »View Author Affiliations


Optics Express, Vol. 16, Issue 8, pp. 5241-5251 (2008)
http://dx.doi.org/10.1364/OE.16.005241


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Abstract

Optical properties of Yb:Y3Sc2Al3O12 crystal were investigated and compared with those from Yb:YAG crystals. The broad absorption and emission spectra of Yb:Y3Sc2Al3O12 show that this crystal is very suitable for laser-diode pumping and ultrafast laser pulse generation. Laser-diode pumped continuous-wave and passively Q-switched Yb:Y3Sc2Al3O12 lasers with Cr4+:YAG crystals as saturable absorber have been demonstrated for the first time. Continuous-wave output power of 1.12 W around 1032 nm (multi-longitudinal modes) was measured with an optical-to-optical efficiency of 30%. Laser pulses with pulse energy of over 31 µJ and pulse width of 2.5 ns were measured at repetition rate of over 12.7 kHz; a corresponding peak power of over 12 kW was obtained. The longitudinal mode selection by a thin plate of Cr4+:YAG as an intracavity etalon was also observed in passively Q-switched Yb:Y3Sc2Al2O12 microchip lasers.

© 2008 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 28, 2008
Revised Manuscript: March 18, 2008
Manuscript Accepted: March 24, 2008
Published: April 1, 2008

Citation
Jun Dong, Ken-ichi Ueda, and Alexander A. Kaminskii, "Continuous-wave and Q-switched microchip laser performance of Yb:Y3Sc2Al3O12 crystals," Opt. Express 16, 5241-5251 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-8-5241


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