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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 20 — Sep. 24, 2012
  • pp: 22448–22453

Passively Q-switched Nd:Sc0.2Y0.8SiO5 dual-wavelength laser with the orthogonally polarized output

S.D. Liu, L.H. Zheng, J.L. He, J. Xu, X.D. Xu, L.B. Su, K.J. Yang, B.T. Zhang, R.H. Wang, and X.M. Liu  »View Author Affiliations

Optics Express, Vol. 20, Issue 20, pp. 22448-22453 (2012)

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We have demonstrated a laser-diode pumped continuous-wave (CW) and passively Q-switched laser with a Nd:Sc0.2Y0.8SiO5 (Nd:SYSO) crystal for the first time. In the CW operation, the laser was found to oscillate in tri-wavelength regime at 1074.8 nm, 1076.6 nm and 1078.2 nm, respectively. The maximum CW output power of 1.96 W was obtained, giving an optical-to-optical conversion efficiency of 35% and a slope efficiency of 39%. Using either Cr4+:YAG or V3+:YAG crystal as saturable absorber, stable passively Q-switched laser was obtained at dual-wavelength of 1074.8 nm and 1078.2 nm with orthogonal-polarization. The maximum average output power, pulse repetition rate, and shortest pulse width were 1.03 W, 50 kHz, and 24 ns, respectively. The passively Q-switched dual-wavelength laser could be potentially used as a source for generation of terahertz radiation.

© 2012 OSA

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 4, 2012
Revised Manuscript: July 29, 2012
Manuscript Accepted: July 29, 2012
Published: September 17, 2012

S.D. Liu, L.H. Zheng, J.L. He, J. Xu, X.D. Xu, L.B. Su, K.J. Yang, B.T. Zhang, R.H. Wang, and X.M. Liu, "Passively Q-switched Nd:Sc0.2Y0.8SiO5 dual-wavelength laser with the orthogonally polarized output," Opt. Express 20, 22448-22453 (2012)

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