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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 15 — Jul. 20, 2009
  • pp: 12582–12587

Continuous-wave laser action around 2-μm in Ho3+:Lu2SiO5

Bao-Quan Yao, Zheng-Ping Yu, Xiao-Ming Duan, Zhi-Min Jiang, Yun-Jun Zhang, Yue-zhu Wang, and Guang-Jun Zhao  »View Author Affiliations


Optics Express, Vol. 17, Issue 15, pp. 12582-12587 (2009)
http://dx.doi.org/10.1364/OE.17.012582


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Abstract

Continuous-wave (cw) laser action around 2 μm in Ho3+-doped Lu2SiO5 (LSO) was demonstrated in this paper. Cryogenically cooled by liquid nitrogen, a 10-mm long Tm-sensitized (6% at.) Ho(0.4% at.):LSO produced a maximum output power of 3 W at 2.07 μm for incident diode power of 11 W at 786 nm, and a slope efficiency of 35% with respect to incident pump power. To achieve room-temperature operation of Tm, Ho:LSO laser, a 1-mm long microchip crystal was pumped by a high brightness diode, generating an output power of greater than 80 mW and a slope efficiency of 26% at 2.08 μm. Using a 1.91 μm Tm:YLF laser as an in-band pump source, room-temperature cw operation of singly-doped Ho: Lu2SiO5 laser at 2106 nm was attained with a maximum output power of 2.8 W and a slope efficiency of 35% corresponding to absorbed pump power.

© 2009 OSA

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 6, 2009
Revised Manuscript: July 2, 2009
Manuscript Accepted: July 5, 2009
Published: July 20, 2009

Citation
Bao-Quan Yao, Zheng-Ping Yu, Xiao-Ming Duan, Zhi-Min Jiang, Yun-Jun Zhang, Yue-zhu Wang, and Guang-Jun Zhao, "Continuous-wave laser action around 2-μm in Ho3+:Lu2SiO5," Opt. Express 17, 12582-12587 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-15-12582


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