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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 8 — Aug. 1, 2012
  • pp: 1064–1075

Tm3+/Ho3+ co-doped LiGd(MoO4)2 crystal as laser gain medium around 2.0 μm

Jianfeng Tang, Yujin Chen, Yanfu Lin, Xinghong Gong, Jianhua Huang, Zundu Luo, and Yidong Huang  »View Author Affiliations


Optical Materials Express, Vol. 2, Issue 8, pp. 1064-1075 (2012)
http://dx.doi.org/10.1364/OME.2.001064


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Abstract

Tm3+/Ho3+ co-doped LiGd(MoO4)2 (LGM) crystals were investigated as gain media for the Ho3+ laser around 2.0 μm. Polarized spectroscopic parameters of Ho3+ ions in the crystals were calculated based on the absorption spectra by the Judd-Ofelt theory. Related fluorescence spectra and decay curves were measured and analyzed for the crystals with different Tm3+/Ho3+ co-doped concentrations, 5.4/1.4 and 4.6/0.6 at.%. Stimulated emission cross sections of the 5I75I8 transition of Ho3+ ions were derived according to the Füchtbauer-Ladenburg formula. End-pumped by a pulsed diode laser at 795 nm, the Ho3+ laser at 2.05 μm with a slope efficiency of 20% was realized in a c-cut crystal sample with the Tm3+/Ho3+ concentrations of 4.6/0.6 at.%.

© 2012 OSA

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3580) Lasers and laser optics : Lasers, solid-state
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Laser Materials

History
Original Manuscript: February 9, 2012
Revised Manuscript: June 5, 2012
Manuscript Accepted: July 16, 2012
Published: July 18, 2012

Citation
Jianfeng Tang, Yujin Chen, Yanfu Lin, Xinghong Gong, Jianhua Huang, Zundu Luo, and Yidong Huang, "Tm3+/Ho3+ co-doped LiGd(MoO4)2 crystal as laser gain medium around 2.0 μm," Opt. Mater. Express 2, 1064-1075 (2012)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-2-8-1064


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