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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 21 — Nov. 1, 2008
  • pp: 2548–2550

Enhanced efficiency of Er : Yb : Ce : Na Gd ( W O 4 ) 2 laser at 1.5 1.6 μ m by the introduction of high-doping Ce 3 + ions

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


Optics Letters, Vol. 33, Issue 21, pp. 2548-2550 (2008)
http://dx.doi.org/10.1364/OL.33.002548


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Abstract

By the introduction of high-doping Ce 3 + ions, the upconversion fluorescence of Er 3 + ions was reduced, and the energy-transfer efficiency from Yb 3 + to Er 3 + ions was enhanced significantly in Er : Yb : Ce : Na Gd ( W O 4 ) 2 crystals. End pumped by a diode laser at 970 nm in a hemispherical cavity, a 2.0 W quasi-cw laser at 1.5 1.6 μ m with slope efficiency of 19% and absorbed pump threshold of 2.0 W was achieved in a 1.7 - mm -thick c-cut Er : Yb : Ce : Na Gd ( W O 4 ) 2 crystal. The results show that the Er. : Yb : Ce : Na Gd ( W O 4 ) 2 crystal with high-doping Ce 3 + ions is a potential gain medium for a low-threshold 1.5 1.6 μ m laser.

© 2008 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3500) Lasers and laser optics : Lasers, erbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 29, 2008
Manuscript Accepted: September 15, 2008
Published: October 29, 2008

Citation
Jianhua Huang, Yujin Chen, Yanfu Lin, Xinghong Gong, Zundu Luo, and Yidong Huang, "Enhanced efficiency of Er:Yb:Ce:NaGd(WO4)2 laser at 1.5–1.6 μm by the introduction of high-doping Ce3+ ions," Opt. Lett. 33, 2548-2550 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-21-2548


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