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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 23425–23432

Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal

Jiakang Chen, Dunlu Sun, Jianqiao Luo, Huili Zhang, Renqin Dou, Jingzhong Xiao, Qingli Zhang, and Shaotang Yin  »View Author Affiliations

Optics Express, Vol. 21, Issue 20, pp. 23425-23432 (2013)

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We demonstrate a 968 nm diode end-pumped Er,Pr:GYSGG (Gd1.17Y1.83Sc2Ga3O12) laser at 2.79 μm operated in the pulse and continuous-wave (CW) modes. The lifetimes for the upper laser level 4I11/2 and lower level 4I13/2 are 0.52 and 0.60 ms, respectively. The laser produces 284 mW of power in the CW mode, corresponding to the optical-to-optical efficiency of 14.8% and slope efficiency of 17.4%. The maximum laser energy achieved is 2.4 mJ at a repetition rate of 50 Hz and pulse duration of 0.5 ms, corresponding to a peak power of 4.8 W and slope efficiency of 18.3%. These results suggest that doping deactivator Pr3+ ions can effectively decrease the lower-level lifetime and improve the laser efficiency.

© 2013 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3500) Lasers and laser optics : Lasers, erbium
(300.6260) Spectroscopy : Spectroscopy, diode lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 29, 2013
Revised Manuscript: September 11, 2013
Manuscript Accepted: September 13, 2013
Published: September 25, 2013

Jiakang Chen, Dunlu Sun, Jianqiao Luo, Huili Zhang, Renqin Dou, Jingzhong Xiao, Qingli Zhang, and Shaotang Yin, "Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal," Opt. Express 21, 23425-23432 (2013)

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