Applied Physics B

, Volume 109, Issue 2, pp 183–188 | Cite as

Comparative study on the laser performance of two Yb-doped disordered garnet crystals: Yb:CNGG and Yb:CLNGG

  • Junhai Liu
  • Yong Wan
  • Zhichao Zhou
  • Xueping Tian
  • Wenjuan Han
  • Huaijin Zhang
Article

Abstract

Continuous-wave (CW) and passively Q-switching laser performance of the Yb:CNGG and Yb:CLNGG disordered garnet crystals are compared. CW output powers of 6.3 and 7.5 W are generated from the Yb:CNGG and Yb:CLNGG lasers, with slope efficiencies measured to be 63 and 74 %, respectively. In passively Q-switched operation, the average output power reaches 2.0 and 3.1 W, with slope efficiencies of 56 and 65 %, for the Yb:CNGG and Yb:CLNGG lasers, respectively. Laser pulses of 9.5 ns in duration are generated with the two Yb lasers, with the highest pulse energy and peak power amounting to 166.7 μJ and 17.5 kW for the Yb:CNGG laser, and 133.0 μJ and 14.0 kW for the Yb:CLNGG laser. In respects of efficient laser operation and power scaling, the Yb:CLNGG proves to be advantageous over Yb:CNGG, whereas the Yb:CNGG is superior to Yb:CLNGG in energy storage capacity.

Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant 60978023).

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Junhai Liu
    • 1
    • 2
  • Yong Wan
    • 1
  • Zhichao Zhou
    • 1
    • 2
  • Xueping Tian
    • 1
    • 2
  • Wenjuan Han
    • 1
    • 2
  • Huaijin Zhang
    • 3
  1. 1.College of PhysicsQingdao UniversityQingdaoChina
  2. 2.Key Laboratory of Photonics Materials and Technology in Universities of ShandongQingdao UniversityQingdaoChina
  3. 3.State Key Laboratory of Crystal MaterialsShandong UniversityJinanChina

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