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Laser diode double-end-direct-pumped slab laser with hybrid resonator

Mao Ye-Fei Zhang Heng-Li Xu Liu Deng Bo Sang Si-Han He Jing-Liang Xing Ji-Chuan Xin Jian-Guo Jiang Yi

Laser diode double-end-direct-pumped slab laser with hybrid resonator

Mao Ye-Fei, Zhang Heng-Li, Xu Liu, Deng Bo, Sang Si-Han, He Jing-Liang, Xing Ji-Chuan, Xin Jian-Guo, Jiang Yi
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Publishing process
  • Received Date:  09 June 2014
  • Accepted Date:  23 July 2014
  • Published Online:  05 January 2015

Laser diode double-end-direct-pumped slab laser with hybrid resonator

  • 1. School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China;
  • 2. Institute of Crystal Materials, Shandong University, Jinan 250100, China

Abstract: To reduce the influence of thermal lensing and attain the high power laser with high beam quality, a laser diode stack dual-end-direct-pumped Nd:YVO4 slab laser with negative branch confocal folded hybrid cavity has been developed. Its maximum output power is 416 W, optical conversion efficiency is 54.3%, and slope efficiency is 61.6%. When the output laser power is 370 W, M2 values in the unstable resonator direction and stable resonator direction are 3.9 and 4.7, respectively.

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