Volume 26 Issue 12
Sep.  2015
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Article Navigation >  High Power Laser and Particle Beams  > 2014  >  26(12): 121014
Li Guangrong, Zhao Zhenguo, Wang Weijie, et al. Design and implementation of semiconductor multi-physical parallel computing program JEMS-CDS-Device[J]. High Power Laser and Particle Beams, 2020, 32: 043201. doi: 10.11884/HPLPB202032.190264
Citation: Guan Zhe, Zhao Changming, Yang Suhui, et al. Improving side-pumping efficiency of solar-pumped lasers[J]. High Power Laser and Particle Beams, 2014, 26: 121014. doi: 10.11884/HPLPB201426.121014
shu

Improving side-pumping efficiency of solar-pumped lasers

doi: 10.11884/HPLPB201426.121014
  • 1.

    School of Optoelectronics,Beijing Institute of Technology,Beijing 100081,China

  • Received Date: 2014-08-29
  • Rev Recd Date: 2014-10-28
  • Publish Date: 2014-12-16
    Abstract
  • Solar pumped lasers directly convert sunlight into laser radiation. In this paper, we improve the configuration and structure of the hybrid pumping cavity adding a water-cooling system in the copper cavity. Output laser power is up to 23.7 W, using an Nd:YAG crystal rod with a diameter of 8 mm and a length of 115 mm as laser media, and a 7.87% slope efficiency is achieved. A Fresnel lens with a surface of 1.03 m2 is used as the primary solar light concentrator. It is shown through comparison experiments that the design of the new pumping cavity is an effective solution with a 55.92% increase in output power. We analyze the absorption loss and coupling efficiency of side-pumping light in the new cavity, and confirm that the new structure can improve the side-pumping efficiency. At the end of the article another design of composite cavity with ceramic material is put forward.
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