@inproceedings{fb057cb33a4546f0bc56d8faae3802d6,
title = "How to harvest efficient laser from solar light",
abstract = "Solar Pumped Solid State Lasers (SPSSL) is a kind of solid state lasers that can transform solar light into laser directly, with the advantages of least energy transform procedure, higher energy transform efficiency, simpler structure, higher reliability, and longer lifetime, which is suitable for use in unmanned space system, for solar light is the only form of energy source in space. In order to increase the output power and improve the efficiency of SPSSL, we conducted intensive studies on the suitable laser material selection for solar pump, high efficiency/large aperture focusing optical system, the optimization of concave cavity as the second focusing system, laser material bonding and surface processing. Using bonded and grooved Nd:YAG rod as laser material, large aperture Fresnel lens as the first stage focusing element, concave cavity as the second stage focusing element, we finally got 32.1W/m2 collection efficiency, which is the highest collection efficiency in the world up to now.",
keywords = "Fresnel lens, Solar pumped solid state lasers, efficiency, laser medium",
author = "Changming Zhao and Zhe Guan and Haiyang Zhang",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Solid State Lasers XXVII: Technology and Devices 2018 ; Conference date: 29-01-2018 Through 01-02-2018",
year = "2018",
doi = "10.1117/12.2291264",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Clarkson, \{W. Andrew\} and Shori, \{Ramesh K.\}",
booktitle = "Solid State Lasers XXVII",
address = "United States",
}