TY - JOUR
T1 - 5.04% system slope efficiency solar-pumped Nd:YAG laser by a heliostat-parabolic mirror system
AU - Guan, Zhe
AU - Zhao, Changming
AU - Zhang, Haiyang
AU - Li, Jinhua
AU - He, Dongbing
AU - Almeida, Joana
AU - Vistas, Cláudia R.
AU - Liang, Dawei
N1 - Publisher Copyright:
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2018/4/1
Y1 - 2018/4/1
N2 - We demonstrated a solar-pumped laser with a heliostat-parabolic mirror system. A designed conical pump cavity with a water-filled quartz tube lens was used to couple efficiently the concentrated solar radiation from the focal zone of the primary concentrator into a 5.5-mm-diameter, 95-mm-length grooved Nd:YAG crystal rod within a gold-plated conical pump cavity. For 1.0-m2 effective solar radiation collection area, 20.1-W continuous-wave (CW) output laser power was obtained, corresponding to a total system slope efficiency of 5.04%. This value was 1.31 times higher than the previous with the same solar facility. For 1.5-m2 effective collection area, 34.6-W CW output laser power was achieved at the total system slope efficiency of 4.51%. A strong dependency of laser power on laser rod mounting position was also found.
AB - We demonstrated a solar-pumped laser with a heliostat-parabolic mirror system. A designed conical pump cavity with a water-filled quartz tube lens was used to couple efficiently the concentrated solar radiation from the focal zone of the primary concentrator into a 5.5-mm-diameter, 95-mm-length grooved Nd:YAG crystal rod within a gold-plated conical pump cavity. For 1.0-m2 effective solar radiation collection area, 20.1-W continuous-wave (CW) output laser power was obtained, corresponding to a total system slope efficiency of 5.04%. This value was 1.31 times higher than the previous with the same solar facility. For 1.5-m2 effective collection area, 34.6-W CW output laser power was achieved at the total system slope efficiency of 4.51%. A strong dependency of laser power on laser rod mounting position was also found.
KW - heliostat-parabolic mirror
KW - solid-state lasers
KW - total system slope efficiency
UR - http://www.scopus.com/inward/record.url?scp=85047726851&partnerID=8YFLogxK
U2 - 10.1117/1.JPE.8.027501
DO - 10.1117/1.JPE.8.027501
M3 - Article
AN - SCOPUS:85047726851
SN - 1947-7988
VL - 8
JO - Journal of Photonics for Energy
JF - Journal of Photonics for Energy
IS - 2
M1 - 027501
ER -
