5.04% system slope efficiency solar-pumped Nd:YAG laser by a heliostat-parabolic mirror system

Zhe Guan; Changming Zhao; Haiyang Zhang; Jinhua Li; Dongbing He; Joana Almeida; Cláudia R. Vistas; Dawei Liang

doi:10.1117/1.JPE.8.027501

5.04% system slope efficiency solar-pumped Nd:YAG laser by a heliostat-parabolic mirror system

Zhe Guan, Changming Zhao^*, Haiyang Zhang, Jinhua Li, Dongbing He, Joana Almeida, Cláudia R. Vistas, Dawei Liang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Article number	027501
Journal	Journal of Photonics for Energy
Volume	8
Issue number	2
DOIs	https://doi.org/10.1117/1.JPE.8.027501
Publication status	Published - 1 Apr 2018
Externally published	Yes

Keywords

heliostat-parabolic mirror
solid-state lasers
total system slope efficiency

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1117/1.JPE.8.027501

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title = "5.04% system slope efficiency solar-pumped Nd:YAG laser by a heliostat-parabolic mirror system",

abstract = "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.",

keywords = "heliostat-parabolic mirror, solid-state lasers, total system slope efficiency",

author = "Zhe Guan and Changming Zhao and Haiyang Zhang and Jinhua Li and Dongbing He and Joana Almeida and Vistas, {Cl{\'a}udia R.} and Dawei Liang",

note = "Publisher Copyright: {\textcopyright} 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).",

year = "2018",

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doi = "10.1117/1.JPE.8.027501",

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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

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

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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 -

5.04% system slope efficiency solar-pumped Nd:YAG laser by a heliostat-parabolic mirror system

Abstract

Keywords

UN SDGs

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