Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency

Dawei Liang; Cláudia R. Vistas; Bruno D. Tibúrcio; Joana Almeida

doi:10.1016/j.solmat.2018.05.020

Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency

Dawei Liang, Cláudia R. Vistas, Bruno D. Tibúrcio, Joana Almeida

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

59 Citations (Scopus)

Abstract

We report here a significant progress in solar laser slope efficiency by end-side-pumping a 4.5 mm diameter, 35 mm length Cr:Nd:YAG ceramic rod with a 1.0 m² effective collection area heliostat-parabolic mirror solar energy concentration system. A novel fused silica liquid light guide lens with unique water cooling approach was used to efficiently couple the concentrated solar radiations from the focal zone of a parabolic mirror into the laser rod within a conical pumping cavity. 32.5 W continuous-wave 1064 nm solar laser power was measured, corresponding to 6.7% slope efficiency, being 1.28 times more than the previous record. The highest solar laser collection efficiency of 32.5 W/m² was also achieved.

Original language	English
Pages (from-to)	75-79
Number of pages	5
Journal	Solar Energy Materials and Solar Cells
Volume	185
DOIs	https://doi.org/10.1016/j.solmat.2018.05.020
Publication status	Published - 1 Oct 2018

Keywords

Ceramic crystal
Cr:Nd:YAG
Parabolic mirror
Slope efficiency
Solar concentrator
Solar-pumped laser

UN SDGs

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

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10.1016/j.solmat.2018.05.020Licence: CC BY-NC-ND

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title = "Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency",

abstract = "We report here a significant progress in solar laser slope efficiency by end-side-pumping a 4.5 mm diameter, 35 mm length Cr:Nd:YAG ceramic rod with a 1.0 m2 effective collection area heliostat-parabolic mirror solar energy concentration system. A novel fused silica liquid light guide lens with unique water cooling approach was used to efficiently couple the concentrated solar radiations from the focal zone of a parabolic mirror into the laser rod within a conical pumping cavity. 32.5 W continuous-wave 1064 nm solar laser power was measured, corresponding to 6.7% slope efficiency, being 1.28 times more than the previous record. The highest solar laser collection efficiency of 32.5 W/m2 was also achieved.",

keywords = "Ceramic crystal, Cr:Nd:YAG, Parabolic mirror, Slope efficiency, Solar concentrator, Solar-pumped laser",

author = "Dawei Liang and Vistas, {Cl{\'a}udia R.} and Tib{\'u}rcio, {Bruno D.} and Joana Almeida",

note = "Sem PDF conforme despacho. info:eu-repo/grantAgreement/FCT/5876/147412/PT# Financial support of the strategic project (UID/FIS/00068/2013) of the Science and Technology Foundation of Portuguese Ministry of Science, Technology and Higher Education (FCT - MCTES) is acknowledged. The FCT-MCTES fellowship grants PD/BD/128267/2016, SFRH/BPD/125116/2016 of B. D. Tibilrcio and C. R. Vistas, respectively, are acknowledged.",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.solmat.2018.05.020",

language = "English",

volume = "185",

pages = "75--79",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "North-Holland | Elsevier",

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T1 - Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency

AU - Liang, Dawei

AU - Vistas, Cláudia R.

AU - Tibúrcio, Bruno D.

AU - Almeida, Joana

N1 - Sem PDF conforme despacho. info:eu-repo/grantAgreement/FCT/5876/147412/PT# Financial support of the strategic project (UID/FIS/00068/2013) of the Science and Technology Foundation of Portuguese Ministry of Science, Technology and Higher Education (FCT - MCTES) is acknowledged. The FCT-MCTES fellowship grants PD/BD/128267/2016, SFRH/BPD/125116/2016 of B. D. Tibilrcio and C. R. Vistas, respectively, are acknowledged.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - We report here a significant progress in solar laser slope efficiency by end-side-pumping a 4.5 mm diameter, 35 mm length Cr:Nd:YAG ceramic rod with a 1.0 m2 effective collection area heliostat-parabolic mirror solar energy concentration system. A novel fused silica liquid light guide lens with unique water cooling approach was used to efficiently couple the concentrated solar radiations from the focal zone of a parabolic mirror into the laser rod within a conical pumping cavity. 32.5 W continuous-wave 1064 nm solar laser power was measured, corresponding to 6.7% slope efficiency, being 1.28 times more than the previous record. The highest solar laser collection efficiency of 32.5 W/m2 was also achieved.

AB - We report here a significant progress in solar laser slope efficiency by end-side-pumping a 4.5 mm diameter, 35 mm length Cr:Nd:YAG ceramic rod with a 1.0 m2 effective collection area heliostat-parabolic mirror solar energy concentration system. A novel fused silica liquid light guide lens with unique water cooling approach was used to efficiently couple the concentrated solar radiations from the focal zone of a parabolic mirror into the laser rod within a conical pumping cavity. 32.5 W continuous-wave 1064 nm solar laser power was measured, corresponding to 6.7% slope efficiency, being 1.28 times more than the previous record. The highest solar laser collection efficiency of 32.5 W/m2 was also achieved.

KW - Ceramic crystal

KW - Cr:Nd:YAG

KW - Parabolic mirror

KW - Slope efficiency

KW - Solar concentrator

KW - Solar-pumped laser

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U2 - 10.1016/j.solmat.2018.05.020

DO - 10.1016/j.solmat.2018.05.020

M3 - Article

AN - SCOPUS:85047273372

SN - 0927-0248

VL - 185

SP - 75

EP - 79

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency

Abstract

Keywords

UN SDGs

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