System design and research of Yb:YAG thin disk laser with direct cooling arrangement

Qiong Ge Song; Guang Hua Cheng; Jing Bai; Xin Liu; Wen Long Tang

doi:10.3788/gzxb20144310.1014001

System design and research of Yb:YAG thin disk laser with direct cooling arrangement

Qiong Ge Song, Guang Hua Cheng, Jing Bai, Xin Liu, Wen Long Tang

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

2 Scopus citations

Abstract

A Yb:YAG thin disk laser with a novel four-pass pumped structure and direct water cooling device was designed. The multi-mode pump radiation was from a fiber-coupled 940 nm diode laser. The Yb:YAG disk with 10 mm diameter and 500 μm thickness was employed. The Yb³⁺ atom fraction was 10%. The direct cooling arrangement was put forward, tap water was contacted with the Yb:YAG through a V groove. The four-pass pump coupling system was well designed with a pair of rectangular prism and a focusing lens which had a diameter of 50 mm and focus of 50 mm. Then simulated the stability of the resonator and calculated the radius of the laser spot in different position of the resonator with the different cavity length. Different types of laser cavity were set up. With the output coupling rate of 5%, the maximum output power of 3.28 W at 1 031 nm was obtained in F-P resonator. The beam quality M_x²=1.79, M_y²=1.86. The slope efficiency was 20.5%.

Original language	English
Article number	1014001
Journal	Guangzi Xuebao/Acta Photonica Sinica
Volume	43
Issue number	10
DOIs	https://doi.org/10.3788/gzxb20144310.1014001
State	Published - 1 Oct 2014
Externally published	Yes

Keywords

Direct water cooling
Laser crystal
Lasers
Pump structure design
Solid state laser
Thin disk laser
Yb:YAG

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10.3788/gzxb20144310.1014001

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title = "System design and research of Yb:YAG thin disk laser with direct cooling arrangement",

abstract = "A Yb:YAG thin disk laser with a novel four-pass pumped structure and direct water cooling device was designed. The multi-mode pump radiation was from a fiber-coupled 940 nm diode laser. The Yb:YAG disk with 10 mm diameter and 500 μm thickness was employed. The Yb3+ atom fraction was 10%. The direct cooling arrangement was put forward, tap water was contacted with the Yb:YAG through a V groove. The four-pass pump coupling system was well designed with a pair of rectangular prism and a focusing lens which had a diameter of 50 mm and focus of 50 mm. Then simulated the stability of the resonator and calculated the radius of the laser spot in different position of the resonator with the different cavity length. Different types of laser cavity were set up. With the output coupling rate of 5%, the maximum output power of 3.28 W at 1 031 nm was obtained in F-P resonator. The beam quality Mx2=1.79, My2=1.86. The slope efficiency was 20.5%.",

keywords = "Direct water cooling, Laser crystal, Lasers, Pump structure design, Solid state laser, Thin disk laser, Yb:YAG",

author = "Song, {Qiong Ge} and Cheng, {Guang Hua} and Jing Bai and Xin Liu and Tang, {Wen Long}",

year = "2014",

month = oct,

day = "1",

doi = "10.3788/gzxb20144310.1014001",

language = "英语",

volume = "43",

journal = "Guangzi Xuebao/Acta Photonica Sinica",

issn = "1004-4213",

publisher = "Chinese Optical Society",

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TY - JOUR

T1 - System design and research of Yb:YAG thin disk laser with direct cooling arrangement

AU - Song, Qiong Ge

AU - Cheng, Guang Hua

AU - Bai, Jing

AU - Liu, Xin

AU - Tang, Wen Long

PY - 2014/10/1

Y1 - 2014/10/1

N2 - A Yb:YAG thin disk laser with a novel four-pass pumped structure and direct water cooling device was designed. The multi-mode pump radiation was from a fiber-coupled 940 nm diode laser. The Yb:YAG disk with 10 mm diameter and 500 μm thickness was employed. The Yb3+ atom fraction was 10%. The direct cooling arrangement was put forward, tap water was contacted with the Yb:YAG through a V groove. The four-pass pump coupling system was well designed with a pair of rectangular prism and a focusing lens which had a diameter of 50 mm and focus of 50 mm. Then simulated the stability of the resonator and calculated the radius of the laser spot in different position of the resonator with the different cavity length. Different types of laser cavity were set up. With the output coupling rate of 5%, the maximum output power of 3.28 W at 1 031 nm was obtained in F-P resonator. The beam quality Mx2=1.79, My2=1.86. The slope efficiency was 20.5%.

AB - A Yb:YAG thin disk laser with a novel four-pass pumped structure and direct water cooling device was designed. The multi-mode pump radiation was from a fiber-coupled 940 nm diode laser. The Yb:YAG disk with 10 mm diameter and 500 μm thickness was employed. The Yb3+ atom fraction was 10%. The direct cooling arrangement was put forward, tap water was contacted with the Yb:YAG through a V groove. The four-pass pump coupling system was well designed with a pair of rectangular prism and a focusing lens which had a diameter of 50 mm and focus of 50 mm. Then simulated the stability of the resonator and calculated the radius of the laser spot in different position of the resonator with the different cavity length. Different types of laser cavity were set up. With the output coupling rate of 5%, the maximum output power of 3.28 W at 1 031 nm was obtained in F-P resonator. The beam quality Mx2=1.79, My2=1.86. The slope efficiency was 20.5%.

KW - Direct water cooling

KW - Laser crystal

KW - Lasers

KW - Pump structure design

KW - Solid state laser

KW - Thin disk laser

KW - Yb:YAG

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U2 - 10.3788/gzxb20144310.1014001

DO - 10.3788/gzxb20144310.1014001

M3 - 文章

AN - SCOPUS:84910020151

SN - 1004-4213

VL - 43

JO - Guangzi Xuebao/Acta Photonica Sinica

JF - Guangzi Xuebao/Acta Photonica Sinica

IS - 10

M1 - 1014001

ER -

System design and research of Yb:YAG thin disk laser with direct cooling arrangement

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