880-nm-diode-laser-end-pumped electrooptically Q-switched Nd:YLF laser with high energy and good beam quality at 1047 nm and 1 kHz

Zilong Zhang; Qiang Liu; Mingming Nie; Encai Ji; Mali Gong

doi:10.1109/JPHOT.2016.2517134

880-nm-diode-laser-end-pumped electrooptically Q-switched Nd:YLF laser with high energy and good beam quality at 1047 nm and 1 kHz

Zilong Zhang, Qiang Liu^*, Mingming Nie, Encai Ji, Mali Gong

^*此作品的通讯作者

Tsinghua University

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the a-axis and c-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the a-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission T and the focal length f of cylindrical lens. With T=40% and f=300 mm, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of M_x²=1.74 and M_y²=1.97 are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed.

源语言	英语
文章编号	7378830
期刊	IEEE Photonics Journal
卷	8
期	1
DOI	https://doi.org/10.1109/JPHOT.2016.2517134
出版状态	已出版 - 2月 2016
已对外发布	是

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title = "880-nm-diode-laser-end-pumped electrooptically Q-switched Nd:YLF laser with high energy and good beam quality at 1047 nm and 1 kHz",

abstract = "An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the a-axis and c-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the a-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission T and the focal length f of cylindrical lens. With T=40% and f=300 mm, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of Mx2=1.74 and My2=1.97 are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed.",

keywords = "Diode-pumped lasers, Q-switched lasers",

author = "Zilong Zhang and Qiang Liu and Mingming Nie and Encai Ji and Mali Gong",

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T1 - 880-nm-diode-laser-end-pumped electrooptically Q-switched Nd:YLF laser with high energy and good beam quality at 1047 nm and 1 kHz

AU - Zhang, Zilong

AU - Liu, Qiang

AU - Nie, Mingming

AU - Ji, Encai

AU - Gong, Mali

PY - 2016/2

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N2 - An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the a-axis and c-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the a-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission T and the focal length f of cylindrical lens. With T=40% and f=300 mm, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of Mx2=1.74 and My2=1.97 are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed.

AB - An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the a-axis and c-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the a-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission T and the focal length f of cylindrical lens. With T=40% and f=300 mm, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of Mx2=1.74 and My2=1.97 are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed.

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880-nm-diode-laser-end-pumped electrooptically Q-switched Nd:YLF laser with high energy and good beam quality at 1047 nm and 1 kHz

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