A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping

Liwei Xu; Wentao Wu; Yingyi Li; Xudong Li; Youlun Ju; Tongyu Dai

doi:10.1088/1612-202X/ab00fe

A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping

Liwei Xu
, Wentao Wu
, Yingyi Li
, Xudong Li
, Youlun Ju
, Tongyu Dai

School of Astronautics, Harbin Institute of Technology

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

10 Scopus citations

Abstract

We demonstrated a compact gain-switched electro-optical Q-switched 1064 nm Nd:YAG laser by 885 nm laser diode pulsed-end pumping at the pulse repetition frequency of 2 kHz. In free-running mode, an output power of 14.44 W was obtained under the absorbed pump power of 23.31 W, and the slope efficiency of 77.2% approached the theoretical limitation. In Q-switching mode, we obtained a maximum single pulse energy of 3 mJ with a pulse width of 6.5 ns, corresponding to a peak power of 462 kW with a beam quality factor M ² of 1.6.

Original language	English
Article number	045001
Journal	Laser Physics Letters
Volume	16
Issue number	4
DOIs	https://doi.org/10.1088/1612-202X/ab00fe
State	Published - 15 Feb 2019
Externally published	Yes

Keywords

Nd:YAG
Q-switched
direct pumping
end-pumped
gain-switched

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10.1088/1612-202X/ab00fe

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title = "A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping",

abstract = " We demonstrated a compact gain-switched electro-optical Q-switched 1064 nm Nd:YAG laser by 885 nm laser diode pulsed-end pumping at the pulse repetition frequency of 2 kHz. In free-running mode, an output power of 14.44 W was obtained under the absorbed pump power of 23.31 W, and the slope efficiency of 77.2\% approached the theoretical limitation. In Q-switching mode, we obtained a maximum single pulse energy of 3 mJ with a pulse width of 6.5 ns, corresponding to a peak power of 462 kW with a beam quality factor M 2 of 1.6.",

keywords = "Nd:YAG, Q-switched, direct pumping, end-pumped, gain-switched",

author = "Liwei Xu and Wentao Wu and Yingyi Li and Xudong Li and Youlun Ju and Tongyu Dai",

note = "Publisher Copyright: {\textcopyright} 2019 Astro Ltd.",

year = "2019",

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day = "15",

doi = "10.1088/1612-202X/ab00fe",

language = "英语",

volume = "16",

journal = "Laser Physics Letters",

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TY - JOUR

T1 - A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping

AU - Xu, Liwei

AU - Wu, Wentao

AU - Li, Yingyi

AU - Li, Xudong

AU - Ju, Youlun

AU - Dai, Tongyu

PY - 2019/2/15

Y1 - 2019/2/15

N2 - We demonstrated a compact gain-switched electro-optical Q-switched 1064 nm Nd:YAG laser by 885 nm laser diode pulsed-end pumping at the pulse repetition frequency of 2 kHz. In free-running mode, an output power of 14.44 W was obtained under the absorbed pump power of 23.31 W, and the slope efficiency of 77.2% approached the theoretical limitation. In Q-switching mode, we obtained a maximum single pulse energy of 3 mJ with a pulse width of 6.5 ns, corresponding to a peak power of 462 kW with a beam quality factor M 2 of 1.6.

AB - We demonstrated a compact gain-switched electro-optical Q-switched 1064 nm Nd:YAG laser by 885 nm laser diode pulsed-end pumping at the pulse repetition frequency of 2 kHz. In free-running mode, an output power of 14.44 W was obtained under the absorbed pump power of 23.31 W, and the slope efficiency of 77.2% approached the theoretical limitation. In Q-switching mode, we obtained a maximum single pulse energy of 3 mJ with a pulse width of 6.5 ns, corresponding to a peak power of 462 kW with a beam quality factor M 2 of 1.6.

KW - Nd:YAG

KW - Q-switched

KW - direct pumping

KW - end-pumped

KW - gain-switched

UR - https://www.scopus.com/pages/publications/85064914346

U2 - 10.1088/1612-202X/ab00fe

DO - 10.1088/1612-202X/ab00fe

M3 - 文章

AN - SCOPUS:85064914346

SN - 1612-2011

VL - 16

JO - Laser Physics Letters

JF - Laser Physics Letters

IS - 4

M1 - 045001

ER -

A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping

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Keywords

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