A compact passively Q-switched Tm-Ho codoped crystal laser at 2 µm with narrow pulse duration

Yanqiu Du; Baoquan Yao; Tongyu Dai; Xiaojie Chen; Chun Yu Shang

doi:10.1016/j.ijleo.2021.167358

A compact passively Q-switched Tm-Ho codoped crystal laser at 2 µm with narrow pulse duration

Yanqiu Du
, Baoquan Yao^*
, Tongyu Dai
, Xiaojie Chen
, Chun Yu Shang

^*Corresponding author for this work

School of Astronautics

Harbin Engineering University
Heilongjiang University of Science and Technology

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

4 Scopus citations

Abstract

A Tm,Ho:YVO₄ laser with compact geometry was demonstrated and analyzed. For the continuous wave laser, the slope efficiency of 30.5% was achieved. By inserting a Cr:ZnS saturable absorber into the cavity, the passively Q-switched laser generated almost constant pulse duration of 83 ns with the slope efficiency of 19.3%. The pulse energy was also independent of the pump power, around 130μJ. Through increasing the pump power from 3.7 W to 8.1 W, the pulse repetition varied approximately linearly from 2.9 kHz to 6.8 kHz. The Q-switch efficiency of the PQS laser is up to 58% at the maximum pump power.

Original language	English
Article number	167358
Journal	Optik
Volume	243
DOIs	https://doi.org/10.1016/j.ijleo.2021.167358
State	Published - Oct 2021

Keywords

Infrared and far-infrared lasers (140.3070)
Lasers, Q-switched (140.3540)
Lasers, diode-pumped (140.3480)
Lasers, solid-state (140.3580)

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10.1016/j.ijleo.2021.167358

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@article{9dc7688f67974d1ba40d3f80720582fa,

title = "A compact passively Q-switched Tm-Ho codoped crystal laser at 2 µm with narrow pulse duration",

abstract = "A Tm,Ho:YVO4 laser with compact geometry was demonstrated and analyzed. For the continuous wave laser, the slope efficiency of 30.5\% was achieved. By inserting a Cr:ZnS saturable absorber into the cavity, the passively Q-switched laser generated almost constant pulse duration of 83 ns with the slope efficiency of 19.3\%. The pulse energy was also independent of the pump power, around 130μJ. Through increasing the pump power from 3.7 W to 8.1 W, the pulse repetition varied approximately linearly from 2.9 kHz to 6.8 kHz. The Q-switch efficiency of the PQS laser is up to 58\% at the maximum pump power.",

keywords = "Infrared and far-infrared lasers (140.3070), Lasers, Q-switched (140.3540), Lasers, diode-pumped (140.3480), Lasers, solid-state (140.3580)",

author = "Yanqiu Du and Baoquan Yao and Tongyu Dai and Xiaojie Chen and Shang, \{Chun Yu\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier GmbH",

year = "2021",

month = oct,

doi = "10.1016/j.ijleo.2021.167358",

language = "英语",

volume = "243",

journal = "Optik",

issn = "0030-4026",

publisher = "Elsevier GmbH",

}

TY - JOUR

T1 - A compact passively Q-switched Tm-Ho codoped crystal laser at 2 µm with narrow pulse duration

AU - Du, Yanqiu

AU - Yao, Baoquan

AU - Dai, Tongyu

AU - Chen, Xiaojie

AU - Shang, Chun Yu

PY - 2021/10

Y1 - 2021/10

N2 - A Tm,Ho:YVO4 laser with compact geometry was demonstrated and analyzed. For the continuous wave laser, the slope efficiency of 30.5% was achieved. By inserting a Cr:ZnS saturable absorber into the cavity, the passively Q-switched laser generated almost constant pulse duration of 83 ns with the slope efficiency of 19.3%. The pulse energy was also independent of the pump power, around 130μJ. Through increasing the pump power from 3.7 W to 8.1 W, the pulse repetition varied approximately linearly from 2.9 kHz to 6.8 kHz. The Q-switch efficiency of the PQS laser is up to 58% at the maximum pump power.

AB - A Tm,Ho:YVO4 laser with compact geometry was demonstrated and analyzed. For the continuous wave laser, the slope efficiency of 30.5% was achieved. By inserting a Cr:ZnS saturable absorber into the cavity, the passively Q-switched laser generated almost constant pulse duration of 83 ns with the slope efficiency of 19.3%. The pulse energy was also independent of the pump power, around 130μJ. Through increasing the pump power from 3.7 W to 8.1 W, the pulse repetition varied approximately linearly from 2.9 kHz to 6.8 kHz. The Q-switch efficiency of the PQS laser is up to 58% at the maximum pump power.

KW - Infrared and far-infrared lasers (140.3070)

KW - Lasers, Q-switched (140.3540)

KW - Lasers, diode-pumped (140.3480)

KW - Lasers, solid-state (140.3580)

UR - https://www.scopus.com/pages/publications/85108061634

U2 - 10.1016/j.ijleo.2021.167358

DO - 10.1016/j.ijleo.2021.167358

M3 - 文章

AN - SCOPUS:85108061634

SN - 0030-4026

VL - 243

JO - Optik

JF - Optik

M1 - 167358

ER -

A compact passively Q-switched Tm-Ho codoped crystal laser at 2 µm with narrow pulse duration

Abstract

Keywords

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