Compact self-Q-switched Tm:YLF laser at 1.91 μm

B. Zhang; L. Li; C. J. He; F. J. Tian; X. T. Yang; J. H. Cui; J. Z. Zhang; W. M. Sun

doi:10.1016/j.optlastec.2017.10.001

Compact self-Q-switched Tm:YLF laser at 1.91 μm

B. Zhang
, L. Li^*
, C. J. He
, F. J. Tian
, X. T. Yang
, J. H. Cui
, J. Z. Zhang
, W. M. Sun

^*Corresponding author for this work

Harbin Engineering University

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

36 Scopus citations

Abstract

We report self-Q-switching operation in a diode-pumped Tm:YLF bulk laser by exploiting saturable re-absorption under the quasi-three-level regime. Robust self-Q-switched pulse output at 1.91 μm in fundamental mode is demonstrated experimentally with 1.5 at.% doped Tm:YLF crystal. At maximum absorbed pump power of 4.5 W, the average output power and pulse energy are obtained as high as 610 mW and 29 μJ, respectively, with the corresponding slope efficiency of 22%. Pulse repetition rate is tunable in the range of 3–21 kHz with changing the pump power. The dynamics of self-Q-switching of Tm:YLF laser are discussed with the help of a rate equation model showing good agreement with the experiment. The compact self-Q-switched laser near 2 μm has potential application in laser radar systems for accurate wind velocity measurements.

Original language	English
Pages (from-to)	103-108
Number of pages	6
Journal	Optics and Laser Technology
Volume	100
DOIs	https://doi.org/10.1016/j.optlastec.2017.10.001
State	Published - 1 Mar 2018
Externally published	Yes

Keywords

2 μm spectral region
Diode-pumped
Q-switching
Solid-state laser

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10.1016/j.optlastec.2017.10.001

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@article{9631e3d837944e17ad90d5cd9c5eb437,

title = "Compact self-Q-switched Tm:YLF laser at 1.91 μm",

abstract = "We report self-Q-switching operation in a diode-pumped Tm:YLF bulk laser by exploiting saturable re-absorption under the quasi-three-level regime. Robust self-Q-switched pulse output at 1.91 μm in fundamental mode is demonstrated experimentally with 1.5 at.\% doped Tm:YLF crystal. At maximum absorbed pump power of 4.5 W, the average output power and pulse energy are obtained as high as 610 mW and 29 μJ, respectively, with the corresponding slope efficiency of 22\%. Pulse repetition rate is tunable in the range of 3–21 kHz with changing the pump power. The dynamics of self-Q-switching of Tm:YLF laser are discussed with the help of a rate equation model showing good agreement with the experiment. The compact self-Q-switched laser near 2 μm has potential application in laser radar systems for accurate wind velocity measurements.",

keywords = "2 μm spectral region, Diode-pumped, Q-switching, Solid-state laser",

author = "B. Zhang and L. Li and He, \{C. J.\} and Tian, \{F. J.\} and Yang, \{X. T.\} and Cui, \{J. H.\} and Zhang, \{J. Z.\} and Sun, \{W. M.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = mar,

day = "1",

doi = "10.1016/j.optlastec.2017.10.001",

language = "英语",

volume = "100",

pages = "103--108",

journal = "Optics and Laser Technology",

issn = "0030-3992",

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TY - JOUR

T1 - Compact self-Q-switched Tm:YLF laser at 1.91 μm

AU - Zhang, B.

AU - Li, L.

AU - He, C. J.

AU - Tian, F. J.

AU - Yang, X. T.

AU - Cui, J. H.

AU - Zhang, J. Z.

AU - Sun, W. M.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - We report self-Q-switching operation in a diode-pumped Tm:YLF bulk laser by exploiting saturable re-absorption under the quasi-three-level regime. Robust self-Q-switched pulse output at 1.91 μm in fundamental mode is demonstrated experimentally with 1.5 at.% doped Tm:YLF crystal. At maximum absorbed pump power of 4.5 W, the average output power and pulse energy are obtained as high as 610 mW and 29 μJ, respectively, with the corresponding slope efficiency of 22%. Pulse repetition rate is tunable in the range of 3–21 kHz with changing the pump power. The dynamics of self-Q-switching of Tm:YLF laser are discussed with the help of a rate equation model showing good agreement with the experiment. The compact self-Q-switched laser near 2 μm has potential application in laser radar systems for accurate wind velocity measurements.

AB - We report self-Q-switching operation in a diode-pumped Tm:YLF bulk laser by exploiting saturable re-absorption under the quasi-three-level regime. Robust self-Q-switched pulse output at 1.91 μm in fundamental mode is demonstrated experimentally with 1.5 at.% doped Tm:YLF crystal. At maximum absorbed pump power of 4.5 W, the average output power and pulse energy are obtained as high as 610 mW and 29 μJ, respectively, with the corresponding slope efficiency of 22%. Pulse repetition rate is tunable in the range of 3–21 kHz with changing the pump power. The dynamics of self-Q-switching of Tm:YLF laser are discussed with the help of a rate equation model showing good agreement with the experiment. The compact self-Q-switched laser near 2 μm has potential application in laser radar systems for accurate wind velocity measurements.

KW - 2 μm spectral region

KW - Diode-pumped

KW - Q-switching

KW - Solid-state laser

UR - https://www.scopus.com/pages/publications/85031733200

U2 - 10.1016/j.optlastec.2017.10.001

DO - 10.1016/j.optlastec.2017.10.001

M3 - 文章

AN - SCOPUS:85031733200

SN - 0030-3992

VL - 100

SP - 103

EP - 108

JO - Optics and Laser Technology

JF - Optics and Laser Technology

ER -

Compact self-Q-switched Tm:YLF laser at 1.91 μm

Abstract

Keywords

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