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

^*Corresponding author for this work

Tsinghua University

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

4 Citations (Scopus)

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 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.

Original language	English
Article number	7378830
Journal	IEEE Photonics Journal
Volume	8
Issue number	1
DOIs	https://doi.org/10.1109/JPHOT.2016.2517134
Publication status	Published - Feb 2016
Externally published	Yes

Keywords

Diode-pumped lasers
Q-switched lasers

Access to Document

10.1109/JPHOT.2016.2517134

Cite this

@article{0e6119317c32403395fa38badcfef5fb,

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",

note = "Publisher Copyright: {\textcopyright} 2009-2012 IEEE.",

year = "2016",

month = feb,

doi = "10.1109/JPHOT.2016.2517134",

language = "English",

volume = "8",

journal = "IEEE Photonics Journal",

issn = "1943-0655",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "1",

}

TY - JOUR

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

Y1 - 2016/2

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.

KW - Diode-pumped lasers

KW - Q-switched lasers

UR - http://www.scopus.com/inward/record.url?scp=84962427523&partnerID=8YFLogxK

U2 - 10.1109/JPHOT.2016.2517134

DO - 10.1109/JPHOT.2016.2517134

M3 - Article

AN - SCOPUS:84962427523

SN - 1943-0655

VL - 8

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

IS - 1

M1 - 7378830

ER -

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

Keywords

Access to Document

Other files and links

Fingerprint

Cite this