High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber

Baoquan Yao; Xiaolei Li; Zheng Cui; Tongyu Dai; Shuang Bai; Hongyu Yang; Xiaoming Duan; Youlun Ju

doi:10.1117/1.OE.54.7.076105

High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber

Baoquan Yao
, Xiaolei Li
, Zheng Cui
, Tongyu Dai^*
, Shuang Bai
, Hongyu Yang
, Xiaoming Duan
, Youlun Ju

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

5 Scopus citations

Abstract

A continuous wave (CW) Tm:YAP laser resonantly pumped Ho:YLF laser in CW mode and passive Qswitched (PQS) mode with multilayer graphene as a saturable absorber is reported. A comparison analysis of laser performances with two different output couplers is carried out. In PQS mode, an maximum average output power of 2.26Wis obtained, corresponding to a slope efficiency of 20.7%. The minimum pulse width observed is 651.9 ns with a center wavelength of 2057.16 nm with a 300-mm radius curvature and 50% transmission output coupler. Meanwhile, the maximum pulse repetition frequency of 59.2 kHz is obtained. The beam quality factor of M² was 1.2, which is the near diffraction limit. The results show that multilayer graphene can be used as a saturable absorber in a Ho:YLF laser around a 2-μm wavelength.

Original language	English
Article number	076105
Journal	Optical Engineering
Volume	54
Issue number	7
DOIs	https://doi.org/10.1117/1.OE.54.7.076105
State	Published - 1 Jul 2015

Keywords

Ho:YLF
graphene
passively Q-switched laser

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10.1117/1.OE.54.7.076105

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@article{21d1c4a769e14209a0fe4be6ee7ee8dd,

title = "High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber",

abstract = "A continuous wave (CW) Tm:YAP laser resonantly pumped Ho:YLF laser in CW mode and passive Qswitched (PQS) mode with multilayer graphene as a saturable absorber is reported. A comparison analysis of laser performances with two different output couplers is carried out. In PQS mode, an maximum average output power of 2.26Wis obtained, corresponding to a slope efficiency of 20.7\%. The minimum pulse width observed is 651.9 ns with a center wavelength of 2057.16 nm with a 300-mm radius curvature and 50\% transmission output coupler. Meanwhile, the maximum pulse repetition frequency of 59.2 kHz is obtained. The beam quality factor of M2 was 1.2, which is the near diffraction limit. The results show that multilayer graphene can be used as a saturable absorber in a Ho:YLF laser around a 2-μm wavelength.",

keywords = "Ho:YLF, graphene, passively Q-switched laser",

author = "Baoquan Yao and Xiaolei Li and Zheng Cui and Tongyu Dai and Shuang Bai and Hongyu Yang and Xiaoming Duan and Youlun Ju",

note = "Publisher Copyright: {\textcopyright} 2015 Society of Photo-Optical Instrumentation Engineers.",

year = "2015",

month = jul,

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doi = "10.1117/1.OE.54.7.076105",

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T1 - High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber

AU - Yao, Baoquan

AU - Li, Xiaolei

AU - Cui, Zheng

AU - Dai, Tongyu

AU - Bai, Shuang

AU - Yang, Hongyu

AU - Duan, Xiaoming

AU - Ju, Youlun

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A continuous wave (CW) Tm:YAP laser resonantly pumped Ho:YLF laser in CW mode and passive Qswitched (PQS) mode with multilayer graphene as a saturable absorber is reported. A comparison analysis of laser performances with two different output couplers is carried out. In PQS mode, an maximum average output power of 2.26Wis obtained, corresponding to a slope efficiency of 20.7%. The minimum pulse width observed is 651.9 ns with a center wavelength of 2057.16 nm with a 300-mm radius curvature and 50% transmission output coupler. Meanwhile, the maximum pulse repetition frequency of 59.2 kHz is obtained. The beam quality factor of M2 was 1.2, which is the near diffraction limit. The results show that multilayer graphene can be used as a saturable absorber in a Ho:YLF laser around a 2-μm wavelength.

AB - A continuous wave (CW) Tm:YAP laser resonantly pumped Ho:YLF laser in CW mode and passive Qswitched (PQS) mode with multilayer graphene as a saturable absorber is reported. A comparison analysis of laser performances with two different output couplers is carried out. In PQS mode, an maximum average output power of 2.26Wis obtained, corresponding to a slope efficiency of 20.7%. The minimum pulse width observed is 651.9 ns with a center wavelength of 2057.16 nm with a 300-mm radius curvature and 50% transmission output coupler. Meanwhile, the maximum pulse repetition frequency of 59.2 kHz is obtained. The beam quality factor of M2 was 1.2, which is the near diffraction limit. The results show that multilayer graphene can be used as a saturable absorber in a Ho:YLF laser around a 2-μm wavelength.

KW - Ho:YLF

KW - graphene

KW - passively Q-switched laser

UR - https://www.scopus.com/pages/publications/84937795051

U2 - 10.1117/1.OE.54.7.076105

DO - 10.1117/1.OE.54.7.076105

M3 - 文章

AN - SCOPUS:84937795051

SN - 0091-3286

VL - 54

JO - Optical Engineering

JF - Optical Engineering

IS - 7

M1 - 076105

ER -

High-repetition rate passively Q-switched Ho:YLF laser with graphene as a saturable absorber

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Keywords

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