Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser

Qinan Li; Sumei Wang; Shifeng Du; Yuxian Shi; Jie Xing; Dongxiang Zhang; Baohua Feng; Zhiguo Zhang; Shiwen Zhang

doi:10.1016/j.optcom.2007.12.003

Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser

Qinan Li^*, Sumei Wang, Shifeng Du, Yuxian Shi, Jie Xing, Dongxiang Zhang, Baohua Feng, Zhiguo Zhang, Shiwen Zhang

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

A simultaneous self-Q-switched and mode-locked diode-pumped 946 nm laser by using a Cr,Nd:YAG crystal as gain medium as well as saturable absorber is demonstrated for the first time as we know. The maximum average output power of 751 mW with a slope efficiency of 18.38% is obtained at an intra-cavity average peak power intensity of 4.83 × 10⁶ W/cm². Under this circumstance, the repetition rate of Q-switched envelopes is 9.63 kHz and the pulse width is about 460 ns. Almost 100% mode-locked modulation depth is obtained at all time in the experiment process whether the incident pump power is low or high. The repetition rate of mode-locked pulses within a Q-switched envelope is 135.13 MHz and the mode-locked pulse width is within 600 ps. The laser produces high-quality pulses in TEM₀₀-mode in the simultaneous self-Q-switched and mode-locked experiment.

Original language	English
Pages (from-to)	2184-2188
Number of pages	5
Journal	Optics Communications
Volume	281
Issue number	8
DOIs	https://doi.org/10.1016/j.optcom.2007.12.003
Publication status	Published - 15 Apr 2008
Externally published	Yes

Keywords

Cr,Nd:YAG crystal
Quasi-three-level
Self-Q-switched and mode-locked

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10.1016/j.optcom.2007.12.003

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title = "Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser",

abstract = "A simultaneous self-Q-switched and mode-locked diode-pumped 946 nm laser by using a Cr,Nd:YAG crystal as gain medium as well as saturable absorber is demonstrated for the first time as we know. The maximum average output power of 751 mW with a slope efficiency of 18.38% is obtained at an intra-cavity average peak power intensity of 4.83 × 106 W/cm2. Under this circumstance, the repetition rate of Q-switched envelopes is 9.63 kHz and the pulse width is about 460 ns. Almost 100% mode-locked modulation depth is obtained at all time in the experiment process whether the incident pump power is low or high. The repetition rate of mode-locked pulses within a Q-switched envelope is 135.13 MHz and the mode-locked pulse width is within 600 ps. The laser produces high-quality pulses in TEM00-mode in the simultaneous self-Q-switched and mode-locked experiment.",

keywords = "Cr,Nd:YAG crystal, Quasi-three-level, Self-Q-switched and mode-locked",

author = "Qinan Li and Sumei Wang and Shifeng Du and Yuxian Shi and Jie Xing and Dongxiang Zhang and Baohua Feng and Zhiguo Zhang and Shiwen Zhang",

year = "2008",

month = apr,

day = "15",

doi = "10.1016/j.optcom.2007.12.003",

language = "English",

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T1 - Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser

AU - Li, Qinan

AU - Wang, Sumei

AU - Du, Shifeng

AU - Shi, Yuxian

AU - Xing, Jie

AU - Zhang, Dongxiang

AU - Feng, Baohua

AU - Zhang, Zhiguo

AU - Zhang, Shiwen

PY - 2008/4/15

Y1 - 2008/4/15

N2 - A simultaneous self-Q-switched and mode-locked diode-pumped 946 nm laser by using a Cr,Nd:YAG crystal as gain medium as well as saturable absorber is demonstrated for the first time as we know. The maximum average output power of 751 mW with a slope efficiency of 18.38% is obtained at an intra-cavity average peak power intensity of 4.83 × 106 W/cm2. Under this circumstance, the repetition rate of Q-switched envelopes is 9.63 kHz and the pulse width is about 460 ns. Almost 100% mode-locked modulation depth is obtained at all time in the experiment process whether the incident pump power is low or high. The repetition rate of mode-locked pulses within a Q-switched envelope is 135.13 MHz and the mode-locked pulse width is within 600 ps. The laser produces high-quality pulses in TEM00-mode in the simultaneous self-Q-switched and mode-locked experiment.

AB - A simultaneous self-Q-switched and mode-locked diode-pumped 946 nm laser by using a Cr,Nd:YAG crystal as gain medium as well as saturable absorber is demonstrated for the first time as we know. The maximum average output power of 751 mW with a slope efficiency of 18.38% is obtained at an intra-cavity average peak power intensity of 4.83 × 106 W/cm2. Under this circumstance, the repetition rate of Q-switched envelopes is 9.63 kHz and the pulse width is about 460 ns. Almost 100% mode-locked modulation depth is obtained at all time in the experiment process whether the incident pump power is low or high. The repetition rate of mode-locked pulses within a Q-switched envelope is 135.13 MHz and the mode-locked pulse width is within 600 ps. The laser produces high-quality pulses in TEM00-mode in the simultaneous self-Q-switched and mode-locked experiment.

KW - Cr,Nd:YAG crystal

KW - Quasi-three-level

KW - Self-Q-switched and mode-locked

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DO - 10.1016/j.optcom.2007.12.003

M3 - Article

AN - SCOPUS:39649123532

SN - 0030-4018

VL - 281

SP - 2184

EP - 2188

JO - Optics Communications

JF - Optics Communications

IS - 8

ER -

Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser

Abstract

Keywords

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