Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO4 Laser

Xi Wang; Yonggang Wang; Yuzong Gu; Lu Li; Jiang Wang; Xiguang Yang; Zhendong Chen

doi:10.1109/JPHOT.2019.2900272

Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO₄ Laser

Xi Wang, Yonggang Wang, Yuzong Gu, Lu Li, Jiang Wang, Xiguang Yang, Zhendong Chen

科研成果: 期刊稿件 › 文章 › 同行评审

8 引用（Scopus）

摘要

A high-Transmittance ultra-Thin titanium dioxide (TiO₂) film saturable absorber (SA) fabricated by Langmuir-Blodgett (LB) technology is reported and used for the first time to obtain passively Q-switched pulses from a solid-state laser. The optical loss of pure TiO₂ LB film at a wavelength of 1 μm is only 6.5%, and the nonlinear modulation depth, saturation intensity, and non-saturable loss of the entire TiO₂ SA device are 4.3%, 0.125 MW/cm², and 9.8%, respectively. Intrinsic high stability and heat resistance of TiO₂ nanomaterials contribute to a laser output with average power (2.35 W) and a corresponding laser pulse width and repetition rate of 173 ns and 2.008 MHz, respectively. The laser output with the pulse energy of 1.17 μJ and peak power of 6.76 W indicates the excellent potential of TiO₂ nanomaterials for applications in solid-state pulsed lasers.

源语言	英语
文章编号	8653901
期刊	IEEE Photonics Journal
卷	11
期	2
DOI	https://doi.org/10.1109/JPHOT.2019.2900272
出版状态	已出版 - 4月 2019
已对外发布	是

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title = "Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO4 Laser",

abstract = "A high-Transmittance ultra-Thin titanium dioxide (TiO2) film saturable absorber (SA) fabricated by Langmuir-Blodgett (LB) technology is reported and used for the first time to obtain passively Q-switched pulses from a solid-state laser. The optical loss of pure TiO2 LB film at a wavelength of 1 μm is only 6.5%, and the nonlinear modulation depth, saturation intensity, and non-saturable loss of the entire TiO2 SA device are 4.3%, 0.125 MW/cm2, and 9.8%, respectively. Intrinsic high stability and heat resistance of TiO2 nanomaterials contribute to a laser output with average power (2.35 W) and a corresponding laser pulse width and repetition rate of 173 ns and 2.008 MHz, respectively. The laser output with the pulse energy of 1.17 μJ and peak power of 6.76 W indicates the excellent potential of TiO2 nanomaterials for applications in solid-state pulsed lasers.",

keywords = "nonlinear optical materials., Q-switched laser, saturable absorber, solid-state laser",

author = "Xi Wang and Yonggang Wang and Yuzong Gu and Lu Li and Jiang Wang and Xiguang Yang and Zhendong Chen",

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

year = "2019",

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T1 - Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO4 Laser

AU - Wang, Xi

AU - Wang, Yonggang

AU - Gu, Yuzong

AU - Li, Lu

AU - Wang, Jiang

AU - Yang, Xiguang

AU - Chen, Zhendong

PY - 2019/4

Y1 - 2019/4

N2 - A high-Transmittance ultra-Thin titanium dioxide (TiO2) film saturable absorber (SA) fabricated by Langmuir-Blodgett (LB) technology is reported and used for the first time to obtain passively Q-switched pulses from a solid-state laser. The optical loss of pure TiO2 LB film at a wavelength of 1 μm is only 6.5%, and the nonlinear modulation depth, saturation intensity, and non-saturable loss of the entire TiO2 SA device are 4.3%, 0.125 MW/cm2, and 9.8%, respectively. Intrinsic high stability and heat resistance of TiO2 nanomaterials contribute to a laser output with average power (2.35 W) and a corresponding laser pulse width and repetition rate of 173 ns and 2.008 MHz, respectively. The laser output with the pulse energy of 1.17 μJ and peak power of 6.76 W indicates the excellent potential of TiO2 nanomaterials for applications in solid-state pulsed lasers.

AB - A high-Transmittance ultra-Thin titanium dioxide (TiO2) film saturable absorber (SA) fabricated by Langmuir-Blodgett (LB) technology is reported and used for the first time to obtain passively Q-switched pulses from a solid-state laser. The optical loss of pure TiO2 LB film at a wavelength of 1 μm is only 6.5%, and the nonlinear modulation depth, saturation intensity, and non-saturable loss of the entire TiO2 SA device are 4.3%, 0.125 MW/cm2, and 9.8%, respectively. Intrinsic high stability and heat resistance of TiO2 nanomaterials contribute to a laser output with average power (2.35 W) and a corresponding laser pulse width and repetition rate of 173 ns and 2.008 MHz, respectively. The laser output with the pulse energy of 1.17 μJ and peak power of 6.76 W indicates the excellent potential of TiO2 nanomaterials for applications in solid-state pulsed lasers.

KW - nonlinear optical materials.

KW - Q-switched laser

KW - saturable absorber

KW - solid-state laser

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SN - 1943-0655

VL - 11

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

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Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO4 Laser

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Titanium Dioxide Langmuir-Blodgett Film Saturable Absorber for Passively Q-switched Nd:GdVO₄ Laser