Dr. Yongqin Yu Profile

Dr. Yongqin Yu

at Shenzhen Univ

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 29 March 2019 Paper

Diode-end-pumped actively Q-switched YVO4 Raman laser at 2291nm

Sihou Duan, Xikui Ren, Jian Xie, Yongqin Yu, Chenlin Du

Proceedings Volume 11046, 110461S (2019) https://doi.org/10.1117/12.2524419

KEYWORDS: Raman spectroscopy, Semiconductor lasers, Laser crystals, Q switched lasers, Pulsed laser operation, Diodes, Laser applications, Laser scattering

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Proceedings Article | 10 August 2015 Paper

Measurements of thermo-optic coefficient of standard single mode fiber in large temperature range

Wenyuan Wang, Yongqin Yu, Youfu Geng, Xuejin Li

Proceedings Volume 9620, 96200Y (2015) https://doi.org/10.1117/12.2193091

KEYWORDS: Thermal optics, Temperature metrology, Single mode fibers, Fiber optics, Sensors, Fiber optics tests, Mirrors, Fiber optics sensors, Interferometers, Temperature sensors

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Proceedings Article | 1 July 2015 Paper

Sagnac interferometer based stable phase demodulation system for diaphragm based acoustic sensor

Jun Ma, Yongqin Yu, Wei Jin

Proceedings Volume 9655, 96550D (2015) https://doi.org/10.1117/12.2184271

KEYWORDS: Sensors, Acoustics, Demodulation, Sagnac interferometers, Head, Phase interferometry, Fiber optics sensors, Lead, Control systems

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Proceedings Article | 1 July 2015 Paper

Pressure sensing of Fabry-Perot interferometer with a microchannel demodulated by a FBG

Yongqin Yu, Xue Chen, Quandong Huang, Chenlin Du, Shuangchen Ruan

Proceedings Volume 9655, 96550M (2015) https://doi.org/10.1117/12.2184434

KEYWORDS: Sensors, Fiber Bragg gratings, Single mode fibers, Fiber optics sensors, Fabry–Perot interferometry, Photonic crystal fibers, Laser drilling, Interferometers, Femtosecond laser micromachining, Temperature metrology

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Proceedings Article | 20 December 2013 Paper

Safety monitoring of rail transit by fiber grating sensors

Xiaomei Xu, Xuejin Li, Yuanlong Deng, Xiaoqing Liu, Yongqin Yu, Huasheng Zhou

Proceedings Volume 9044, 90441B (2013) https://doi.org/10.1117/12.2037697

KEYWORDS: Sensors, Safety, Fiber Bragg gratings, Fiber optics sensors, Temperature metrology, Power supplies, Reliability, Temperature sensors, Sensor technology, Environmental sensing

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SPIE Journal Paper | 10 October 2013

Cladding-filled graphene in a photonic crystal fiber as a saturable absorber and its first application for ultrafast all-fiber laser

Junqing Zhao, Shuangchen Ruan, Peiguang Yan, Han Zhang, Yongqin Yu, Huifeng Wei, Jie Luo

OE, Vol. 52, Issue 10, 106105, (October 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.106105

KEYWORDS: Graphene, Photonic crystal fibers, Fiber lasers, Manufacturing, Absorption, Dispersion, Mode locking, Fusion splicing, Ultrafast phenomena, Cladding

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SPIE Journal Paper | 3 June 2013

Bending characteristics of long period fiber grating fabricated upon all-solid photonic bandgap fiber by CO2 laser

Jiarong Zheng, Yongqin Yu, Zhilong Ou, Peiguang Yan, Jishun Wang, Xue Chen, Chenlin Du, Huifeng Wei

OE, Vol. 52, Issue 06, 065002, (June 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.6.065002

KEYWORDS: Polarization, Gas lasers, Temperature metrology, Carbon monoxide, Modulation, Refractive index, Fiber lasers, Silica, Single mode fibers, Optical engineering

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Proceedings Article | 7 November 2012 Paper

An inline ultrasensitive temperature sensor based on liquid-filled photonic crystal fiber Mach-Zehnder modal interferometer

Youfu Geng, Xuejin Li, Xiaoling Tan, Yuanlong Deng, Yongqin Yu

Proceedings Volume 8421, 84216U (2012) https://doi.org/10.1117/12.966832

KEYWORDS: Temperature sensors, Interferometers, Single mode fibers, Photonic crystal fibers, Mach-Zehnder interferometers, Fiber optics sensors, Liquids, Temperature metrology, Physics, Optical fibers

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SPIE Journal Paper | 6 July 2012

Multi-wavelength graphene-based Q-switched erbium-doped fiber laser

Junqing Zhao, Peiguang Yan, Shuangchen Ruan, Yongqin Yu, Geguo Du, Gelin Zhang, Jianqun Cheng, Huifeng Wei, Jie Luo

OE, Vol. 51, Issue 7, 074201, (July 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.7.074201

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Q switched lasers, Graphene, Q switched fiber lasers, Pulsed laser operation, Mode locking, Reflectivity, Fiber optics sensors, Geometrical optics

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Proceedings Article | 30 November 2011 Paper

Temperature and refractive index measurements using long-period fiber gratings fabricated by femtosecond laser

Yongqin Yu, Jiarong Zheng, Kai Yi, Shuangchen Ruan, Chenlin Du, Jianhui Huang, Wansheng Zhong

Proceedings Volume 8307, 83071W (2011) https://doi.org/10.1117/12.904386

KEYWORDS: Refractive index, Femtosecond phenomena, Temperature metrology, Aluminum, Cladding, Fiber lasers, Polymers, Epoxies, Standards development, Pulsed laser operation

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Proceedings Article | 17 May 2011 Paper

A photonic crystal fiber temperature sensor based on forward stimulated fluorescence emission

Xuejin Li, Xueming Hong, Yuanlong Deng, Yongqin Yu, Youfu Geng, Huifeng Wei, Weijun Tong

Proceedings Volume 7753, 77533T (2011) https://doi.org/10.1117/12.884942

KEYWORDS: Luminescence, Liquids, Temperature sensors, Photonic crystal fibers, Refractive index, Temperature metrology, Optical fibers, Fluorescent materials, Modulation, Bioalcohols

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Proceedings Article | 7 October 2010 Paper

Temperature sensor using a long period fiber grating fabricated by 800 nm femtosecond laser pulses

Yongqin Yu, Shuangchen Ruan, Haili Yang, Chenlin Du, Jiarong Zheng

Proceedings Volume 7655, 76550Q (2010) https://doi.org/10.1117/12.865346

KEYWORDS: Femtosecond phenomena, Temperature metrology, Refractive index, Telecommunications, Temperature sensors, Fiber lasers, Standards development, Hydrogen, Pulsed laser operation, Optical filters

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Proceedings Article | 5 October 2009 Paper

Flat supercontinuum generation pumped by femtosecond pulses in zero-dispersion wavelength of photonic crystal fiber

Yuan Guo, Shuangchen Ruan, Yongqin Yu, Chenlin Du, Peiguang Yan

Proceedings Volume 7503, 75037C (2009) https://doi.org/10.1117/12.834566

KEYWORDS: Femtosecond phenomena, Solitons, Photonic crystal fibers, Dispersion, Supercontinuum generation, Scanning probe microscopy, Nonlinear crystals, Four wave mixing, Laser sources, Reflection

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Proceedings Article | 21 May 2009 Paper

Transmission spectra dependence on the grating lengths of long period fiber grating fabricated by 800nm femtosecond laser pulses

Yongqin Yu, Shuangchen Ruan, Yi Huang, Chenlin Du

Proceedings Volume 7282, 72821U (2009) https://doi.org/10.1117/12.830888

KEYWORDS: Femtosecond phenomena, Cladding, Refractive index, Single mode fibers, Fiber lasers, Telecommunications, Pulsed laser operation, Ultraviolet radiation, Glasses, Objectives

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Proceedings Article | 18 November 2008 Paper

Flat supercontinuum generation by nanosecond pulses pumped

Yuan Guo, Shuangchen Ruan, Peiguang Yan, Yongqin Yu, Honglei Wu

Proceedings Volume 7135, 71353T (2008) https://doi.org/10.1117/12.803355

KEYWORDS: Optical fibers, Photonic crystal fibers, Dispersion, Supercontinuum generation, Four wave mixing, Photons, Signal attenuation, Single mode fibers, Ocean optics, Raman scattering

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Proceedings Article | 21 November 2007 Paper

Femtosecond laser pulses micromaching of GaAs, silicon, fused silica, PMMA

Yi Huang, Shuangchen Ruan, Yongqin Yu, Chenlin Du

Proceedings Volume 6724, 672419 (2007) https://doi.org/10.1117/12.782840

KEYWORDS: Silica, Femtosecond phenomena, Gallium arsenide, Waveguides, Silicon, Polymethylmethacrylate, Pulsed laser operation, Diffraction gratings, Laser ablation, Diffraction

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Proceedings Article | 29 January 2007 Paper

The coherence properties of supercontinuum spectra generated in photonic crystal fiber

Yuan Guo, Shuangchen Ruan, Yongqin Yu, Yuncai Wang

Proceedings Volume 6279, 627967 (2007) https://doi.org/10.1117/12.725724

KEYWORDS: Temporal coherence, Michelson interferometers, Photonic crystal fibers, Optical fibers, Microscopes, Objectives, Femtosecond phenomena, Colorimetry, Opacity, Optical isolators

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Proceedings Article | 11 January 2007 Paper

Continuous-wave supercontinuum generation in a 100-m high nonlinear photonics crystal fiber

Yongqin Yu, Shuangchen Ruan, Jihong Zhao, Chenlin Du

Proceedings Volume 6279, 62791B (2007) https://doi.org/10.1117/12.725181

KEYWORDS: Continuous wave operation, Single mode fibers, Fiber lasers, Raman scattering, Supercontinuum generation, Photonic crystal fibers, Raman spectroscopy, Supercontinuum sources, Nonlinear crystals

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Proceedings Article | 28 February 2006 Paper

Diode-end-pumped actively and passively Q-switched Nd:GdVO₄ lasers at 1.34 μm

Chenlin Du, Shuangchen Ruan, Huaijin Zhang, Yongqin Yu

Proceedings Volume 6100, 61001P (2006) https://doi.org/10.1117/12.645028

KEYWORDS: Crystals, Q switched lasers, Q switching, Semiconductor lasers, Pulsed laser operation, Laser crystals, Mirrors, Laser applications, Q switch crystals, Output couplers

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Proceedings Article | 28 January 2006 Paper

Spectral broadening using a polarization-maintaining photonic crystal fiber by an optical parametric amplifier

Yongqin Yu, Shuangchen Ruan, Chenlin Du, Jihong Zhao, Jianchun Zeng

Proceedings Volume 6025, 602507 (2006) https://doi.org/10.1117/12.666987

KEYWORDS: Solitons, Optical fibers, Optical amplifiers, Polarization, Birefringence, Absorption, Dispersion, Photonic crystal fibers, Ocean optics, Fiber amplifiers

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Proceedings Article | 22 December 2005 Paper

High-power diode-end-pumped intracavity frequency-doubled Nd:GdVO₄/LBO red laser

Chenlin Du, Shuangchen Ruan, Yongqin Yu, Feng Zeng

Proceedings Volume 6028, 60280D (2005) https://doi.org/10.1117/12.667127

KEYWORDS: Crystals, Laser crystals, Semiconductor lasers, High power lasers, Continuous wave operation, Second-harmonic generation, Mirrors, Q switching, Nd:YAG lasers

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Showing 5 of 21 publications

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