Mr. Yunfeng Bai Profile

Yunfeng Bai

at Soochow Univ

SPIE Involvement:

Author

Publications (6)

SPIE Journal Paper | 17 May 2021

Method for temperature measurement of taper long-period fiber Bragg grating

Zhang Hao, Xinfeng Yu, Zhu Yu, Yunfeng Bai, Yongqiang Tian, Suihu Dang

OE, Vol. 60, Issue 05, 050501, (May 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.050501

KEYWORDS: Temperature metrology, Fiber Bragg gratings, Light sources, Cladding, Optical engineering, Temperature sensors, Spectroscopy, Sensors, Refractive index, Single mode fibers

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Proceedings Article | 26 January 2021 Paper

The dual-wavelength ratio temperature measurement through helical long-period gratings

Quanzhen Bao, Yunfeng Bai

Proceedings Volume 11767, 117670I (2021) https://doi.org/10.1117/12.2592294

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Proceedings Article | 8 March 2017 Paper

A 9.8-W,a-cut Tm, Ho:YAP laser pumped by two laser diodes

Linjun Li, Xining Yang, Wei Wang, Yunfeng Bai, Xiaoyang Yu

Proceedings Volume 10255, 102555A (2017) https://doi.org/10.1117/12.2269078

KEYWORDS: Semiconductor lasers, Continuous wave operation, Crystals, Laser crystals, Thulium, Lenses, Mirrors, Laser applications, Ocean optics, Lithium

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Proceedings Article | 19 February 2015 Paper

Upconversion photoluminescence and EXAFS of Er3+ and Ho3+ codoped with Li+ ion

Yunfeng Bai, Yuxiao Wang, Long Zhou, Yinglin Song

Proceedings Volume 9449, 944913 (2015) https://doi.org/10.1117/12.2074987

KEYWORDS: Ions, Nanocrystals, Upconversion, Zinc oxide, Doping, Crystals, Luminescence, Infrared radiation, Lithium, Spectroscopy

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Proceedings Article | 21 February 2014 Paper

Polarization measurement through combination polarizers

Yunfeng Bai, Linjun Li, Zhelong He, Yanwei Liu, Cheng Ma, Guang Shi, Lu Liu

Proceedings Volume 9142, 91421L (2014) https://doi.org/10.1117/12.2054191

KEYWORDS: Polarizers, Polarization, Diffraction, Diffraction gratings, Far-field diffraction, Charge-coupled devices, Wave plates, Sensors, Binary data, Optical design

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Proceedings Article | 24 August 2009 Paper

High thermal sensitivity of Er[sup]3+[/sup] and Li[sup]+[/sup] codoped Y[sub]2[/sub]O[sub]3[/sub] nanocrystals under 976 nm excitation

Yunfeng Bai, Yuxiao Wang, Ruigang Yan, Le Yang, Lu Liu, Yinglin Song

Proceedings Volume 7381, 73810B (2009) https://doi.org/10.1117/12.834106

KEYWORDS: Nanocrystals, Luminescence, Upconversion, Temperature metrology, Temperature sensors, Ions, Erbium, Sol-gels, Sensors, Lithium

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Showing 5 of 6 publications

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