Prof. Ruifang Dong Profile

Prof. Ruifang Dong

at National Time Service Center, CAS

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 30 November 2023 Open Access

Grid search algorithm applied to auto-lock of ultra-stable laser (Erratum)

Jiayu Bu, Dongdong Jiao, Guanjun Xu, Qi Zang, Tao Liu, Ruifang Dong, Shougang Zhang

Proceedings Volume 12792, 127921T (2023) https://doi.org/10.1117/12.3022230

KEYWORDS: Laser applications, Optoelectronics, Standards development, Laser frequency

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Proceedings Article | 16 October 2023 Paper

Grid search algorithm applied to auto-lock of ultra-stable laser

Jiayu Bu, Dongdong Jiao, Guanjun Xu, Qi Zang, Tao Liu, Ruifang Dong, Shougang Zhang

Proceedings Volume 12792, 127921M (2023) https://doi.org/10.1117/12.2691337

KEYWORDS: Laser frequency, Signal detection, Ferroelectric materials, Laser stabilization, Laser optics, Optical fibers, Laser applications, Fiber lasers, Design and modelling, Computer simulations

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Proceedings Article | 15 December 2022 Paper

The SNR characteristics of quantum microwave photonics in radio-over-fiber systems

Yaqing Jin, Ye Yang, Huibo Hong, Xiao Xiang, Runai Quan, Tao Liu, Shougang Zhang, Ming Li, Ruifang Dong

Proceedings Volume 12478, 124783K (2022) https://doi.org/10.1117/12.2654839

KEYWORDS: Photons, Dispersion, Signal to noise ratio, Frequency modulation, Microwave photonics, Single photon detectors, Radio over Fiber

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Proceedings Article | 15 December 2022 Paper

The comparison between the local and nonlocal entangled wavelength to time mapping

Ye Yang, Xiao Xiang, Yaqing Jin, Tengfei Hao, Jiankun Yang, Wei Li, Ninghua Zhu, Ruifang Dong, Ming Li

Proceedings Volume 12478, 124781M (2022) https://doi.org/10.1117/12.2653581

KEYWORDS: Dispersion, Optical filters, Single photon detectors, Correlation function, Single photon, Signal detection

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Proceedings Article | 1 November 2021 Paper

Sub-kilohertz laser linewidth measurement using a loss-compensated recirculating self-heterodyne method with short fiber

Jing Gao, Dong-Dong Jiao, Jie Liu, Xue Deng, Ruifang Dong, Tao Liu

Proceedings Volume 12057, 120572S (2021) https://doi.org/10.1117/12.2606016

KEYWORDS: Fiber lasers, Signal to noise ratio, Interferometers, Spectrum analysis, Fiber couplers

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Proceedings Article | 9 October 2021 Poster + Presentation + Paper

A 50 km fiber-optic two-way quantum time transfer experiment with long-term stability below 100 fs

Huibo Hong, Runai Quan, Xiao Xiang, Yuting Liu, Junjie Xing, Peng Liu, Mingtao Cao, Tao Liu, Ruifang Dong, Shougang Zhang

Proceedings Volume 11902, 1190216 (2021) https://doi.org/10.1117/12.2601180

KEYWORDS: Clocks, Picosecond phenomena, Fiber optics, Photons, Fiber optics tests, Dispersion, Time metrology, Rubidium, Single photon detectors, Fiber Bragg gratings

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Proceedings Article | 10 October 2020 Presentation + Paper

A versatile single-photon spectrograph for the spectral measurement of the two-photon state

Xiao Xiang, Ruifang Dong, Runai Quan, Yaqing Jin, Ye Yang, Ming Li

Proceedings Volume 11555, 115550K (2020) https://doi.org/10.1117/12.2574997

KEYWORDS: Spectrographs, Continuous wave operation, Quantum information processing, Optical filters, Optical components, Dispersion, Calibration

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Proceedings Article | 10 October 2020 Presentation

Nonlocal wavelength-to-time mapping

Ye Yang, Ming Li, Ruifang Dong, Xiao Xiang, Wei Li, Ninghua Zhu, Tao Liu

Proceedings Volume 11555, 115550O (2020) https://doi.org/10.1117/12.2573540

KEYWORDS: Dispersion, Signal processing, Single photon detectors, Modulation, Signal detection, Superconducting detectors, Nanowires, Knowledge management, Time correlated photon counting

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Proceedings Article | 3 January 2020 Paper

Research progress of 698nm narrow-linewidth lasers applied for Sr atom optical clocks at NTSC

Long Chen, Linbo Zhang, Jun Liu, Guanjun Xu, Chenhui Jiang, Le Fan, Tao Liu, Ruifang Dong, Shougang Zhang

Proceedings Volume 11203, 1120311 (2020) https://doi.org/10.1117/12.2547575

KEYWORDS: Laser stabilization, Optical clocks, Strontium, Chemical species, Laser systems engineering, Semiconductor lasers, Polarization, Standards development, Laser development, Thermography

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Proceedings Article | 15 November 2018 Paper

Tunable hybird optical filter based on a passive cavity for femtosecond lasers

Xiao Xiang, Dongdong Jiao, Tao Liu, Shougang Zhang, Ruifang Dong

Proceedings Volume 10964, 109640G (2018) https://doi.org/10.1117/12.2504234

KEYWORDS: Optical filters, Linear filtering, Tunable filters, Laser stabilization, Oscillators, Bandpass filters, Signal attenuation

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Proceedings Article | 15 November 2018 Paper

Optical frequency transfer over 377 km urban fiber link using EDFAs

Xue Deng, Jie Liu, Qi Zang, Dongdong Jiao, Dan Wang, Xiang Zhang, Weicheng Kong, Ruifang Dong, Tao Liu

Proceedings Volume 10964, 109645L (2018) https://doi.org/10.1117/12.2506390

KEYWORDS: Optical amplifiers, Fiber amplifiers, Signal attenuation, Doppler effect, Rayleigh scattering, Signal to noise ratio, Laser sources

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SPIE Journal Paper | 5 January 2017

698-nm diode laser with 1-Hz linewidth

Long Chen, Linbo Zhang, Guanjun Xu, Jun Liu, Ruifang Dong, Tao Liu

OE, Vol. 56, Issue 01, 016101, (January 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.1.016101

KEYWORDS: Laser stabilization, Semiconductor lasers, Laser applications, Laser systems engineering, Mirrors, Heterodyning, Reflectivity, Temperature metrology, Signal attenuation, Interference (communication)

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Showing 5 of 12 publications

Conference Committee Involvement (4)

Real-time Photonic Measurements, Data Management, and Processing VIII

12 October 2024 | Nantong, Jiangsu, China

Real-time Photonic Measurements, Data Management, and Processing VII

16 October 2023 | Beijing, China

Real-time Photonic Measurements, Data Management, and Processing VI

10 October 2021 | Nantong, JS, China

Real-time Photonic Measurements, Data Management, and Processing V

12 October 2020 | Online Only, China

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