Prof. Tianchu Li Profile

Prof. Tianchu Li

Researcher at National Institute of Metrology

SPIE Involvement:

Author

Proceedings Article | 18 April 2021 Poster + Paper

Design of the optical system for 171-ytterbium single-ion optical clock

Yani Zuo, Shaoyang Dai, Shiying Cao, Kun Liu, Weiliang Chen, Lei Han, Fasong Zheng, Tiachu Li, Fang Fang

Proceedings Volume 11772, 1177227 (2021) https://doi.org/10.1117/12.2594943

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Proceedings Article | 18 April 2021 Presentation + Paper

Preliminary progress of the state preparation with a new optical pumping method in a cesium atomic fountain clock

Lei Han, Fang Fang, Yani Zuo, Fasong Zheng, Weiliang Chen, Kun Liu, Shaoyang Dai, Tianchu Li

Proceedings Volume 11771, 117710N (2021) https://doi.org/10.1117/12.2592287

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Proceedings Article | 12 March 2020 Paper

Fountain clocks comparisons in Beijing area

Weiliang Chen, Fang Fang, Kun Liu, Shaoyang Dai, Nianfeng Liu, Tianchu Li

Proceedings Volume 11435, 114350K (2020) https://doi.org/10.1117/12.2555108

KEYWORDS: Microwave radiation, Clocks, Chemical species, Cesium fountain clocks, Switches, Interferometry, Computing systems, Control systems, Magnetism, Black bodies

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Proceedings Article | 25 February 2020 Paper

Advances in strontium optical lattice clocks at NIM

Zhen Sun, Tao Yang, Yige Lin, Qiang Wang, Ye Li, Bingkun Lu, Fei Meng, Shiying Cao, Baike Lin, Tianchu Li, Zhanjun Fang

Proceedings Volume 11296, 112961H (2020) https://doi.org/10.1117/12.2552695

KEYWORDS: Clocks, Strontium, Optical lattice clocks, Laser stabilization, Optical clocks

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Proceedings Article | 15 November 2018 Paper

The ultra-stable microwave based on ultra-stable laser

Shaoyang Dai, Fang Fang, Shiying Cao, Kun Liu, Nianfeng Liu, Weiliang Chen, Tianchu Li

Proceedings Volume 10964, 109642X (2018) https://doi.org/10.1117/12.2505864

KEYWORDS: Clocks, Control systems, Oscillators, Cesium, Fiber lasers, Frequency combs, Laser metrology

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Proceedings Article | 9 November 2018 Paper

The ultra-stable microwave based on ultra-stable laser with robustness and long term stability

Shaoyang Dai, Fang Fang, Kun Liu, Shiying Cao, Nianfeng Liu, Weiliang Chen, Tianchu Li

Proceedings Volume 10825, 1082515 (2018) https://doi.org/10.1117/12.2500185

KEYWORDS: Clocks, Oscillators, Laser stabilization, Signal detection, Cesium, Feedback signals, Fiber lasers, Metrology

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Proceedings Article | 24 October 2017 Paper

The ultra-stable microwave based on ultra-stable laser

Shaoyang Dai, Fang Fang, Shiying Cao, Nianfeng Liu, Tianchu Li

Proceedings Volume 10457, 1045722 (2017) https://doi.org/10.1117/12.2284763

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Proceedings Article | 5 August 2015 Paper

Design of laser system for absolute gravimeter based on 87Rb atom interferometer

Yang Zhao, Shaokai Wang, Wei Zhuang, Fang Fang, Tianchu Li

Proceedings Volume 9621, 96210T (2015) https://doi.org/10.1117/12.2193123

KEYWORDS: Chemical species, Laser stabilization, Raman spectroscopy, Laser systems engineering, Interferometers, Laser development, Bragg cells, Semiconductor lasers, Reliability, 3D metrology

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Proceedings Article | 23 December 2013 Paper

High-finesse F-P cavity external optical feedback narrow linewidth diode laser

Yang Zhao, Shaokai Wang, Zhanjun Fang, Tianchu Li, Erjun Zang

Proceedings Volume 9043, 904304 (2013) https://doi.org/10.1117/12.2037593

KEYWORDS: Laser optics, Semiconductor lasers, Optical isolators, Signal detection, Servomechanisms, Interference (communication), Mirrors, Sensors, Laser systems engineering, Beam splitters

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Proceedings Article | 12 September 2011 Paper

Recent progress of time and frequency research in NIM

Yige Lin, Zhanjun Fang, Tianchu Li

Proceedings Volume 8132, 81320E (2011) https://doi.org/10.1117/12.892944

KEYWORDS: Chemical species, Strontium, Cesium, Clocks, Optical clocks, Time metrology, Frequency combs, Microwave radiation, Semiconductor lasers, Bragg cells

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Proceedings Article | 5 September 2002 Paper

Practical 1.5-um wavelength transfer standard based on acetylene absorption lines

Zhanjun Fang, Tianchu Li, Yuwen Fang, Minming Wang, Qiang Wang, Fei Meng

Proceedings Volume 4913, (2002) https://doi.org/10.1117/12.482247

KEYWORDS: Absorption, Fabry–Perot interferometers, Dense wavelength division multiplexing, Semiconductor lasers, Laser stabilization, Signal detection, Calibration, Telecommunications, Fiber lasers, Tunable lasers

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Proceedings Article | 6 August 1998 Paper

Distance scale calibration of optical fiber OTDR

Yuwen Fang, Jin Qian, Minming Wang, Xuesong Li, Tianchu Li

Proceedings Volume 3552, (1998) https://doi.org/10.1117/12.318004

KEYWORDS: Calibration, Modulation, Optical fibers, Phase shifts, Phase measurement, Optical calibration, Phase shift keying, Metrology, Signal detection, Sensors

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Showing 5 of 12 publications

Conference Committee Involvement (1)

Photonics Asia

5 November 2012 | Beijing, China

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