Jingbiao Chen

jbchen@pku.edu.cn

Education

1.Ph.D. in Radio Physics, Peking University, Sep. 1995 - Mar. 1999

2.M.S. in Nonlinear Optics, Peking University, Sep. 1992 - Jul. 1995

a

3.B.S. in Physics, Hangzhou University, Sep. 1986 - Jul. 1990a

Experience

1.Researcher, Hefei National Laboratory, Sep. 2022 - Present

2.Professor & Associate Director, School of Electronics, Peking University, Aug. 2009 - Present

3.Postdoctoral Researcher, Department of Physics, Pennsylvania State University, Dec. 2001 - Dec. 2004

4.Associate Professor, Department of Electronics, Peking University, Aug. 2001 - Jul. 2009

Overview of Academic Research

Professor Chen Jingbiao has long been engaged in research on quantum frequency standards (atomic clocks), novel lasers and spectroscopy, atomic filters, etc., accumulating extensive research experience in the fields of quantum precision measurement, high-precision atomic clocks, and frequency-stabilized semiconductor lasers.

In 2005, Professor Chen innovatively utilized the stimulated radiation of atoms in a bad cavity as the direct output signal of the clock, breaking through the technical bottleneck of the local oscillator laser in traditional passive optical clocks, which was limited by the thermal noise of the cavity length. This achievement attracted the attention of more than 20 research institutions in the United States, Europe, and other regions, generating extensive international influence.

In 2005, he proposed an energy-level transfer detection scheme for calcium atomic beam optical clocks. This scheme significantly improved the signal-to-noise ratio of the calcium atomic beam optical clocks, which has been widely adopted by many international research groups and remains in use today.

In 2011, he proposed an external cavity laser using an anti-reflection-coated semiconductor laser diode as the gain medium and an atomic filter as the frequency-selective device. This concept has been recognized and increasingly adopted by the international academic community. The Faraday laser provides a novel frequency-stabilized semiconductor laser immune to environmental temperature variations and semiconductor current noise, contributing significantly to quantum precision measurement technologies and generating notable industrial impact.

Since 2018, the laser frequency stabilization system developed by Professor Chen has been applied to the TA2000 optical pumped cesium clock of Chengdu Spaceon Group Co., Ltd., significantly improving the clock’s stability. The performance is six times higher than that of the 5071A high-quality tube embargoed by the United States to China.

In 2022, he proposed the velocity grating-based quantum detection mechanism , which has greatly enhanced the atomic utilization efficiency in thermal atomic beam systems and made the short-term stability limit of the calcium atomic beam optical clock comparable to that of the cold-atom system. This mechanism has been cited by the U.S. Naval Observatory and applied in the research and development of the next-generation GPS timekeeping clock in the United States. Meanwhile, he proposed the concepts and principles of the Michelson laser and the quantum frequency goniometer, leveraging the advantages of frequency measurement to achieve ultra-high-precision displacement and angle measurements.

To date, Professor Chen has published more than 100 papers in domestic and international academic journals and been granted over 100 domestic and international patents. He has also presided over major research programs of the National Natural Science Foundation, the National 863 Program, the National Science and Technology Cooperation Special Project, and National Major Scientific Instrument Development Projects.

Major Honors and Awards

1.First Prize of the Invention and Entrepreneurship Award of China Invention Association, 2025 (Principal Investigator)

2.Gold Medal at the 50th Geneva International Exhibition of Inventions, 2025 (Principal Investigator)

3.First Prize of the Science and Technology Progress Award of China Metrology and Testing Society, 2024 (Principal Investigator)

4.Gold Medal at the 28th National Invention Exhibition, 2024 (Principal Investigator)

5.First Prize of the GF Science and Technology Progress Award, 2024 (Second Contributor)

6.First Prize of the Science and Technology Progress Award of China Aerospace Science and Industry Corporation, 2024 (Second Contributor)

7.Second Prize of the Beijing Municipal Science and Technology Invention Award, 2023 (Principal Investigator)

8.Second Prize of the Technological Invention Award of China Instrument and Control Society, 2023 (Principal Investigator)

Representative Publications

1.Z. Liu et al. Turn-key Voigt optical frequency standard. Photonics Research 13, 1083-1093 (2025).

2.J. Miao et al. Single-atomic-ensemble dual-wavelength optical frequency standard. Photonics Research 13, 721-727 (2025).

3.J. Zhang et al. An extremely bad-cavity laser. npj Quantum Information 10, 87 (2024).

4.T. Shi et al. Dual-frequency optical-microwave atomic clocks based on cesium atoms. Photonics Research 12, 1972-1980 (2024).

5.J. Zhang et al. Power-stabilized 3-W blue laser locked to the 420-nm transition in rubidium. Physical Review Applied 22, 034045 (2024).

6.X. Qin et al. Switchable Faraday laser with frequencies of 85Rb and 87Rb 780 nm transitions using a single isotope 87Rb Faraday atomic filter. Applied Physics Letters 124, 161104 (2024).

7.Z. Liu et al. An atomic filter laser with a compact Voigt anomalous dispersion optical filter. Applied Physics Letters 123, 131103 (2023).

8.T. Shi et al. Anti-resonant Fabry-Pérot cavity with ultralow finesse. Physical Review A 107, 023517 (2023).

9.T. Shi et al. An inhibited laser. Communications Physics 5, 208 (2022).

10.J. Miao et al. Compact 459-nm Cs cell optical frequency standard with 2.1×10-13/√τ short-term stability. Physical Review Applied 18, 024034 (2022).

11.P. Chang et al. Frequency-stabilized Faraday laser with 1E-14 short-term instability for atomic clocks. Applied Physics Letters 120, 141102 (2022).

12.R. Zhang et al. Recording brain activities in unshielded Earth’s field with optically pumped atomic magnetometer. Science Advances 6, eaba8792 (2020).

13.X. Xue et al. Faraday anomalous dispersion optical filter at 133Cs weak 459 nm transition. Photonics Research 3, 275-278 (2015).

14.J. Chen. Active optical clock. Chinese Science Bulletin 54, 348-352 (2009).

15.D. Yu et al. Optical clock with millihertz linewidth based on a phase-matching effect. Physics Review Letters 98, 050801 (2007).