Personal profile

Zhao Qilai, associate professor and doctoral supervisor, received support from the Guangzhou Youth Science and Technology Talent Promotion Project. I have been engaged in basic and applied research on single frequency fiber lasers for a long time, and have successfully achieved various high-performance single frequency fiber lasers such as ultra-low intensity noise, ultra narrow linewidth, and absolute frequency stability. Published over 50 papers in SCI journals such as Photonics Research, Optics Letters, and Optics Express. The research achievement was nominated for the Five Year Excellent Achievement Award for Fiber Laser by the Chinese Society of Optical Engineering (1/3). Invited presentations at academic conferences such as AFL, LTO, LMN, National Conference on Electronic Information Materials and Devices, and Seminar on the Development of Single Frequency Fiber Laser Technology.

Research directions

Basic theory and performance improvement research of single frequency fiber laser, as well as its application research in precision physical detection, signal transmission and detection, biophotonics and other fields.

Education and Work Experience

From April 2024 to present, Associate Professor, School of Physics and Optoelectronics, South China University of Technology. 

From April 2021 to April 2024, Postdoctoral/Assistant Researcher, Supervisor: Yang Zhongmin.

From September 2017 to December 2020, Ph.D., School of Materials Science, Microelectronics and Solid State Electronics, South China University of Technology. Supervisor: Xu Shanhui. 

From September 2014 to June 2017, Master's degree in Optics, School of Physics and Optoelectronics, South China University of Technology. 

Supervisor: Yang Zhongmin. From September 2010 to June 2014, Bachelor's degree in Optical Information Science and Technology, School of Physics and Optoelectronics, South China University of Technology.

Representative paper results 

[1] National Natural Science Foundation of China Youth Project, 2023.01-2025.12, 300000 yuan, host, under research. 

[2] ZF Equipment Pre Research Shared Technology Project, 2024-20251235 million yuan, led and under development. 

[3] The sub project of the National Key Research and Development Program, with a budget of 2022.11-2025.1017892 million yuan, is being led and researched. 

[4] Guangzhou Youth Science and Technology Talent Support Project, from January 2023.01 to December 2024.12, with a budget of 100000 yuan, hosted and under research. 

[5] Guangdong Provincial Natural Science Foundation - General Project, January 2022-2024.12, 100000 yuan, Hosted, under research. 

[6] Basic Research in Natural Sciences for Central Universities - General Project, January 2024-2025.12, Hosted, currently under research..

[1]  J. Li, C. Yang, Q. Zhao*, D. Liu, S. Mo, C. Zeng, Z. Yang, and S. Xu, Efficient DBR Single-Frequency Er3+/Yb3+ Co-Doped Phosphate Fiber Laser Operating at 1500 nm, Journal of Lightwave Technology, 2024,

[2]  Y. Sun, C. Wang, Q. Zhao*, C. Yang, C. Zeng, W. Lin, Z. Feng, Z. Yang, and S. Xu*, 10 W super-wideband ultra-low-intensity-noise single-frequency fiber laser at 1 µm, Optics. Express, 2024, 32(7): 11419-11428

[3]  C. Zeng, Q. Zhao*, C. Yang, Y. Sun, J. Li, C. Wang, J. Zheng, Z. Yang, and S. Xu, Frequency-stabilized improvement of saturated absorption spectroscopy based on laser linewidth-control strategy, Optics Letters, 2024, 49(3): 434-437

[4]  J. Li, C. Yang, K. Jiang, Q. Zhao*, S. Mo, Y. Duan, Y. Zhang, L. Li, S. Zhou, Z. Feng, Z. Yang, and S. Xu, Single-frequency fiber laser at 1627nm based on a self-designed Er-doped hybridized glass fiber, Optics Letters, 2023, 48(23): 6116-6119

[5]  C. Deng, # Q. Zhao#, *, Y. Gan, C. Yang, H. Zhu, S. Mo, J. Zheng, J. Li, K. Jiang, Z. Feng, X. Wei, Q. Zhang, Z. Yang, S. Xu*, High-sensitivity hemoglobin detection based on polarization-differential spectrophotometry, Biosensors and Bioelectronics, 2023, 241: 115667

[6]  C. Wang, Y. Sun, Q. Zhao*, C. Yang, C. Zeng, Z. Feng, Y. Zhang, L. Li, K. Zhou, X. Wei, Z. Yang, and S. Xu, Ultrafine electro-optical frequency comb based on cascade phase modulation with cyclic frequency Shifting, Optics Letters, 2023, 48(17): 4665-4668

[7]  Q. Zhao, W. Lin, Y. Sun, C. Zeng, C. Yang, K. Zhou, Y. Zhang, L. Li, Z. Feng, X. Wei, Z. Yang, and S. Xu*, Wideband ultra-low intensity noise reduction via joint action of gain saturation and out-of-phase polarization mixing effect from a semiconductor optical amplifier, Optics Express, 2023, 31(12): 18734-18750.

[8]  Y. Sun, Q. Zhao*, C. Wang, C. Zeng, W. Lin, C. Yang, Z. Feng, Q. Zhang, Z. Yang, and S. Xu, Over-20-octaves-bandwidth ultralow-intensity-noise 1064-nm single-frequency fiber laser based on a comprehensive all-optical technique[J]. Optics Letters, 2022, 47(17): 4475-4478.

[9]  Q. Zhao, Y. Sun, C. Zeng, W. Lin, C. Yang, Z. Feng, K. Zhou, X. Wei, J. Gan, Q. Zhang, Z. Yang*, and S. Xu*, Ultralow-Noise Single-Frequency Fiber Laser and Application in High-Resolution Fiber-Optic Dynamic Strain Sensing[J]. Advanced Photonics Research, 2022, 3: 2200080.

[10]  Q. Zhao, Z. Zhang, B. Wu, T. Tan, C. Yang, J. Gan, H. Cheng, Z. Feng, M. Peng, Z. Yang, S. Xu*, Noise-sidebands-free and ultra-low-RIN 1.5 μm single-frequency fiber laser towards coherent optical detection[J]. Photonics Research, 2018, 6(4): 326-331.

[11]  Q. Zhao, Y. Zhang, W. Lin, Z. Wu, C. Li, C. Yang, Y. Zhang, Z. Feng, M. Peng, H. Deng, Z. Yang, and S. Xu*, Frequency noise of distributed Bragg reflector single-frequency fiber laser[J]. Optics Express, 2017, 25(11): 12601-12610.

[12]  Q. Zhao, S. Xu*, K. Zhou, C. Yang, C. Li, Z. Feng, M. Peng, H. Deng, and Z. Yang, Broad-bandwidth near-shot-noise-limited intensity noise suppression of a single-frequency fiber laser[J]. Optics Letters, 2016, 41(7): 1333-1335.

Contact Information

E-mail：zhaoql@scut.edu.cn