ZTE

ZTE Communications ›› 2024, Vol. 22 ›› Issue (4): 29-39.DOI: 10.12142/ZTECOM.202404005

• Special Topic • Previous Articles     Next Articles

Ultra-Low Linewidth Frequency Stabilized Integrated Lasers: A New Frontier in Integrated Photonics

GU Zhenqian, YANG Zhen, ZHA Lulu, HU Junhui, CHI Nan, SHEN Chao()   

  1. School of Information Science and Technology, Fudan University, Shanghai 200438, China
  • Received:2024-10-22 Online:2024-12-03 Published:2024-12-03
  • About author:GU Zhenqian received his BS degree in electronic information engineering from Wuhan University, China in 2023. He is currently pursuing a PhD degree at the School of Information Science and Engineering, Fudan University, China. His research interests include visible light communication, GaN-based lasers, narrow linewidth lasers and integrated lasers.
    YANG Zhen received her BS degree in material physics from Anhui University, China in 2020, and MS degree in physics from Shanghai Jiao Tong University, China in 2023. She is currently pursuing a PhD degree at Fudan University, China. Her research interests include visible light communication, photonic integrated technologies such as narrow linewidth lasers, integrated lasers, and photodetectors.
    ZHA Lulu received her BS degree in communication engineering from Nanjing University of Posts and Telecommunications, China in 2021. She is currently pursuing her MS degree at the School of Information Science and Engineering, Fudan University, China. Her research interests include wireless optical communication, Micro-LED arrays, and high-speed laser communication.
    HU Junhui received his bachelor’s degree in electrical engineering from Wuhan University, China in 2021. Now he is a PhD candidate at the School of Information Science and Technology, Fudan University, China. His current research focuses on the design and analysis of high modulation bandwidth GaN-based short-wavelength lasers, as well as their application in high-speed visible light communication (VLC) systems. He has published more than 20 peer-reviewed publications in the fields of semiconductor lasers, VLC, and underwater wireless optical communication (UWOC) in internationally renowned journals such as Nature Communications and Optics Express.
    CHI Nan received her BS and PhD degrees in electrical engineering from the Beijing University of Posts and Telecommunications, China in 1996 and 2001, respectively. From July 2001 to December 2004, she was an assistant professor with the Research Center COM, Technical University of Denmark. From January 2005 to April 2006, she was a research associate with the University of Bristol, UK. In June 2006, she joined Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, China, where she was a full professor. In June 2008, she was with the School of Information Science and Engineering, Fudan University. China. She is the author or co-author of more than 200 papers. She was the Chair of the APOC 2007 OsRT workshop and ACP 2010. She was the Technical Program Committee Member of many conferences such as APOC 08, ICAIT09, ACP 2011, WOCC 2012, ACP 2013, and IWOO 2014. Her research interests include coherent optical transmission, visible light communication, and optical packet/burst switching. She was the recipient of the New Century Excellent Talents Awards from the Education Ministry of China, Shanghai Shu Guang scholarship, Japanese OKAWA intelligence Fund Award, Pujiang talent of Shanghai City, and Ten Outstanding IT Young Persons Awards of Shanghai City.
    SHEN Chao (chaoshen@fudan.edu.cn) received his BSc degree in materials physics from Fudan University, China and PhD degree in electrical engineering from KAUST, Saudi Arabia. He is currently a professor at the School of Information Science and Technology, Fudan University. He has published over 100 peer-reviewed publications in the fields of III-nitride optoelectronics devices, semiconductor lasers, superluminescent diodes, photonics integrated circuit, visible light communications (VLC), and underwater wireless optical communications (UWOC). Prof. SHEN has served as a TPC member and invited speaker in many IEEE, Optica, and SPIE conferences, and is the associated editor of IEEE Photonics Journal. He is the recipient of the 2022 Okawa Foundation Research Grant.
  • Supported by:
    the Natural Science Foundation of China Project(61925104);the Key Research and Development Program of Jiangsu Province(BE2021008-5)

RichHTML

PDF

Abstract:

With the advancement of photonic integration technology, ultra-low linewidth frequency-stabilized lasers have demonstrated significant potential in precision measurement, quantum communication, atomic clocks, etc. This review summarizes the latest developments in integrated photonics for achieving ultra-low linewidth lasers, particularly breakthroughs made by integrating Brillouin lasers. We discuss the design principles, manufacturing processes, performance characteristics, and potential value of these lasers in various applications.

Key words: photonic integrated circuit (PIC), ultra-low linewidth, Brillouin lasers, high Q-factor