中国物理B ›› 2025, Vol. 34 ›› Issue (12): 124203-124203.doi: 10.1088/1674-1056/adea5a
A tunable narrow-linewidth Raman laser based on high quality packaged microrod resonator
Cheng-Nian Liu(刘承念)1,2, Min Wang(王敏)3, Song-Yi Liu(刘嵩义)1,2, Bing Duan(段冰)1,2, Ying-Zhan Yan(严英占)4, Yu Wu(吴宇)5, Xiao-Chong Yu(俞骁翀)6,7,†, Bei-Bei Li(李贝贝)3,‡, and Da-Quan Yang(杨大全)1,2,§
- 1 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
4 Information Science Research Institute, China Electronics Technology Group Corporation, Beijing 100876, China;
5 The Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), University of Electronic Science and Technology of China, Chengdu 610054, China;
6 Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China;
7 School of Physics and Astronomy, Applied Optics Beijing Area Major Laboratory, Key Laboratory of Multiscale Spin Physics, Ministry of Education, Beijing Normal University, Beijing 100875, China
A tunable narrow-linewidth Raman laser based on high quality packaged microrod resonator
Cheng-Nian Liu(刘承念)1,2, Min Wang(王敏)3, Song-Yi Liu(刘嵩义)1,2, Bing Duan(段冰)1,2, Ying-Zhan Yan(严英占)4, Yu Wu(吴宇)5, Xiao-Chong Yu(俞骁翀)6,7,†, Bei-Bei Li(李贝贝)3,‡, and Da-Quan Yang(杨大全)1,2,§
- 1 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
4 Information Science Research Institute, China Electronics Technology Group Corporation, Beijing 100876, China;
5 The Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), University of Electronic Science and Technology of China, Chengdu 610054, China;
6 Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China;
7 School of Physics and Astronomy, Applied Optics Beijing Area Major Laboratory, Key Laboratory of Multiscale Spin Physics, Ministry of Education, Beijing Normal University, Beijing 100875, China
摘要： The enhancement of the microcavity quality factor contributes to fundamental linewidth reduction in microcavity lasers. This study demonstrates silica microrod resonators with quality factors approaching 109, fabricated by CO2 laser reflow technology. To improve practical applicability, low-loss package techniques were developed, yielding packaged resonators with optimized optical performance. Using this platform, stimulated Raman lasing was achieved with a pump mode Q-factor of 1.333×109, exhibiting a threshold of 0.765 mW. The laser output stability was characterized by a standard deviation of 0.671 mV over 45 minutes of operation, with corresponding Allan deviation analysis. At the maximum output power of 106.4 μW, the measured frequency noise spectral density reached 0.46 Hz2/Hz, corresponding to a linewidth of 2.89 Hz. Thermal tuning of the packaged module achieved a wavelength shift of 0.206 nm, with a temperature sensitivity of 8.92 pm/℃. This work establishes a new technical pathway for developing compact narrow-linewidth lasers, showing significant potential for medical diagnostics, optical communications, and defense applications.
中图分类号: (Lasers)
- 42.55.-f