中国物理B ›› 2023, Vol. 32 ›› Issue (9): 94205-094205.doi: 10.1088/1674-1056/acd62a

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An injection-locking diode laser at 671 nm with a wide tuning range up to 6 GHz

Hong-Fang Song(宋红芳)1,2, Yue Shen(沈玥)1, and Ke Li(李可)1,2,†   

  1. 1 School of Science, Huzhou University, Huzhou 313000, China;
    2 Strong-coupling Physics International Research Laboratory, Huzhou University, Huzhou 313000, China
  • 收稿日期:2023-01-07 修回日期:2023-04-08 接受日期:2023-05-17 发布日期:2023-09-07
  • 通讯作者: Ke Li E-mail:02539@zjhu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12035006, 12205095, and 12147219) and the Natural Science Foundation of Zhejiang Province (Grant No. LQ21A040001).

An injection-locking diode laser at 671 nm with a wide tuning range up to 6 GHz

Hong-Fang Song(宋红芳)1,2, Yue Shen(沈玥)1, and Ke Li(李可)1,2,†   

  1. 1 School of Science, Huzhou University, Huzhou 313000, China;
    2 Strong-coupling Physics International Research Laboratory, Huzhou University, Huzhou 313000, China
  • Received:2023-01-07 Revised:2023-04-08 Accepted:2023-05-17 Published:2023-09-07
  • Contact: Ke Li E-mail:02539@zjhu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12035006, 12205095, and 12147219) and the Natural Science Foundation of Zhejiang Province (Grant No. LQ21A040001).

摘要: We present a compact injection-locking diode laser module to generate 671 nm laser light with a high output power up to 150 mW. The module adopts a master-slave injection-locking scheme, and the injection-locking state is monitored using the transmission spectrum from a Fabry-Pérot interferometer. Beat frequency spectrum measurement shows that the injection-locked slave laser has no other frequency components within the 150-MHz detection bandwidth. It is found that without additional electronic feedback, the slave laser can follow the master laser over a wide range of 6 GHz. All the elements of the module are commercially available, which favors fast construction of a complete 671-nm laser system for the preparation of cold 6Li atoms with only one research-grade diode laser as the seeding source.

关键词: injection lock, diode laser, 6Li atoms

Abstract: We present a compact injection-locking diode laser module to generate 671 nm laser light with a high output power up to 150 mW. The module adopts a master-slave injection-locking scheme, and the injection-locking state is monitored using the transmission spectrum from a Fabry-Pérot interferometer. Beat frequency spectrum measurement shows that the injection-locked slave laser has no other frequency components within the 150-MHz detection bandwidth. It is found that without additional electronic feedback, the slave laser can follow the master laser over a wide range of 6 GHz. All the elements of the module are commercially available, which favors fast construction of a complete 671-nm laser system for the preparation of cold 6Li atoms with only one research-grade diode laser as the seeding source.

Key words: injection lock, diode laser, 6Li atoms

中图分类号:  (Diode-pumped lasers)

  • 42.55.Xi
42.60.Fc (Modulation, tuning, and mode locking)