[Invited] Locking of terahertz semiconductor dual-comb laser sources

Hua Li (1) , Yiran Zhao (1) , Ziping Li (1) , Kang Zhou (1) , J. Cao (1) , Dong Xu (1) , S Barbieri (2, 3)

1 SIMIT - Shanghai Institute of Microsystem and Information Technology
2 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
3 PHOTONIQUE THZ - IEMN - Photonique THz - IEMN

We report on an active stabilization of a terahertz quantum cascade laser (QCL) dual-comb source by phase locking one of the dual-comb lines. Although only one dual-comb line is locked, the phase noise of other dual-comb lines close to the phase locked line is significantly reduced. Furthermore, it is demonstrated that the QCL comb without a control of the repetition rate can produce pulsed-type waveforms.

Mots clés: laser mode locking; laser noise; laser stability; microwave photonics; phase noise; quantum cascade lasers

Domaines: Sciences de l'ingénieur [physics]

Hua Li, Yiran Zhao, Ziping Li, Kang Zhou, J. Cao, et al.. [Invited] Locking of terahertz semiconductor dual-comb laser sources: [Invited]. 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567050⟩. ⟨hal-03448750⟩