Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers
Dual-Comb Spectroscopy In article number 2500062, Quanyong Lu and co-workers demonstrate compact self-detecting dual-comb spectroscopy based on dispersion-engineered, high-speed packaged QCLs under coherent injection locking. The high-speed design enables the QCL comb to serve as a high-bandwidth photodetector in the DCS system without the use of external detectors. Broad multiheterodyne signals and narrow dual-comb tooth are recorded from the self-detecting DCS system, which show the unique advantages in intermode coherence, spectral broadening, and system simplification.
Authors
- Shenqiang Zhai (ORCID: https://orcid.org/0000-0003-3186-4461)
- Shuman Liu (ORCID: https://orcid.org/0000-0002-9470-8565)
- M. Razeghi
- Binru Zhou (ORCID: https://orcid.org/0000-0002-2784-9851)
- Yongqiang Sun (ORCID: https://orcid.org/0000-0001-8753-9268)
- Dapeng Wu (ORCID: https://orcid.org/0000-0002-3993-8587)
- Jinchuan Zhang (ORCID: https://orcid.org/0000-0002-8813-2096)
- Quanyong Lu (ORCID: https://orcid.org/0000-0002-2783-7201)
- Yu Ma (ORCID: https://orcid.org/0000-0002-7351-7794)
- Junqi Liu (ORCID: https://orcid.org/0000-0003-1654-6174)
- Fengqi Liu (ORCID: https://orcid.org/0000-0002-3371-7476)
- Shichen Zhang (ORCID: https://orcid.org/0000-0003-3688-3717)
- Ruixin Huang
- Zhenhua Ma (ORCID: https://orcid.org/0000-0003-3112-3153)
- Ning Zhuo (ORCID: https://orcid.org/0000-0001-6678-4125)
Institutions
- Northwestern University (US)
- Quantum Devices (United States) (US)
- Institute of Semiconductors (CN)
- Beijing Academy of Quantum Information Sciences (CN)
Publication Details
- Journal
- Advanced Photonics Research
- Published
- 2025-07-01
- DOI
- https://doi.org/10.1002/adpr.70036
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00