An Integrated Electro‐Optically Tunable Multi‐Channel Interference Cavity Laser
Abstract A quasi‐continuous tunable laser system is demonstrated by butt coupling a reflective semiconductor optical amplifier (RSOA) chip with a thin‐film lithium niobate (TFLN) based multi‐channel interference (MCI) cavity chip. This hybrid integrated laser allows for fine‐tuning of the laser wavelength from 1538 to 1560 nm with side‐mode suppression ratios (SMSRs) exceeding 30 dB. The MCI cavity chip is fabricated using the photolithography‐assisted chemo‐mechanical etching (PLACE) technique. The developed laser has an output power of ≈10 µW, which can be further amplified to 70 mW using a commercial erbium‐doped fiber amplifier (EDFA) without significant broadening of the laser linewidth.
Authors
- J. Liu (ORCID: https://orcid.org/0000-0001-6726-3268)
- Jianping Yu (ORCID: https://orcid.org/0000-0003-2510-8002)
- Botao Fu (ORCID: https://orcid.org/0000-0003-4831-9283)
- Yiran Zhu
- Min Wang (ORCID: https://orcid.org/0000-0001-5321-3323)
- Zhihao Zhang (ORCID: https://orcid.org/0000-0002-3007-492X)
- Jinming Chen (ORCID: https://orcid.org/0000-0003-3425-196X)
- Ya Cheng (ORCID: https://orcid.org/0000-0001-8269-5907)
- Jia Qi
- Junxia Zhou
- Huiting Song
Institutions
- Shanxi University (CN)
- Hefei University (CN)
- Shanghai Institute of Optics and Fine Mechanics (CN)
- East China Normal University (CN)
Publication Details
- Journal
- Laser & Photonics Review
- Published
- 2025-05-07
- DOI
- https://doi.org/10.1002/lpor.202401664
- Citations
- 1
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Natural Science Foundation of China
- Science and Technology Commission of Shanghai Municipality
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities