High Performance GaSb-Based DBR Laser with On-Chip Integrated Power Amplifier via Gain-Match Design
We reported on a single-longitudinal-mode operated distributed Bragg reflector laser diode emitting at 1950 nm with an on-chip integrated power amplifier. Second-order Chromium–Bragg gratings are carefully designed and fabricated at the end of the ridge waveguide. Achieving a stable single-mode operation with a large injecting current range of 800 mA from 15 °C to 40 °C. The maximum side-mode suppression ratio (SMSR) is up to 42 dB. To increase the output power, an on-chip integrated master oscillator power amplifier (MOPA) is also introduced. MOPA-DBR lasers with different matching configurations between the gain peak and Bragg wavelength are fabricated, resulting in various amplification consequences. The best device is realized with 40 nm red-shifted between Bragg wavelength and photoluminescence (PL) peak. A power amplification of 5.6 times is achieved with the maximum output power of 45 mW. Thus, we put up the feasibility and key design parameters of on-chip integrated power amplification DBR lasers towards mid-infrared.
Authors
- Yingqiang Xu (ORCID: https://orcid.org/0000-0002-1200-7280)
- Haoran Wen (ORCID: https://orcid.org/0000-0003-4691-701X)
- Jianmei Shi (ORCID: https://orcid.org/0009-0000-6305-8996)
- Yihang Chen (ORCID: https://orcid.org/0000-0003-3836-8129)
- Chengao Yang (ORCID: https://orcid.org/0000-0003-4426-6807)
- Hongguang Yu (ORCID: https://orcid.org/0009-0000-5510-2619)
- Yu Zhang (ORCID: https://orcid.org/0000-0001-7029-396X)
- Zhiyuan Wang (ORCID: https://orcid.org/0000-0001-6975-6875)
- Donghai Wu (ORCID: https://orcid.org/0000-0003-0327-0332)
- Hao Tan (ORCID: https://orcid.org/0000-0001-9253-4701)
- Zhichuan Niu (ORCID: https://orcid.org/0000-0002-9566-6635)
- Haiqiao Ni
- Juntian Cao
- Zhengqi Geng (ORCID: https://orcid.org/0009-0007-8915-4207)
Institutions
- Chinese Academy of Sciences (CN)
- Hefei University (CN)
- Institute of Semiconductors (CN)
- Beijing Academy of Quantum Information Sciences (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Applied Sciences
- Published
- 2024-12-24
- DOI
- https://doi.org/10.3390/app15010041
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Beijing Nova Program