| DOI | Resolve DOI: https://doi.org/10.1364/OL.464434 |
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| Author | Search for: Wang, HaiyangORCID identifier: https://orcid.org/0000-0002-9581-3527; Search for: Chen, ChenORCID identifier: https://orcid.org/0000-0003-2325-1198; Search for: Lu, Ping1ORCID identifier: https://orcid.org/0000-0002-8610-4032; Search for: Mihailov, Stephen1ORCID identifier: https://orcid.org/0000-0002-6144-0937; Search for: Chen, Liang; Search for: Bao, Xiaoyi |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Funder | Search for: Natural Sciences and Engineering Research Council of Canada; Search for: Canada Research Chairs; Search for: China Scholarship Council |
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| Format | Text, Article |
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| Subject | fiber lasers; laser modes; optical measurement; polarization maintaining fibers; random lasers; ring resonators |
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| Abstract | Frequency fluctuation is a major problem in high-precision metrology as real-time optical frequency measurement is not available with commercial photodetectors; alternatively, frequency-stabilized lasers as a reference are also not accessible in most laboratories. In this study, we propose and demonstrate a polarization-maintaining random fiber grating ring (PM-RFGR) resonator in a PM Brillouin random fiber laser (BRFL) to achieve sub-MHz frequency drift, which is measured by the optical beat of the random laser and the pump laser. Experimental results show that longitudinal modes are suppressed in the BRFL owing to the feedback of the RFGR resonating with one longitudinal mode of the random laser. The BRFL shows mode-hopping-free operation over 14.9 s due to the self-adjustment of random modes with small frequency difference to thermal and acoustic variations and self-injection locking through RFGR. As a result, a small frequency drift of ∼340 kHz with single-longitudinal mode is achieved in the BRFL enabled by the RFGR, which offers an all optical locking mechanism for optical frequency stabilization. |
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| Publication date | 2022-07-27 |
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| Publisher | Optica Publishing Group |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 00a2599d-4d51-4d49-8b4c-00b0acdde66b |
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| Record created | 2022-10-07 |
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| Record modified | 2022-10-07 |
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