| Autor: |
Chen C, Wang H, Lu P, Mihailov S, Chen L, Bao X |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2023 May 01; Vol. 48 (9), pp. 2389-2392. |
| DOI: |
10.1364/OL.487172 |
| Abstrakt: |
We demonstrate a self-injection locking (SIL) in an Er-doped random fiber laser by a high quality factor (high-Q) random fiber grating ring (RFGR) resonator, which enables a single-mode narrow-linewidth lasing with ultra-low intensity and frequency noise. The RFGR resonator includes a fiber ring with a random fiber grating to provide random feedback modes and noise suppression filters with self-adjusted peak frequency adaptable to small perturbations allowing single longitudinal mode over 7000 s with frequency jitter below 3.0 kHz. Single-mode operation is accomplished by carefully controlling phase delays and mode coupling of resonant modes between main ring and RFGR with a side-mode suppression ratio of 70 dB and narrow linewidth of 1.23 kHz. The relative intensity noise is -140 dB/Hz above 100 kHz and the frequency noise is 1 Hz/Hz 1/2 above 10 kHz. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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