Yafang Li, Chunyu Wang, Haifeng Qi, Luyan Li, Shuhua Shi, Jiasheng Ni, Yanjie Zhao. An Ultra-Narrow Linewidth Brillouin Fiber Laser Based on Distributed Feedback Fiber Laser[J]. Laser & Optoelectronics Progress, 2020, 57(7): 071401
- Laser & Optoelectronics Progress
- Vol. 57, Issue 7, 071401 (2020)
Fig. 1. Schematic diagram of the Brillouin ring cavity laser
Fig. 2. Composition diagram of DFB-FL
Fig. 3. Laser spectra of the Brillouin fiber laser in two cases. (a) Without polarization control; (b) with polarization control
Fig. 4. Output power graph of the Brillouin fiber laser versus 980 nm pump optical power. (a) 90∶10 coupler correspondence diagram; (b) 70∶30 coupler correspondence diagram
Fig. 5. Output power graph of the Brillouin fiber laser versus DFB-FL power. (a) 90∶10 coupler correspondence diagram; (b) 70∶30 coupler correspondence diagram
Fig. 6. Schematic diagram for linewidth test
Fig. 7. Linewidth of the Brillouin fiber laser and DFB-FL
Fig. 8. Linewidth of the tunable laser and Brillouin fiber laser
Fig. 9. Linewidth of the Brillouin fiber laser and NKT X15 laser
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