Weili Wang, Fengping Yan, Luna Zhang. Wavelength-Switchable Single-Longitudinal-Mode Thulium-Doped Fibre Laser with Multi-Channel FP-FBG[J]. Chinese Journal of Lasers, 2021, 48(21): 2101001
- Chinese Journal of Lasers
- Vol. 48, Issue 21, 2101001 (2021)
Fig. 1. Transmission spectrum of FP-FBG
Fig. 2. Transmission spectra of FBG F-P when h changes. (a) 16 mm; (b) 10 mm; (c) 6 mm; (d) 2 mm
Fig. 3. Transmission spectra of FBG F-P when Lg changes. (a) 24 mm; (b) 18 mm; (c) 8 mm; (d) 4 mm
Fig. 4. Transmission spectra of FBG F-P when δ
Fig. 5. FBG reflection spectrum and transmission spectra of FP-FBGs
Fig. 6. Structural diagram of wavelength-switchable SLM TDFL
Fig. 7. Schematic of single longitudinal mode selection of fiber laser
Fig. 8. Laser output spectra of three center wavelengths. (a) 1941.48 nm; (b) 1941.57 nm; (c) 1941.65 nm
Fig. 9. Output spectra of 10 consecutive scans with 5 min interval. (a) 1941.48 nm; (b) 1941.57 nm; (c) 1941.65 nm
Fig. 10. Output power and center wavelength of TDFL change with time. (a) 1941.48 nm; (b) 1941.57 nm; (c) 1941.65 nm
Fig. 11. RF spectra of output laser. (a) Unregulated PC; (b) 1941.48 nm; (c) 1941.57 nm; (d) 1941.65 nm
Fig. 12. Output power of TDFL varying with pump power. (a) 1941.48 nm; (b) 1941.57 nm; (c) 1941.65 nm
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