Multi-Wavelength and Narrow Linewidth Fiber Laser Based on Composite Resonator

Zhecan Guo; Fang Xie; Xiaolei Guo; Xiaoyuan Zhang

doi:10.3788/LOP202259.1714008

Laser & Optoelectronics Progress, Volume. 59, Issue 17, 1714008(2022)

Multi-Wavelength and Narrow Linewidth Fiber Laser Based on Composite Resonator

Zhecan Guo, Fang Xie^*, Xiaolei Guo, and Xiaoyuan Zhang

Laboratory of Opto-Electronic Information Science and Engineering, Department of Physics, School of Science, Beijing Jiaotong University, Beijing 100044, China

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Figures & Tables(19)

Fig. 1. Principle of dual-wavelength narrow linewidth fiber laser

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Fig. 2. Principle of the frequency selection of composite resonator

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Fig. 3. Principle of three-wavelength narrow linewidth fiber laser

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Fig. 4. Spectrum of dual-wavelength narrow linewidth laser

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Fig. 5. Pump/laser power of one wavelength of dual-wavelength narrow linewidth fiber laser

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Fig. 6. Measurement principle of output power of dual-wavelength narrow linewidth fiber laser

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Fig. 7. Output power of two wavelengths

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Fig. 8. Principle of the heterodyne interferometric experiments. (a) Schematic diagram of the interference experiment system; (b) actual photo of the interference experiment system

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Fig. 9. Heterodyne interferometric signal when the light source is multi-longitudinal mode and single-longitudinal mode laser. (a) Multi-longitudinal mode heterodyne interference signal; (b) single longitudinal mode heterodyne interference signal

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Fig. 10. Heterodyne interferometric signal of any wavelength of dual-wavelength laser

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Fig. 11. Spectrum of three-wavelength narrow linewidth laser

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Fig. 12. Pump/laser power of one wavelength of three-wavelength narrow linewidth fiber laser

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Fig. 13. Principle of power measurement for three wavelengths

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Fig. 14. Output power of three wavelengths

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Fig. 15. Heterodyne interference signal of any wavelength of three-wavelength laser

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Table 1. Grating parameters of dual-wavelength narrow linewidth fiber laser
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Table 1. Grating parameters of dual-wavelength narrow linewidth fiber laser
Fiber grating $λ_{B} / n m$ 3 dB bandwidth of reflection spectrum $d / n m$ Reflectivity /%
FBG₁₁ 1529.85 0.1 65
FBG₁₂ 1529.85 0.1 65
FBG₂₁ 1542.65 0.1 65
FBG₂₂ 1542.65 0.1 65
FBG₂₃ 1542.65 0.6 99

Table 2. Length of L₁₁–L₂₂ in dual-wavelength narrow linewidth fiber laser
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Table 2. Length of L₁₁–L₂₂ in dual-wavelength narrow linewidth fiber laser
Fiber Fiber length L
L₁₁ 104
L₁₂ 100
L₂₁ 104
L₂₂ 100

Table 3. Parameters of three-wavelength narrow linewidth fiber laser

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Table 3. Parameters of three-wavelength narrow linewidth fiber laser

Fiber grating	$λ_{B} / n m$	3 dB bandwidth of reflection spectrum $d / n m$	Reflectivity /%
FBG₁₁	1529.85	0.1	65
FBG₁₂	1529.85	0.1	65
FBG₂₁	1542.65	0.1	65
FBG₂₂	1542.65	0.1	65
FBG₂₃	1542.65	0.6	99
FBG₃₁	1558.00	0.1	65
FBG₃₂	1558.00	0.1	65
FBG₃₃	1558.00	0.6	99

Table 4. Length of L₁₁–L₃₂ in three-wavelength narrow linewidth fiber laser
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Table 4. Length of L₁₁–L₃₂ in three-wavelength narrow linewidth fiber laser
Fiber Fiber length $L$
L₁₁ 104
L₁₂ 100
L₂₁ 104
L₂₂ 100
L₃₁ 104
L₃₂ 100

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Zhecan Guo, Fang Xie, Xiaolei Guo, Xiaoyuan Zhang. Multi-Wavelength and Narrow Linewidth Fiber Laser Based on Composite Resonator[J]. Laser & Optoelectronics Progress, 2022, 59(17): 1714008

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