Congyi Pan, Wangyun Liu, Zhaojin Fan. Optical Fiber Laser Linewidth Optimization Based on Light Self-Injection Method[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1914002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 19, 1914002 (2022)
Fig. 1. Basic structure of delayed self-heterodyne measurement system
Fig. 2. Basic structure of optical self-injection dual-cavity feedback
Fig. 3. Optimization and measurement system of fiber laser linewidth
Fig. 4. Spectrum before and after optimization. (a) Before optimization; (b) after optimization
Fig. 5. Lorentzian fitting curve of the optimized linewidth spectrum. (a) Before optimization; (b) after optimization
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Table 1. Linewidth of the laser at 10 dB
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Table 2. Measurement results of laser linewidth before optimization
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Table 3. Measurement results of laser linewidth after optimization
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