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《Acta Optica Sinica》 2016-04
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Brillouin Scattering Light Characteristics of Chaotic Laser in Optical Fibers

Liu Hui;Zhang Jianzhong;Zhang Mingjiang;Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology;Institute of Optoelectronic Engineering, College of Physics & Optoelectronics, Taiyuan University of Technology;  
The effect of the chaotic laser power and the single mode fiber length on the linewidth of Brillouin backscattering Stokes light is analyzed. It is found that along with the growing of input chaotic laser power, the Stokes linewidth decreases gradually and then nearly remains unchanged when the input chaotic laser power reaches a certain value. The effect of the input power and fiber length on the backscattering light power is analyzed. It is found that under the same input chaotic laser power, the backscattering light power grows rapidly with the increase of the fiber length and then tends to be saturated when the fiber length is beyond approximately 15.41 km. The influence factors of the chaotic stimulated Brillouin backscattering light threshold are also studied. The experimental results show that the chaotic stimulated Brillouin backscattering light has a high threshold, which is approximately19 d B higher than that of the conventional continuous-wave laser.
【Fund】: 国家自然科学基金(61377089 61227016 61527819 61205142);; 国家国际科技合作专项(2014DFA50870);; 山西省自然科学基金(2015011049)
【CateGory Index】: O437.2
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