光纤布拉格光栅
色散(光学)
光学
激光器
混乱的
带宽(计算)
材料科学
半导体激光器理论
物理
光纤
计算机科学
电信
人工智能
作者
Daming Wang,Yi-Hang Lei,Pengfei Shi,Z.-M. Li
标识
DOI:10.1088/1674-1056/acddce
摘要
Optical chaos has attracted widespread attention owing to its complex dynamic behaviors. However, the time delay signature (TDS) caused by the external cavity mode reduces the complexity of optical chaos. We propose and numerically demonstrate the critical dispersion of chirped fiber Bragg grating (CFBG) for eliminating the TDS of laser chaos in this work. The critical dispersion, as a function of relaxation frequency and bandwidth of the optical spectrum, is found through extensive dynamics simulations. It is shown that the TDS can be eliminated when the dispersion of CFBG is above this critical dispersion. In addition, the influence of dispersive feedback light and output light from a laser is investigated. These results provide important quantitative guidance for designing chaotic semiconductor lasers without TDS.
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