Laser & Optoelectronics Progress, Volume. 52, Issue 12, 121902(2015)
Numerical Study on Autocorrelation of Noise-Like Pulse in Fiber Lasers
The autocorrelation characteristics of the noise-like pulse generated from fiber laser are investigated using numerical analysis. Numerically calculated autocorrelation traces agree with experimental results. By changing the parameters, it is found that the pedestal and the spike reflect the average pulse width and intrapulse width, respectively. Increasing intra- pulse number in a noise- like pulse leads to a smaller spike- topedestal intensity ratio, while the width of the pedestal and the spike are not obviously influenced. Numerical analyses show that the contrast ratio of the interferometric autocorrelation trace less than 8∶1, which is detected in experiment, is determined by the noise-like pulse width ,pulse chirp and scan range.
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Jin Xinxin, Li Lei, Luo Jiaolin, Ge Yanqi, Zhang Qian, Zhao Luming. Numerical Study on Autocorrelation of Noise-Like Pulse in Fiber Lasers[J]. Laser & Optoelectronics Progress, 2015, 52(12): 121902
Category: Nonlinear Optics
Received: May. 29, 2015
Accepted: --
Published Online: Dec. 8, 2015
The Author Email: Xinxin Jin (vgcygegc@qq.com)