Photonic generation of ultrawideband pulse using semiconductor laser with optical feedback.
We propose and demonstrate an approach to the generation of an ultrawideband (UWB) pulse utilizing the nonlinear dynamics of a semiconductor laser (SL). The output UWB chaotic optical pulses generated by the SL with optical feedback can be controlled when the feedback strength and driving current of the SL are tuned. Our experiment proves that the spectrum characteristics of the UWB pulses satisfy Federal Communications Commission regulations, and the experimental results are consistent with the simulated results based on the laser's rate equations.
Physics Department, College of Science, Taiyuan University of Technology,Number 79 West Yingze Street, Taiyuan 030024, China.
Jian-Yu
JY
Zheng
Ming-Jiang
MJ
Zhang
An-Bang
AB
Wang
Yun-Cai
YC
Wang