Coded information storage pulsed laser based on vector period-doubled pulsating solitons

Abstract

Pulsating soliton is a unique local structure in nonlinear dissipative system. Different from the pulse train with equal amplitude generated by conventional average soliton, the amplitude of pulsating soliton shows a remarkable periodic fluctuation behavior. With the help of the interaction between vector solitons, vector solitons with rich multi-period pulsation phenomena are successfully obtained in the experiment and numerical simulation. Then, based on the phenomenon of multi-period pulsation of vector solitons under polarization modulation, a simple and stable information storage fiber laser is designed. By changing the rotation angle of the polarization controller to adjust the polarization state in the cavity, the regulation of vector period-doubled pulsating soliton is flexibly realized. In addition, an automatic identification program is designed to process the pulse data with binary coding, so as to realize the information storage function based on vector period-doubled pulsating soliton. This result promotes the application prospect of vector solitons in optical communication, information storage and other fields.