Generation of bright-dark soliton pairs based on a ferromagnetic insulator Cr2Si2Te6 as a modulator in an Er-doped fiber laser

Zhiqi Sui; Mingxiao Zhu; Si Chen; Fuhao Yang; Yanjuan Wang; Shuo Sun; Zhifeng Hong; Weiyu Fan; Wenfei Zhang; Huanian Zhang; Xiaohan Chen; Guomei Wang; Shenggui Fu

doi:10.1364/AO.453675

Generation of bright-dark soliton pairs based on a ferromagnetic insulator Cr₂Si₂Te₆ as a modulator in an Er-doped fiber laser

Appl Opt. 2022 Apr 10;61(11):3254-3259. doi: 10.1364/AO.453675.

Authors

Zhiqi Sui, Mingxiao Zhu, Si Chen, Fuhao Yang, Yanjuan Wang, Shuo Sun, Zhifeng Hong, Weiyu Fan, Wenfei Zhang, Huanian Zhang, Xiaohan Chen, Guomei Wang, Shenggui Fu

PMID: 35471305
DOI: 10.1364/AO.453675

Abstract

In this work, a saturable absorber (SA) based on Cr₂Si₂Te₆ (CST), with a modulation depth of 14.90% and saturation intensity of 4.81MW/cm², was prepared by a liquid phase stripping method. Its nonlinear optical properties and application in obtaining mode-locked pulse output of bright-dark solitons are studied. When the pump power was 1250 mW, the maximum output power was 26.60 mW; the energy of the single pulse was 15.02 nJ, and the repetition rate was 1.77 MHz. Our results provided evidence that CST can be used as an excellent SA for a mode-locked laser and demonstrated that ferromagnetic insulators can be used for the study of bright-dark soliton pairs.