Multiple ultra-wideband signal sources exploiting XPM in SFRL

作     者：ZHAO Zanshan XING Weiguang GAN Weiming ZHAO Zanshan;XING Weiguang;GAN Weiming

作者机构：Haikou LabInstitute of AcousticsChinese Academy of SciencesHaikou 570100China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2022年第18卷第2期

页      面：77-84页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the Hainan Provincial Natural Science Foundation of China(No.620MS078) 

主　　题：signal wideband amplifier 

摘      要：A novel scheme for all-optical broadcast ultra-wideband(UWB) monocycle pulses generation based on cross-phase modulation(XPM) in semiconductor fiber ring laser(SFRL) is proposed, in which three UWB positive or negative monocycle pulses can be generated simultaneously. A comprehensive broad-band dynamic model for this kind of all-optical broadcast UWB monocycle sources is established, which is further applied to numerically analyze the impacts of injection current of semiconductor optical amplifier(SOA), the power and wavelength of the signal light on the performance of the UWB positive monocycle pulses with higher power spectral density. The results show that the spectra of the UWB positive and negative monocycle pulses generated by this scheme match the Federal Communications Commission(FCC) definition quite well. Three UWB positive monocycle pulses with better performance can be obtained when the power of signal light is at a high level, and three other UWB positive monocycle pulses with good tolerance to both the injection current of the SOA and the wavelength of the signal light can be obtained. In addition, the powers of the lasing light coupled into the SFRL should not be strong to obtain three UWB positive monocycle pulses with better performance.