强激光与粒子束2024，Vol.36Issue(4)：63-68,6.DOI:10.11884/HPLPB202436.230358
光频梳下变频信号光纤延时频率恢复方法
Frequency recovery method for optical-frequency-comb-based down-converted signal reception using optical delay line
王天恒 1谢树果1
作者信息
- 1. 北京航空航天大学电子信息工程学院,北京 100191
- 折叠
摘要
Abstract
To recover the missing frequency information in optical-frequency-comb-based down-converted signal receiving,this paper introduces a frequency recovering method based on frequency-phase-mapping.An optical time delay line is used to generate a certain time delay and it builds a frequency-phase-mapping between signal's frequency and down-converted component's phase,which can be acquired by data processing.Thus,the frequency can be calculated through the measurable phase and certain time delay.Then,this paper analyzes parameters such as time delay on frequency recovery,estimates the limit requirements of this method for the uncertainty of phase measurement,and finally gives the setting strategy of key parameters in the specific implementation of this method.The number of signals under test is theoretically unlimited as long as the down-converted components are not aliased.Compared to related works,this method has better performance in multi-signals recovery,because its expense in time consumption and data processing is nearly constant as the number of signals increases.关键词
微波光子/光频梳/下变频/频率恢复/光纤延迟线Key words
microwave photonics/optical frequency comb/down-converting/frequency recovering/optical time delay line分类
信息技术与安全科学引用本文复制引用
王天恒,谢树果..光频梳下变频信号光纤延时频率恢复方法[J].强激光与粒子束,2024,36(4):63-68,6.
