Generation of Wideband Signals Based on Continuous-Time Photonic Compression

被引：0
|
作者：
Zhou, Zhen [1 ]
Zhang, Yukang [1 ]
Chi, Hao [1 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Commun Engn, Hangzhou 310018, Peoples R China
来源：
PHOTONICS | 2024年 / 11卷 / 11期
基金：
中国国家自然科学基金;
关键词：
wideband signals; continuous-time photonic compression; photonic time stretch; wavelength-to-time mapping; STRETCH; RADAR;
D O I：
10.3390/photonics11111019
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A detailed study on continuous-time photonic compression (CTPC) for generating wideband signals is presented in this paper. CTPC enables the conversion of parallel analog waveforms from multiple channels into a time-compressed continuous-time waveform with increased bandwidth. We demonstrate a CTPC system with a compression factor of two in a proof-of-concept experiment. Subsequently, the origin of the distortion in the generated signals is investigated, and we proposed a method based on bandpass filtering to remove the periodic dips observed in the generated waveforms. In addition, a predistortion method is proposed to eliminate the distortion caused by the non-ideal spectral property of the multichannel system. Further simulation results are presented to show the potential of the proposed approach.
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页数：11
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