Photonic time-frequency filter based on the software-defined time-frequency prism

被引：0
|
作者：
Han, Guanyu [1 ]
Li, Shangyuan [1 ]
Xue, Xiaoxiao [1 ]
Zheng, Xiaoping [1 ]
机构：
[1] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
OPTICS LETTERS | 2022年 / 47卷 / 14期
基金：
中国国家自然科学基金;
关键词：
FAULT-DIAGNOSIS;
D O I：
10.1364/OL.457157
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a microwave photonic 2D time-frequency filter based on a photonic time-frequency prism. A time-varying frequency response is realized by deviating the passband of a 1D ordinary frequency filter in the 2D time-frequency plane. The proposed time-frequency filter features highly reconfigurable frequency-sweeping speed and bandwidth, thanks to the software-defined photonic time-frequency prism. With the proposed technique, separation of multiple linear and nonlinear chirp signals with overlapped spectra is experimentally demonstrated. (C) 2022 Optica Publishing Group
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页码：3576 / 3579
页数：4
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