Low-cost compressive sensing imaging based on spectrum-encoded time-stretch structure | Zendy

Guoqing Wang | Zendy; Liyang Shao | Zendy; Yibing Liu | Zendy; Weijie Xu | Zendy; Dongrui Xiao | Zendy; Shuaiqi Liu | Zendy; Jie Hu | Zendy; Fang Zhao | Zendy; Perry Ping Shum | Zendy; Weizhi Wang | Zendy; Yuan Zhou | Zendy; Rui Min | Zendy; Chao Wang | Zendy

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Low-cost compressive sensing imaging based on spectrum-encoded time-stretch structure

Author(s) -

Guoqing Wang,

Liyang Shao,

Yibing Liu,

Weijie Xu,

Dongrui Xiao,

Shuaiqi Liu,

Jie Hu,

Fang Zhao,

Perry Ping Shum,

Weizhi Wang,

Yuan Zhou,

Rui Min,

Chao Wang

Publication year - 2021

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.421055

Subject(s) - computer science , optics , astronomical interferometer , compressed sensing , spectral imaging , interferometry , physics , algorithm

A low-cost compressive sensing imaging (CSI) system based on spectrum-encoded time-stretch (SETS) structure involving cascaded Mach-Zehnder Interferometers (MZIs) for spectral domain random mixing (also known as the optical random pattern generator) is proposed and experimentally demonstrated. A proof-of-principle simulation and experiment is performed. A mode-locked laser with a repetition rate of 50MHz and low-cost cascaded MZIs as the key devices enable fast CSI system. Data compression ratio from 6% to 25% are obtained using proposed CSI based SETS system. The proposed design solves the big data issue in the traditional time-stretch system. It has great potential in fast dynamic phenomena with low-cost and easy-access components.

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