Open AccessAnalysis of signal detection configurations in optical time-stretch imaging
Author(s) -
Yueyun Weng,
Liye Mei,
Gai Wu,
Siyan Chen,
Bihong Zhan,
Keisuke Goda,
Sheng Liu,
Cheng Lei
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.403454
Subject(s) - optics , computer science , image quality , signal (programming language) , sensitivity (control systems) , image resolution , detection theory , signal processing , image processing , dynamic imaging , computer vision , digital image processing , computer hardware , electronic engineering , physics , digital signal processing , image (mathematics) , detector , engineering , programming language
Optical time-stretch (OTS) imaging is effective for observing ultra-fast dynamic events in real time by virtue of its capability of acquiring images with high spatial resolution at high speed. In different implementations of OTS imaging, different configurations of its signal detection, i.e. fiber-coupled and free-space detection schemes, are employed. In this research, we quantitatively analyze and compare the two detection configurations of OTS imaging in terms of sensitivity and image quality with the USAF-1951 resolution chart and diamond films, respectively, providing a valuable guidance for the system design of OTS imaging in diverse fields.