Abstract
Optical memory effect-based speckle-correlated technology has been developed for reconstructing hidden objects from disordered speckle patterns,achieving imaging through scattering layers.However,the lighting efficiency and field of view of existing speckle-correlated imaging systems are limited.Here,a near-infrared low spatial coherence fiber random laser illumination method is proposed to address the above limitations.Through the utilization of random Rayleigh scattering within dispersion-shifted fibers to provide feedback,coupled with stimulated Raman scattering for amplification,a near-infrared fiber random laser exhibiting a high spectral density and extremely low spatial coherence is generated.Based on the designed fiber random laser,speckle-correlated imaging through scattering layers is achieved,with high lighting efficiency and a large imaging field of view.This work improves the performance of speckle-correlated imaging and enriches the research on imaging through scattering medium.
基金项目
National Natural Science Foundation of China(62375040)
National Natural Science Foundation of China(11974071)
Sichuan Science and Technology Program(2022ZYD0108)
Sichuan Science and Technology Program(2023JDRC0030)
维普
万方数据