Single-ended characterization of the coherent transfer matrix of coupled multimode transmission channels

作     者：ALIREZA FARDOOST FATEMEH GHAEDI VANANI SETHUMADHAVAN CHANDRASEKHAR GUIFANG LI ALIREZA FARDOOST;FATEMEH GHAEDI VANANI;SETHUMADHAVAN CHANDRASEKHAR;GUIFANG LI

作者机构：CREOLThe College of Optics and PhotonicsUniversity of Central FloridaOrlandoFlorida 32816USA Retired Nokia Bell LabsMurray HillNew Jersey 07974USA 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2023年第11卷第10期

页      面：1627-1634页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：National Science Foundation(1932858,ECCS-1808976) Army Research Office(W911NF-17-1055,W911NF2010085) 

主　　题：polarization coherent characterization 

摘      要：Light propagation in random media is a subject of interest to the optics community at large,with applications ranging from imaging to communication and ***,real-time characterization of wavefront distortion in random media remains a major *** the difficulties,for many applications such as imaging(e.g.,endoscopy)and focusing through random media,we only have single-ended *** this work,we propose to represent wavefronts as superpositions of spatial *** this framework,random media can be represented as a coupled multimode transmission *** the distributed coherent transfer matrix of the channel is characterized,wavefront distortions along the path can be ***,backreflections almost always accompany mode coupling and wavefront ***,we further propose to utilize backreflections to perform single-ended characterization of the coherent transfer *** first develop the general framework for single-ended characterization of the coherent transfer matrix of coupled multimode transmission ***,we apply this framework to the case of a two-mode channel,a single-mode fiber,which supports two randomly coupled polarization modes,to provide a proof-of-concept ***,as one of the main applications of coherent channel estimation,a polarization imaging system through singlemode fibers is *** envision that the proposed method can be applied to both guided and free-space channels with a multitude of applications.