Classical imaging with undetected photons using four-wave mixing in silicon core fibers

作     者：M.HUANG D.WU H.REN L.SHEN T.W.HAWKINS J.BALLATO U.J.GIBSON M.BERESNA R.SLAVíK J.E.SIPE M.LISCIDINI A.C.PEACOCK 

作者机构：Optoelectronics Research CentreUniversity of SouthamptonSouthamptonSO171BJUK School of Optoelectronic Engineering and Instrumentation ScienceDalian University of TechnologyDalian 116024China Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China Centre for Optical Materials Science and Engineering Technologies and Department of Materials Science and EngineeringClemson UniversityClemsonSouth Carolina 29634USA Department of PhysicsUniversity of TorontoTorontoOntario M5S 1A7Canada Department of PhysicsUniversity of PaviaI-27100 PaviaItaly 

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

年 卷 期：2023年第11卷第2期

页      面：137-142页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Engineering and Physical Sciences Research Council(EP/P000940/1) Norges Forskningsrad J.E.Sirrine Textile Foundation Natural Sciences and Engineering Research Council of Canada National Natural Science Foundation of China(62175080) 

主　　题：mixing fibers nonlinear 

摘      要：Undetected-photon imaging allows for objects to be imaged in wavelength regions where traditional components are unavailable. Although first demonstrated using quantum sources, recent work has shown that the technique also holds with classical beams. To date, however, all the research in this area has exploited parametric downconversion processes using bulk nonlinear crystals within free-space systems. Here, we demonstrate undetectedphoton-based imaging using light generated via stimulated four-wave mixing within highly nonlinear silicon fiber waveguides. The silicon fibers have been tapered to have a core diameter of915 nm to engineer the dispersion and reduce the insertion losses, allowing for tight mode confinement over extended lengths to achieve practical nonlinear conversion efficiencies(-30 dB) with modest pump powers(48 m W). Both amplitude and phase images are obtained using classically generated light, confirming the high degree of spatial and phase correlation of our system. The high powers(10 nW) and long coherence lengths(4 km) associated with our large fiber-based system result in high contrast and stable images.