Directly measuring mode purity of single component in known superposed optical vortices
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127600
Abstract: Mode purity is an important reference for the quality of the optical vortex. In this work, we propose a self-interference method to directly measure single component in superposed optical vortices based on phase-shifting technology. This… read more here.
Keywords: superposed optical; mode purity; single component;
Ultra-Compact Waveguide-Integrated TE-Mode Converters With High Mode Purity by Designing Ge/Si Patterns
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2019.2924544
Abstract: In this letter, we propose ultra-compact TE-polarized even-to-odd mode converter designs by introducing Ge/Si patterns into silicon waveguide-integrated functional region. The Ge areas with continuous boundaries are determined by topology optimization that combines finite element… read more here.
Keywords: high mode; mode purity; ultra compact; waveguide integrated ... See more keywords
Analyzing OAM mode purity in optical fibers with CNN-based deep learning
Sign Up to like & getrecommendations! Published in 2019 at "Chinese Optics Letters"
DOI: 10.3788/col201917.100603
Abstract: Inspired by recent rapid deep learning development, we present a convolutional-neural-network (CNN)-based algorithm to predict orbital angular momentum (OAM) mode purity in optical fibers using far-field patterns. It is found that this image-processing-based technique has… read more here.
Keywords: deep learning; purity; oam mode; mode purity ... See more keywords