Nonlinear-Optical Processing of OAM Light States in a Few-Mode Fiber
Year: 2025
Type: article
Abstract: Utilizing the phase-matching conditions of inter-modal four-wave mixing in an elliptical-core few-mode fiber supporting three non-degenerate modes, we experimentally demonstrate schemes for generating orbital-angular-momentum (OAM)-entangled photon pairs with high mode purity and for achieving highly mode-selective frequency conversion of beams in OAM-compatible (LP11a, LP11b) mode basis. These techniques expand the toolbox for using OAM modes in both classical and quantum communications and information processing.
Source: Photonics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,896
Funder: National Science Foundation
Awards: RAISE-EQuIP: A Chip-integrated Platform for Photon-Efficient Quantum Communications, ExpandQISE Track 1: Quantum information exchange over spatially-multimode and multi-core optical fibers, EAGER: Spatial-Mode Entanglement and Spatial-Mode-Selective Quantum Frequency Conversion in Few-Mode Fibers
OpenAlex ID: W4408126498