Progress Toward Photon-pair Efficiency Optimization Using Four-wave Mixing In Few-mode Fibers
Abstract
Intermodal four-wave mixing (FWM) process in few-mode fibers (FMFs) could be utilized for entangled photon-pair generation. Previous studies mainly performed in single-mode fibers suffered from the significant Raman scattering background from the glass fiber. Therefore, the instantaneous Raman and FWM effects would compete; this could be avoided in FMFs if the modal dispersion is larger than the Raman gain spectra. Utilizing two pumps in different modes in FMFs will generate photon pairs in various modes. Here, we study the effect of pump spectral separation on the intermodal FWM power and bandwidth using a seeding technique. It is concluded that the further the pumps and intermodal FWM idler and signal are from each other spectrally, the smaller the photon efficiency and larger the bandwidth. Experimental results for two FMFs of different differential mode group delay values are presented.
Recommended Citation
S. Montazeri and M. Esmaeelpour, "Progress Toward Photon-pair Efficiency Optimization Using Four-wave Mixing In Few-mode Fibers," Applied Optics, vol. 64, no. 16, pp. 4654 - 4659, Optica Publishing Group, Jun 2025.
The definitive version is available at https://doi.org/10.1364/AO.558793
Department(s)
Electrical and Computer Engineering
International Standard Serial Number (ISSN)
2155-3165; 1559-128X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Optica Publishing Group, All rights reserved.
Publication Date
01 Jun 2025
Comments
National Science Foundation, Grant 2301870