Multiple intermodal-vectorial four-wave-mixing bands generated by selective excitation of orthogonally polarized LP01 and LP11 modes in a birefringent fiber
arXiv:2203.04654 · doi:10.1364/OL.456521
Abstract
This study investigated the nonlinear frequency conversions between the six polarization modes of a two-mode birefringent fiber. The aim was to demonstrate that the selective excitation of different combinations of linearly polarized spatial modes at the pump wavelength initiates distinct intermodal vector four-wave mixing processes. In particular, this study shows that exciting two orthogonally polarized LP01 and LP11 modes can result in simultaneous generation of up to three pairs of different spatial modes of orthogonal polarizations at different wavelengths. The role of the phase birefringence of the spatial modes in the phase-matching of such a four-wave mixing process was explained. Moreover, the theoretical predictions were verified through numerical simulations based on coupled nonlinear Schrodinger equations and also confirmed experimentally in a commercially available birefringent fiber.
arXiv comment11 pages, 2 figures
References in corpus (7)
- Spatial beam self-cleaning in multimode fiber
- Observation of geometric parametric instability induced by the periodic spatial self-imaging of multimode waves
- Self-organized instability in graded-index multimode fibres
- Multimode Nonlinear Fiber Optics: Massively Parallel Numerical Solver, Tutorial and Outlook
- Discovery of Soliton Self-Mode Conversion in Multimode Optical Fibers
- Quantized conical waves in multimode optical fibers
- Photon pair generation by intermodal spontaneous four wave mixing in birefringent, weakly guiding optical fibers