Multiphoton Absorption Excited Upconversion Luminescence in Multimode Optical Fiber
- Resource Type
- Conference
- Authors
- Ferraro, M.; Mangini, F.; Zitelli, M.; Niang, A.; Tonello, A.; Couderc, V.; Wabnitz, S.
- Source
- 2020 European Conference on Optical Communications (ECOC) Optical Communications (ECOC), 2020 European Conference on. :1-3 Dec, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Optical fiber losses
Supercontinuum generation
Silicon compounds
Luminescence
Tools
Optical fiber communication
Photonics
- Language
Shedding light on nonlinear loss occurring close to multimode optical fiber damage threshold, we demonstrate that multiple photons are absorbed by material defects and upconverted to shorter wavelength luminescence. An array of blue emitting points results from the spatial self-imaging in graded-index fibers.