Design, fabrication, and characterization of a highly nonlinear few-mode fiber
| Autor: | Joel Carpenter, Jitao Gao, Elham Nazemosadat, Peter A. Andrekson, Jochen Schröder, Chen Yang, Ming Tang, Magnus Karlsson, Songnian Fu, Weijun Tong |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Fabrication
C band business.industry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Core (optical fiber) Nonlinear system Wavelength 0103 physical sciences Optoelectronics Fiber 0210 nano-technology business Phase conjugation Degeneracy (mathematics) |
| Zdroj: | Photonics Research. 7:1354 |
| ISSN: | 2327-9125 |
| DOI: | 10.1364/prj.7.001354 |
| Popis: | We present the design, fabrication, and characterization of a highly nonlinear few-mode fiber (HNL-FMF) with an intermodal nonlinear coefficient of 2.8 (W·km)−1, which to the best of our knowledge is the highest reported to date. The graded-index circular core fiber supports two mode groups (MGs) with six eigenmodes and is highly doped with germanium. This breaks the mode degeneracy within the higher-order MG, leading to different group velocities among corresponding eigenmodes. Thus, the HNL-FMF can support multiple intermodal four-wave mixing processes between the two MGs at the same time. In a proof-of-concept experiment, we demonstrate simultaneous intermodal wavelength conversions among three eigenmodes of the HNL-FMF over the C band. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|