Orbital Angular Momentum Mode Propagation and Supercontinuum Generation in a Soft Glass Bragg Fiber
- Resource Type
- Periodical
- Authors
- Dyavangoudar, A.A.; Chhipa, M.K.; Saharia, A.; Ismail, Y.; Petruccione, F.; Bourdine, A.V.; Morozov, O.G.; Demidov, V.V.; Yin, J.; Singh, G.; Tiwari, M.
- Source
- IEEE Access Access, IEEE. 11:56891-56899 2023
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Optical fiber dispersion
Finite element methods
Optical fibers
Supercontinuum generation
Refractive index
Dispersion
Optical fiber networks
Bragg gratings
Bragg fiber
finite element method
OAM modes
zero-dispersion wavelength
supercontinuum generation
- Language
- ISSN
- 2169-3536
This manuscript presents a ring-core Bragg Fiber (RC-BF) for orbital angular momentum (OAM) modes propagation and supercontinuum generation. The proposed RC-BF is composed of alternating layers of soft glasses SF57 and LLF1 to render high nonlinearity to the fiber. Mode analysis using full-vectorial finite element method resulted in obtaining HE/EH modes to support vector modes as well as orbital angular momentum modes. The optimized fiber supports 22 OAM modes and exhibits a zero-dispersion wavelength (ZDW). The small effective area of Fiber 3 aided in achieving the highest nonlinearity, $\gamma $ = 91.51 $\text{W}^{-1}$ km $^{-1}$ . A near-infrared supercontinuum is generated with a 35 dB flatness over a bandwidth of $\sim $ 1087 - 2024 nm in a 20 cm long RC-BF using a chirp-free hyperbolic secant pulse of width 200 fs and peak power of 5 kW.