Numerical investigation on a new designed hollow-core photonic crystal fiber with large modal separation
- Hefei University of Technology, Department of Optical Engineering, School of Electronic Science and Applied Physics (China)
- Shanghai Institute of Optics and Fine Mechanics, R&D Center of High Power Laser Components (China)
- Toyota Technological Institute, Research Center for Advanced Photon Technology (Japan)
We investigate the characteristics of optical modes in a new designed hollow-core photonic crystal fiber (PCF) with large modal separation. The large effective refractive index difference between the adjacent second-order vector modes can be maintained higher than 0.001 within the wavelength range from 1 to 2 μm. The maximum value can arrive 0.01199 between HE{sub 21} and TM{sub 01} mode at 2 μm. The fundamental mode of the proposed PCF has flat dispersion in a wide spectral range, which can be applied on wideband supercontinuum generation. The influence on the characteristics by the PCF structure has also been investigated. The increase of the size of the central air hole and the duty cycle affects the flatness of the dispersion curve to some extent. Our simulated results could provide an optimized fiber structure for the experimental study on stable transmission of vector modes.
- OSTI ID:
- 22950087
- Journal Information:
- Optical and Quantum Electronics, Vol. 51, Issue 11; Other Information: Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 0306-8919
- Country of Publication:
- United States
- Language:
- English
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