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Strain and Curvature Stability Enhanced SMF Introduction
- Source :
- Advanced Electromagnetics, Vol 6, Iss 1, Pp 63-69 (2017)
- Publication Year :
- 2017
- Publisher :
- Advanced Electromagnetics, 2017.
-
Abstract
- In this paper, the strain insensitive single mode optical fiber with low nonlinear effects and ultra low bending loss (BL), appropriate for small curvature radius installation, is presented. The suggested design method is based on the reverse engineering which evaluates the refractive index profile considering proper mode field diameter (MFD) value. Then, so as to attain the desired bending loss and strain response for the optical fiber, the optimization tool of the evolutionary genetic algorithm (GA) is employed to determine the optical and geometrical parameters of the structure. In the first designed fiber, the calculations for BL, MFD, effective area (Aeff), and effective refractive index (neff) sensitivity to strain in the well-known wavelength of 1.55 µm are 0.0018 dB per each turn of 5 mm curvature radius, 8.53 µm, 58 µm2, and 4.5 × 10-8 µɛ-1, respectively. Furthermore, the effect of placing raised outer cladding in the fiber structure is investigated which exhibits the MFD of 8.63 µm, 0.0093 dB BL for single turn of 5 mm radius, and 87 µm2 Aeff at 1.55 µm. In this case the strain sensitivity of 6.7 × 10-8 µɛ-1 is calculated for the neff. The mentioned effective area is magnificently large in the domain of bend insensitive fibers. In the meantime, the designed structures are insensitive to strain which is a crucial feature in applications with small curvature radius.
- Subjects :
- lcsh:QC501-766
optical fiber
Radiation
Optical fiber
Materials science
business.industry
Antenna aperture
Single-mode optical fiber
Refractive index profile
Curvature
Cladding (fiber optics)
lcsh:QC1-999
Electronic, Optical and Magnetic Materials
law.invention
Wavelength
Mode field diameter
Optics
law
genetic algorithm
lcsh:Electricity and magnetism
bending loss
Electrical and Electronic Engineering
business
axial strain
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 21190275
- Volume :
- 6
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Advanced Electromagnetics
- Accession number :
- edsair.doi.dedup.....38c1332301ad10d73a1c4486040d42d2