Patent
Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect
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TLDR
In this paper, the authors proposed an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding, which is interrupted at a point having a positive refractive index difference.Abstract:
The present invention embraces an optical fiber that includes a central core having an alpha-index profile with respect to an outer cladding. The optical fiber also includes an inner cladding, a depressed trench, and an outer cladding. Typically, the alpha-index profile of the central core is interrupted at a point having a positive refractive index difference with respect to the outer cladding. The optical fiber achieves reduced bending losses and a high bandwidth with a reduced cladding effect for high-data-rate applications.read more
Citations
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References
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Journal ArticleDOI
Multimode theory of graded-core fibers
D. Gloge,E. A. J. Marcatili +1 more
TL;DR: In this paper, a general class of circular symmetric profiles which comprise the parabolic distribution and the abrupt core-cladding index step as special cases are considered. And a relation is derived between the maximum index error and the impulse response, the mode volume, and the near and far field power distributions.
Patent
Bend resistant multimode optical fiber
TL;DR: In this paper, a core region and a cladding region surrounding and directly adjacent to the core region are described, with a depressed-index annular portion comprising a depressed relative refractive index.
Patent
Single mode optical fiber
Louis-Anne de Montmorillon,Denis Molin,Pieter Matthijsse,Frans Gooijer,Emmanuel Petitfrere,Yves Lumineau,Franciscus Johannes Achten,Marianne Bigot-Astruc,Pierre Sillard,Pascale Nouchi +9 more
TL;DR: Disclosed is an optical transmission fiber having reduced bending and micro-bending losses that is commercially usable in FTTH or FTTC transmission systems as mentioned in this paper, but it is not suitable for FTTH systems.
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Bend-insensitive single-mode optical fiber
De Montmorillon Louis-Anne,Richard Simon,Denis Molin,Boivin David,Marianne Bigot-Astruc,Pierre Sillard +5 more
TL;DR: In this paper, a singlemode optical fiber with bending losses of 0.15 dB/turn or less for a radius of curvature of 5 millimeters is presented, at a wavelength of 1550 nanometers.
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