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Dispersion and dispersion slope compensating fiber and optical transmission system utilizing same

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TLDR
In this article, a dispersion and dispersion slope compensating optical fiber is provided with a refractive index profile with a central core segment having a positive relative refractive indices.
Abstract
A dispersion and dispersion slope compensating optical fiber (10) includes a segmented core (12, 14, 16, 18) and a cladding layer (20) wherein the refractive index profile is selected to provide a dispersion having a maximum deviation of less than 7 ps/nm-km over a wavelength band from 1550 nm to 1610 run. According to a further embodiment of the invention, a dispersion compensating optical fiber is provided having a refractive index profile with a central core segment having a positive relative refractive index; a depressed moat segment on a periphery of the central core segment having a relative refractive index that is more negative than -1.2 %; and an annular ring segment outward from the depressed moat segment having a relative refractive index that is greater than 1.2 %.

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Patent

Optical fiber connector body with mutually coaxial and inclined cores, optical connector for forming the same, and mode conditioner and optical transmitter using the same

TL;DR: In this article, an optical fiber connected body including a first optical fiber having a core and a clad, with its end connected optically to an end of the first optical fibre, is considered, and a light beam entering the second optical fiber from the first fiber is inclined to the central axis of the second fiber.
Patent

Enhanced multimode fiber

Ian A. White
TL;DR: A perturbed, multimode optical fiber exhibits order-of-magnitude improved capacity attributed to mode mixing without the added loss which, in the past, was associated with the perturbation stream as discussed by the authors.
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Method for the manufacture of optical fibers, improved optical fibers, and improved raman fiber amplifier communication systems

TL;DR: In this paper, the authors describe an improved optical fiber design in which the criteria for high performance in a Raman amplified optical system, such as moderate effective area, moderate dispersion, low dispersion slope, and selected zero dispersion wavelength, are simultaneously optimized.
Patent

Optical fiber, dispersion compensator, and optical transmission system

TL;DR: In this article, a compact dispersion compensator consisting of a housing and an optical fiber coil is presented. But the formulation of the housing is different from ours: it is filled with a resin surrounding the coiled part of the optical fiber, whereas the part is held by the resin.
Patent

Dispersion compensating fiber for S-band discrete Raman amplifier

TL;DR: In this article, a trapezoid core, an inner cladding surrounding the trapezoidal core, and an outer cladding around the inner claddings, is presented.
References
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Patent

Dispersion compensating single mode waveguide

TL;DR: In this article, a dispersion compensating single mode optical waveguide fiber is designed to change the wavelength window of operation of a link from 1310 nm to 1550 nm.
Patent

Dispersion compensating optical fiber

TL;DR: In this paper, a dispersion compensating optical fiber is proposed for application in a wavelength optical signal transmission system, which has a W shaped refractive index profile, and has a first core layer, a second core layer formed around the outside of the first core layers, and a cladding layer made of substantially pure silica formed around outside the second core layers.
Patent

Optical transmission system with dispersion compensating optical fiber

TL;DR: In this paper, a dispersion compensating optical fiber has a negative chromatic dispersion slope and a value of dispersion suitable for practical application, and a bending loss thereof with a bending diameter of 40 mm is smaller than 0.01 dB/m at 1.55 μm.
Patent

Dispersion compensating optical fiber for wavelength multiplex transmission and method using same

TL;DR: In this paper, a dispersion compensating optical fiber for wavelength division multiplex optical communication is proposed, where Germanium is doped in the core and fluorine is uniformly doped on the internal layer to reduce the specific refractive index difference.
Patent

Dispersion-compensating fiber and method of fabricating the same

TL;DR: In this paper, a dispersion-compensating fiber is proposed which can be drawn at a lower temperature and can further reduce optical transmission loss, where a core portion containing a high concentration of GeO2 and a cladding portion formed around the outer periphery of the core portion.