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Marianne Bigot-Astruc, Marcoussis FR

Marianne Bigot-Astruc, Marcoussis FR

Patent application numberDescriptionPublished
20090252469Dispersion-Shifted Optical Fiber - A dispersion-shifted optical fiber (NZDSF) includes a central core (r10-08-2009
20090279835Single-Mode Optical Fiber Having Reduced Bending Losses - A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r11-12-2009
20090279836Bend-Insensitive Single-Mode Optical Fiber - A single-mode optical fiber includes a central core, an intermediate cladding, a depressed trench, and an external optical cladding. The central core has a radius r11-12-2009
20100189397Single-Mode Optical Fiber - An optical fiber includes a central core, which has a radius r07-29-2010
20100189399Single-Mode Optical Fiber Having an Enlarged Effective Area - A single-mode optical fiber includes a central core, a first inner cladding, a second inner cladding, and an outer cladding. The optical fiber, at a wavelength of 1550 nanometers, has an effective area greater than or equal to 100 μm07-29-2010
20100189400Single-Mode Optical Fiber - A single-mode optical fiber possesses, at a wavelength of 1550 nanometers, an effective area greater than about 90 μm07-29-2010
20100290781Microbend-Resistant Optical Fiber - Disclosed is an improved, single-mode optical fiber possessing a novel coating system. When combined with a bend-insensitive glass fiber, the novel coating system according to the present invention yields an optical fiber having exceptionally low losses.11-18-2010
20110044595Transmission Optical Fiber Having Large Effective Area - The present invention relates to a transmission optical fiber. The optical fiber includes, from its center to its periphery a central core, an intermediate cladding, and a depressed cladding. The optical fiber has an effective area (S02-24-2011
20110085770SINGLE MODE OPTICAL FIBER WITH DEPRESSED TRENCH - An optical fiber having a core and an outer cladding, the core including from its center outward a central core having a radius and a refractive index difference with respect to the outer cladding, and a depressed inner cladding. The depressed inner cladding includes at least a first portion having a radius and a refractive index difference with respect to the outer cladding, the first portion preferably being adjacent to the central core, and a second portion adjacent to the first portion constituting a depressed trench having a radius, and a refractive index difference with respect to the outer cladding. The first portion of the inner cladding has a refractive index below the refractive index of the outer cladding, and the depressed trench has a refractive index that is lower than the refractive index of the first portion of the depressed inner cladding. The outer radius of the depressed inner cladding of the optical fiber is between 28 μm and 40 μm, the LP04-14-2011
20110135262Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect - 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.06-09-2011
20110135263High-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses - The present invention embraces a multimode optical fiber that includes a central core having an alpha-index profile, an inner cladding, a depressed trench, and an outer cladding (e.g., an outer optical cladding). Typically, the central core's alpha-index profile has a minimum refractive index at the central core's radius that corresponds to a 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.06-09-2011
20110135264Bend-Insensitive Single-Mode Optical Fiber - The present invention embraces a single-mode optical fiber that, at a wavelength of 1550 nanometers, has bending losses of 0.15 dB/turn or less for a radius of curvature of 5 millimeters.06-09-2011

Patent applications by Marianne Bigot-Astruc, Marcoussis FR