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Denis Molin, Marianne Bigot Astruc, Pierre Sillard, Koen de Jongh: Multimode optical fiber with low bending losses and reduced cladding effect. Draka Comteq, Summa Additon & Ashe P A, March 26, 2013: US08406593 (130 worldwide citation)

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 interr ...


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Louis Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot Astruc, Pierre Sillard: Bend-insensitive single-mode optical fiber. Draka Comteq, Summa Additon & Ashe P A, March 6, 2012: US08131125 (128 worldwide citation)

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.


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Louis Anne De Montmorillon, Pieter Matthijsse, Pascale Nouchi, Denis Molin, Marianne Bigot Astruc, Pierre Sillard, Frans Gooijer, Ivo Flammer, Yves Lumineau: Single mode optical fiber. Draka Comteq, Summa Additon & Ashe P A, November 24, 2009: US07623747 (124 worldwide citation)

An optical transmission fiber includes a central core having an index difference Δn1 with an outer optical cladding; a first inner cladding having an index difference Δn2 with the outer cladding; and a second buried inner cladding having an index difference Δn3 with the outer cladding of less than − ...


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Marianne Bigot Astruc, Denis Molin, Pierre Sillard: Broad-bandwidth multimode optical fiber having reduced bending losses. Draka Comteq, Additon Higgins Pendleton & Ashe P A, October 22, 2013: US08565568 (122 worldwide citation)

A multimode optical fiber includes a central core, an inner cladding, a buried trench, and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a glass-based central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r1, ...


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Louis Anne de Montmorillon, Denis Molin, Marianne Bigot Astruc, Pierre Sillard: Chromatic dispersion compensating fiber. Draka Comteq, Summa Allan & Addition P A, April 8, 2008: US07356234 (101 worldwide citation)

Disclosed is a chromatic dispersion compensating optical fiber comprising a central core, an intermediate cladding having a width (r2−r1) of 2.0 microns or greater, and a depressed inner cladding having a refractive index difference Dn3 with the external optical cladding of −3.0×10−3 or lower. At a ...


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Marianne Bigot Astruc, Louis Anne De Montmorillon, Denis Molin, Pierre Sillard: Chromatic dispersion compensating fiber. Draka Comteq, Summa Allan & Additon P A, January 27, 2009: US07483613 (87 worldwide citation)

Disclosed are an improved system and a related method for compensating the chromatic dispersion of a given length of a transmission fiber over a given spectral band by employing at least two chromatic dispersion compensating fibers that, with respect to the slope of the slope of the chromatic disper ...


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Louis Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot Astruc, Pierre Sillard: Bend-insensitive single-mode optical fiber. Draka Comteq, Summa Additon & Ashe P A, February 15, 2011: US07889960 (41 worldwide citation)

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 r1 and a positive refractive index difference Δn1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive i ...


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Pierre Sillard, Denis Molin, Louis Anne De Montmorillon, Marianne Bigot Astruc, Simon Richard: Transmission optical fiber having large effective area. Draka Comteq, Summa Additon & Ashe P A, October 18, 2011: US08041172 (30 worldwide citation)

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 (Seff) of at least about 120 μm2 at a wavelength of 1550 nm and an e ...


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Denis Molin, Yves Lumineau, Pierre Sillard, Ralph Petrus Johannes Adrianus Van Lankveld, Koen de Jongh: Multimode fiber. Draka Comteq, Summa Additon & Ashe P A, August 30, 2011: US08009950 (29 worldwide citation)

A multimode optical fiber comprises a central core having an alpha profile, a depressed cladding having a portion in continuity with the alpha profile of the central core and a stepped portion, and an outer cladding. The alpha profile is obtained by co-doping at least two dopants. The variation in c ...



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