Patents by Inventor Louis-Anne de Montmorillon
Louis-Anne de Montmorillon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8290324Abstract: 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 ?m2. The optical fiber also has a cable cut-off wavelength less than 1260 nanometers. Additionally, the optical fiber possesses a zero chromatic dispersion wavelength of between about 1300 nanometers and 1324 nanometers and, at the zero chromatic dispersion wavelength, a dispersion slope of less than 0.092 ps/(nm2·km).Type: GrantFiled: January 27, 2010Date of Patent: October 16, 2012Assignee: Draka Comteq, B.V.Inventors: Pierre Sillard, Denis Molin, Louis-Anne de Montmorillon, Marianne Bigot-Astruc, Simon Richard
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Publication number: 20120224254Abstract: An amplifying optical fiber includes an inner core, an inner cladding, a depressed trench, and an outer cladding (e.g., an outer optical cladding). Typically, the inner core includes a main matrix (e.g., silica-based) doped with at least one rare earth element. The depressed trench typically has a volume integral V13 of between about ?2200×10?3 ?m2 and ?1600×10?3 ?m2. Exemplary embodiments of the amplifying optical fiber are suitable for use in a compact configuration and high power applications.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: DRAKA COMTEQ, B.V.Inventors: Ekaterina Burov, Alain Pastouret, Louis-Anne de Montmorillon, Aurelien Bergonzo
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Publication number: 20120189258Abstract: 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. The coating system features (i) a softer primary coating with excellent low-temperature characteristics to protect against microbending in any environment and in the toughest physical situations and, optionally, (ii) a colored secondary coating possessing enhanced color strength and vividness. The secondary coating provides improved ribbon characteristics for structures that are robust, yet easily entered (i.e., separated and stripped). The optional dual coating is specifically balanced for superior heat stripping in fiber ribbons, with virtually no residue left behind on the glass. This facilitates fast splicing and terminations.Type: ApplicationFiled: March 26, 2012Publication date: July 26, 2012Applicant: DRAKA COMTEQ B.V.Inventors: Bob J. Overton, Louis-Anne de Montmorillon, Simon Richard, Denis Molin, Marianne Bigot-Astruc, Pierre Sillard, David Boivin
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Publication number: 20120183268Abstract: 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 ?n1 with the optical cladding. The intermediate cladding has a radius r2 and a refractive index difference ?n2 with the optical cladding, wherein ?n2 is less than ?n1. The depressed trench has a radius r3 and a negative index difference ?n3 with the optical cladding. At a wavelength of 1310 nanometers, the optical fiber has a mode field diameter (MFD) between 8.6 microns and 9.5 microns and, at a wavelength of 1550 nanometers, the optical fiber has bending losses less than about 0.25×10?3 dB/turn for a radius of curvature of 15 millimeters. At a wavelength of 1260 nanometers, attenuation of the LP11 mode to 19.3 dB is achieved over less than 90 meters of fiber.Type: ApplicationFiled: March 26, 2012Publication date: July 19, 2012Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
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Patent number: 8145025Abstract: 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 ?n1 with the optical cladding. The intermediate cladding has a radius r2 and a positive refractive index difference ?n2 with the optical cladding, wherein ?n2 is less than ?n1. The depressed trench has a radius r3 and a negative index difference ?n3 with the optical cladding. At a wavelength of 1310 nanometers, the optical fiber has a mode field diameter (MFD) between 8.6 microns and 9.5 microns and, at a wavelength of 1550 nanometers, the optical fiber has bending losses less than about 0.25×10?3 dB/turn for a radius of curvature of 15 millimeters. At a wavelength of 1260 nanometers, attenuation of the LP11 mode to 19.3 dB is achieved over less than 90 meters of fiber.Type: GrantFiled: May 6, 2009Date of Patent: March 27, 2012Assignee: Draka Comteq, B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
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Patent number: 8145027Abstract: 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. The coating system features (i) a softer primary coating with excellent low-temperature characteristics to protect against microbending in any environment and in the toughest physical situations and, optionally, (ii) a colored secondary coating possessing enhanced color strength and vividness. The secondary coating provides improved ribbon characteristics for structures that are robust, yet easily entered (i.e., separated and stripped). The optional dual coating is specifically balanced for superior heat stripping in fiber ribbons, with virtually no residue left behind on the glass. This facilitates fast splicing and terminations.Type: GrantFiled: May 6, 2010Date of Patent: March 27, 2012Assignee: Draka Comteq, B.V.Inventors: Bob J. Overton, Louis-Anne de Montmorillon, Simon Richard, Denis Molin, Marianne Bigot-Astruc, Pierre Sillard, David Boivin
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Patent number: 8131125Abstract: 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.Type: GrantFiled: February 11, 2011Date of Patent: March 6, 2012Assignee: Draka Comteq, B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
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Publication number: 20120040184Abstract: A method of manufacturing an optical fiber preform includes preparing from a first deposition tube a first rod that includes a central core and preparing from a second deposition tube a second rod that includes a buried trench. The method further includes fitting the second rod as a sleeve over the first rod. This disclosed method facilitates the manufacture of large-capacity fiber preforms using deposition benches having small and/or medium deposition capacity.Type: ApplicationFiled: August 10, 2011Publication date: February 16, 2012Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Frans Gooijer, Pierre Sillard
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Patent number: 8103143Abstract: Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.Type: GrantFiled: February 28, 2011Date of Patent: January 24, 2012Assignee: Draka Comteq, B.V.Inventors: Louis-Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Emmanuel Petitfrere, Yves Lumineau, Franciscus Johannes Achten, Marianne Bigot-Astruc, Pierre Sillard, Pascale Nouchi
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Publication number: 20110286710Abstract: An optical transmission fiber comprises a central core having an index difference ?n1 with an outer optical cladding; a first inner cladding having an index difference ?n2 with the outer cladding; and a second buried inner cladding having an index difference ?n3 with the outer cladding of less than ?3.10?3. The second buried inner cladding moreover contains Germanium in a weight concentration of between 0.5% and 7%. The fiber shows reduced bending and microbending losses whilst exhibiting the optical performances of a standard single-mode fiber (SSMF).Type: ApplicationFiled: August 3, 2011Publication date: November 24, 2011Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Pieter Matthijsse, Pascale Nouchi, Denis Molin, Marianne Bigot-Astruc, Pierre Sillard, Frans Gooijer, Ivo Flammer, Yves Lumineau
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Patent number: 8055111Abstract: A dispersion-shifted optical fiber (NZDSF) includes a central core (r1, Dn1), an inner cladding having at least three zones with a first intermediate cladding zone (r2, Dn2), a second ring zone (r3, Dn3) and a third buried trench zone (Wtr, Dnt). The buried trench zone has an index difference (Dnt) with the optical cladding between ?5·10?3 and ?15·10?3 and has a width (Wtr) between 2.5 ?m and 5.5 ?m. The present optical fiber, at a wavelength of 1550 nm, has reduced Rayleigh scattering losses of less than 0.164 dB/km, with limited bending losses.Type: GrantFiled: April 3, 2009Date of Patent: November 8, 2011Assignee: Draka Comteq, B.V.Inventors: Pierre Sillard, Elise Regnier, Marianne Bigot-Astruc, Denis Molin, Louis-Anne de Montmorillon, Simon Richard
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Patent number: 8041172Abstract: 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 ?m2 at a wavelength of 1550 nm and an effective cutoff wavelength (?Ceff) of less than 1600 nm. The optical fiber has an effective area of more than 120 ?m2 with a cutoff wavelength limited to less than about 1600 nm without degradation of other optical parameters (e.g., attenuation losses and dispersion).Type: GrantFiled: April 7, 2008Date of Patent: October 18, 2011Assignee: Draka Comteq, B.V.Inventors: Pierre Sillard, Denis Molin, Louis-Anne De Montmorillon, Marianne Bigot-Astruc, Simon Richard
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Publication number: 20110229101Abstract: The present invention embraces a single-mode optical fiber typically having reduced bending losses. The optical fiber includes a central core, an intermediate cladding, a buried trench, and an outer cladding. The optical fiber typically has (i), at a wavelength of 1310 nanometers, a mode field diameter with a nominal value of between about 8.6 microns and 9.5 microns (and a tolerance of ±0.4 micron), (ii) a cable cut-off wavelength of no more than 1260 nanometers, and (iii), for a bending radius of 15 millimeters at a wavelength of 1550 nanometers, bending losses of no more than 0.03 dB/turn.Type: ApplicationFiled: March 15, 2011Publication date: September 22, 2011Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Pierre Sillard
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Patent number: 7995889Abstract: An optical transmission fiber comprises a central core having an index difference ?n1 with an outer optical cladding; a first inner cladding having an index difference ?n2 with the outer cladding; and a second buried inner cladding having an index difference ?n3 with the outer cladding of less than ?3·10?3. The second buried inner cladding moreover contains Germanium in a weight concentration of between 0.5% and 7%. The fiber shows reduced bending and microbending losses whilst exhibiting the optical performances of a standard single-mode fiber (SSMF).Type: GrantFiled: November 19, 2009Date of Patent: August 9, 2011Assignee: Draka Comteq, B.V.Inventors: Louis-Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Ivo Flammer, Yves Lumineau, Marianne Bigot-Astruc, Pierre Sillard, Pascale Nouchi
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Publication number: 20110164852Abstract: Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.Type: ApplicationFiled: February 28, 2011Publication date: July 7, 2011Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Emmanuel Petitfrere, Yves Lumineau, Franciscus Johannes Achten, Marianne Bigot-Astruc, Pierre Sillard, Pascale Nouchi
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Publication number: 20110135264Abstract: 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.Type: ApplicationFiled: February 11, 2011Publication date: June 9, 2011Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
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Publication number: 20110085770Abstract: 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.Type: ApplicationFiled: October 12, 2010Publication date: April 14, 2011Inventors: Marianne Bigot-Astruc, Pierre Sillard, Louis-Anne De Montmorillon, Denis Molin, Simon Richard
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Patent number: 7899293Abstract: Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.Type: GrantFiled: September 4, 2009Date of Patent: March 1, 2011Assignee: Draka Comteq, B.V.Inventors: Louis-Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Emmanuel Petitfrere, Yves Lumineau, Franciscus Johannes Achten, Marianne Bigot-Astruc, Pierre Sillard, Pascale Nouchi
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Publication number: 20110044595Abstract: 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 ?m2 at a wavelength of 1550 nm and an effective cutoff wavelength (?Ceff) of less than 1600 nm. The optical fiber has an effective area of more than 120 ?m2 with a cutoff wavelength limited to less than about 1600 nm without degradation of other optical parameters (e.g., attenuation losses and dispersion).Type: ApplicationFiled: April 7, 2008Publication date: February 24, 2011Applicant: DRAKA COMTEQ B.V.Inventors: Pierre Sillard, Denis Molin, Louis-Anne De Montmorillon, Marianne Bigot-Astruc, Simon Richard
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Patent number: 7894698Abstract: An improved optical fiber achieves both reduced bending and microbending losses, as well as a much higher Brillouin threshold, as compared to standard transmission fibers. The optical fiber comprises a core including at least two dopants and having a refractive index difference ?n1 with an outer optical cladding, a first inner cladding having a refractive index difference ?n2 with the outer cladding, and a depressed, second inner cladding having a refractive index difference ?n3 with the outer cladding of less than ?3×10?3. The radial concentration of at least one of the core dopants varies continuously over the entire core region of the optical fiber.Type: GrantFiled: June 29, 2009Date of Patent: February 22, 2011Assignee: Draka Comteq B.V.Inventors: Ivo Flammer, Louis-Anne De Montmorillon, Pieter Matthijsse