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).
-
Patent number: 7889960Abstract: 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 the central core's refractive index difference ?n1. The depressed trench has a radius r3 and a negative index difference ?n3 with the optical cladding. The optical fiber has a nominal mode field diameter (MFD) between 8.6 microns and 9.5 microns at a wavelength of 1310 nanometers, and at a wavelength of 1550 nanometers, the optical fiber has bending losses less than 0.15 dB/turn for a radius of curvature of 5 millimeters and cable cut-off wavelengths of less than or equal to 1260 nanometers.Type: GrantFiled: May 6, 2009Date of Patent: February 15, 2011Assignee: Draka Comteq B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
-
Publication number: 20100290781Abstract: 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: May 6, 2010Publication date: November 18, 2010Applicant: DRAKA COMTEQ B.V.Inventors: Bob J. Overton, Louis-Anne de Montmorillon, Simon Richard, Denis Molin, Marianne Bigot-Astruc, Pierre Sillard, David Boivin
-
Publication number: 20100189397Abstract: An optical fiber includes a central core, which has a radius r1 and a refractive index n1, and a surrounding optical cladding, which has a refractive index n2 such that n2<n1 and 0.31%<((n1?n2)÷n2)<0.55%. The optical cladding has at least five holes. These holes, which are positioned between about 9 microns and 17 microns from the central core, have a radius rh such that 0.5r1?rh?r1.Type: ApplicationFiled: January 22, 2010Publication date: July 29, 2010Applicant: DRAKA COMTEQ, B.V.Inventors: Simon Richard, Louis-Anne de Montmorillon, Pierre Sillard, Marianne Bigot-Astruc, Denis Molin
-
Publication number: 20100189400Abstract: A single-mode optical fiber possesses, at a wavelength of 1550 nanometers, an effective area greater than about 90 ?m2 without degradation of the optical fiber's other optical parameters. The single-mode optical fiber includes a central core, a first intermediate cladding, a second intermediate cladding, and an outer cladding. The optical fiber also has a cable cut-off wavelength of less than 1260 nanometers. Additionally, at a wavelength of 1310 nanometers, the optical fiber possesses a mode field diameter of between about 8.6 microns and 9.5 microns. Furthermore, 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: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Applicant: DRAKA COMTEQ, B.V.Inventors: Pierre Sillard, Denis Molin, Louis-Anne de Montmorillon, Marianne Bigot-Astruc, Simon Richard
-
Publication number: 20100189399Abstract: 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: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Applicant: DRAKA COMTEQ B.V.Inventors: Pierre Sillard, Denis Molin, Louis-Anne de Montmorillon, Marianne Bigot-Astruc, Simon Richard
-
Publication number: 20100067859Abstract: 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: November 19, 2009Publication date: March 18, 2010Applicant: 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
-
Publication number: 20100021117Abstract: Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.Type: ApplicationFiled: September 4, 2009Publication date: January 28, 2010Applicant: 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
-
Patent number: 7623747Abstract: An optical transmission fiber includes 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 6, 2006Date of Patent: November 24, 2009Assignee: 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
-
Publication number: 20090279835Abstract: 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: ApplicationFiled: May 6, 2009Publication date: November 12, 2009Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
-
Publication number: 20090279836Abstract: 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 the central core's refractive index difference ?n1. The depressed trench has a radius r3 and a negative index difference ?n3 with the optical cladding. The optical fiber has a nominal mode field diameter (MFD) between 8.6 microns and 9.5 microns at a wavelength of nanometers, and at a wavelength of 1550 nanometers, the optical fiber has bending losses less than 0.15 dB/turn for a radius of curvature of 5 millimeters and cable cut-off wavelengths of less than or equal to nanometers.Type: ApplicationFiled: May 6, 2009Publication date: November 12, 2009Applicant: DRAKA COMTEQ B.V.Inventors: Louis-Anne de Montmorillon, Simon Richard, Denis Molin, David Boivin, Marianne Bigot-Astruc, Pierre Sillard
-
Publication number: 20090263092Abstract: 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: ApplicationFiled: June 29, 2009Publication date: October 22, 2009Applicant: DRAKA COMTEQ B.V.Inventors: Ivo Flammer, Louis-Anne De Montmorillon, Pieter Matthijsse
-
Publication number: 20090252469Abstract: 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: ApplicationFiled: April 3, 2009Publication date: October 8, 2009Applicant: DRAKA COMTEQ B.V.Inventors: Pierre Sillard, Elise Regnier, Marianne Bigot-Astruc, Denis Molin, Louis-Anne de Montmorillon, Simon Richard
-
Patent number: 7587111Abstract: Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.Type: GrantFiled: April 9, 2007Date of Patent: September 8, 2009Assignee: 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
-
Patent number: 7555186Abstract: 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: December 4, 2007Date of Patent: June 30, 2009Assignee: Draka Comteq B.V.Inventors: Ivo Flammer, Louis-Anne De Montmorillon, Pieter Matthijsse
-
Patent number: 7483613Abstract: 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 dispersion (SSi), have values of opposite signs.Type: GrantFiled: November 2, 2007Date of Patent: January 27, 2009Assignee: Draka Comteq B.V.Inventors: Marianne Bigot-Astruc, Louis-Anne De Montmorillon, Denis Molin, Pierre Sillard
-
Patent number: 7428361Abstract: A chromatic dispersion compensating and dispersion slope compensating optical fiber comprises a central core having an index difference ?n1 with an outer optical cladding, a first buried inner cladding having an index difference ?n2 with the outer cladding, a ring having an index difference ?n3 with the outer cladding and a second buried inner cladding having an index difference ?n4 with the outer cladding. The index difference between the first buried inner cladding and the outer cladding ?n2 is less than or equal to ?13.5.10?3 and the index difference between the second buried inner cladding and the outer cladding ?n4 is less than or equal to ?3.10?3. The fiber has, for a wavelength of 1550 nm, a chromatic dispersion less than or equal to ?50 ps/nm/km and a ratio of the chromatic dispersion over the chromatic dispersion slope DOS less than or equal to 70 nm. The second deeply buried inner cladding allows obtaining a low DOS value whilst maintaining acceptable optical characteristics.Type: GrantFiled: June 7, 2006Date of Patent: September 23, 2008Assignee: Draka Comteq B.V.Inventors: Marianne Bigot-Astruc, Pierre Sillard, Louis-Anne De Montmorillon, Denis Molin
-
Publication number: 20080152288Abstract: 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: ApplicationFiled: December 4, 2007Publication date: June 26, 2008Inventors: Ivo Flammer, Louis-Anne De Montmorillon, Pieter Matthijsse
-
Publication number: 20080107426Abstract: 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 dispersion (SSi), have values of opposite signs.Type: ApplicationFiled: November 2, 2007Publication date: May 8, 2008Applicant: DRAKA COMTEQ B.V.Inventors: Marianne Bigot-Astruc, Louis-Anne De Montmorillon, Denis Molin, Pierre Sillard
-
Patent number: 7369732Abstract: The invention relates to an chromatic dispersion-compensating optical fibre in the S-band, for use in compensating for the chromatic dispersion of either a standard SMF optical fibre or of an NZ-DSF optical fibre, carrying an optical signal in the spectral band in use, which is the S-band extending from 1460 nm to 1530 nm. The chromatic dispersion-compensating optical fibre in the S-band has a wavelength corresponding to the global chromatic dispersion minimum, which is situated outside the spectral band in use, that is to say outside the S-band.Type: GrantFiled: March 11, 2005Date of Patent: May 6, 2008Assignee: Draka Comteq B.V.Inventors: Maxime Gorlier, Denis Molin, Louis-Anne De Montmorillon, Pierre Sillard
-
Patent number: 7356234Abstract: 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 wavelength of 1550 nm, the optical fiber exhibits a positive chromatic dispersion of 21 ps/(nm·km) or higher and a ratio of mode radius to intermediate cladding radius of (W02/r2) of 0.7 or less. The present optical fiber has a good figure of merit value and limited bending and microbending losses. The optical fiber can be rolled up in a housing of reduced size in a chromatic dispersion compensating optical module having limited insertion losses and reduced polarization mode dispersion.Type: GrantFiled: May 2, 2007Date of Patent: April 8, 2008Assignee: Draka Comteq B.V.Inventors: Louis-Anne de Montmorillon, Denis Molin, Marianne Bigot-Astruc, Pierre Sillard