1
Ivo Flammer, Louis Anne De Montmorillon, Pieter Matthijsse: Optical fiber. Draka Comteq, Summa Additon & Ashe P A, June 30, 2009: US07555186 (238 worldwide citation)

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 Δn1 with an outer opt ...


2
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 (126 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 − ...


3
Pieter Matthijsse, Frans Gooijer, Ivo Flammer, Elise Regnier, Gerard Kuyt: Fluorine-doped optical fiber. Draka Comteq, Summa Additon & Ashe P A, April 28, 2009: US07526177 (43 worldwide citation)

A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent fluorine and an index difference (|Δn2|) with pure silica g ...


4
Louis Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Ivo Flammer, Yves Lumineau, Marianne Bigot Astruc, Pierre Sillard, Pascale Nouchi: Single mode optical fiber. Draka Comteq, Summa Additon & Ashe P A, August 9, 2011: US07995889 (11 worldwide citation)

An optical transmission fiber comprises 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 ...


5
Ivo Flammer, Louis Anne De Montmorillon, Pieter Matthijsse: Optical fiber. Draka Comteq, Summa Additon & Ashe P A, February 22, 2011: US07894698 (5 worldwide citation)

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 Δn1 with an outer opt ...


6
Louis Anne de Montmorillon, Denis Molin, Pieter Matthijsse, Frans Gooijer, Ivo Flammer, Yves Lumineau, Marianne Bigot Astruc, Pierre Sillard, Pascale Nouchi: Single mode optical fiber. Draka Comteq, Additon Higgins & Pendleton P A, September 16, 2014: US08837889 (4 worldwide citation)

An optical transmission fiber comprises 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 ...


7
Ivo Flammer: Optical fiber with reduced stimulation Brillouin scattering. Draka Comteq, Sughrue Mion PLLC, October 14, 2008: US07437040 (4 worldwide citation)

An optical fiber having a given refractive index profile comprises a core region and a cladding region. The core region includes at least two co-dopants and the concentration of at least one of said core dopant varies continuously over the entire core region. The optical fiber has, at a wavelength o ...


8
Pieter Matthijsse, Frans Gooijer, Ivo Flammer, Elise Regnier, Gerard Kuyt: Fluorine-doped optical fiber. Draka Comteq, Summa Additon & Ashe P A, March 30, 2010: US07689093 (2 worldwide citation)

A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent fluorine and an index difference (|Δn2|) with pure silica g ...


9
Guangjun Xu, Larry Zeng, Ivo Flammer, Dennis Robert Simons, Cedric Gonnet, Rob Hubertus Matheus Deckers: Extended-baking process for glass deposition tubes. Draka Comteq, Momentive Performance Materials, Summa Additon & Ashe P A, May 24, 2011: US07946135 (1 worldwide citation)

Disclosed is a method of heat treating quartz glass deposition tubes at between 900° C. and 1200° C. for at least 115 hours. The resulting deposition tubes are useful in forming optical preforms that can yield optical fibers having reduced added loss.


10
Guangjun Xu, Larry Zeng, Ivo Flammer, Dennis Robert Simons, Cedric Gonnet, Rob Hubertus Matheus Deckers: Glass-tube extended-baking process. Draka Comteq, Summa Additon & Ashe P A, July 31, 2012: US08230702

Disclosed is a method of heat treating quartz glass deposition tubes at between 900° C. and 1200° C. for at least 115 hours. The resulting deposition tubes are useful in forming optical preforms that can yield optical fibers having reduced added loss.