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Title: Multimode optical fiber

Patent ·
OSTI ID:1163190

A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).

Research Organization:
Draka Comteq, B.V., Amsterdam, NL (Netherlands)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0002786
Assignee:
Draka Comteq, B.V. (Amsterdam, NL)
Patent Number(s):
8,879,878
Application Number:
13/534,793
OSTI ID:
1163190
Resource Relation:
Patent File Date: 2012 Jun 27
Country of Publication:
United States
Language:
English

References (234)

Silica based optical fiber waveguide using phosphorus pentoxide and germanium dioxide patent September 1978
Optical fiber patent January 1980
Multicomponent optical waveguide having index gradient patent September 1980
High bandwidth optical waveguide having B.sub.2 O.sub.3 free core and method of fabrication patent October 1980
High bandwidth optical waveguides and method of fabrication patent October 1980
Method of producing internally coated glass tubes for the drawing of fibre optic light conductors patent June 1981
Method of producing optical fibers patent February 1982
High bandwidth optical waveguide patent July 1982
Optical waveguide having optimal index profile for multicomponent nonlinear glass patent September 1983
Concentric core optical fiber coupler patent August 1984
Method for producing optical fibers patent January 1987
Method for producing a preform for drawing optical fibers patent January 1987
Device for storing information in an optical fiber transmission system patent March 1987
Fiber for optical transmission patent December 1987
Bandwidth enhancement of multimode optical transmisson lines patent February 1988
Single mode bend insensitive fiber for use in fiber optic guidance applications patent June 1989
Flexible optical graded-index profile fiber for transmission of laser radiation with high output with substantial preservation of the mode structure patent May 1992
Method of connecting high numerical aperture optical waveguides patent August 1992
Method and device for outside plasma deposition of hydroxyl ion-free silica patent March 1993
Multiwavelength data communication fiber link patent January 1994
Mode field diameter conversion fiber patent January 1995
Method of building up an optical fiber preform by plasma deposition, and an optical fiber obtained from the preform built up by the method patent May 1996
Polypropylene-polyethylene copolymer buffer tubes for optical fiber cables and method for making the same patent November 1996
Method of producing an optical fiber preform from a plurality of tubes having different thermal conductivities patent December 1997
Stress concentrations in an optical fiber ribbon to facilitate separation of ribbon matrix material patent February 1998
Polypropylene-polyethylene copolymer buffer tubes for optical fiber cables and method for making the same patent June 1998
Optical waveguide fiber containing titania and germania patent November 1998
Polyolefin materials suitable for optical fiber cable components patent June 1999
Stress concentrations in an optical fiber ribbon to facilitate separation of ribbon matrix material patent November 1999
Free-space optical signal switch arrangement patent December 1999
Optical unit for fiber optic cables patent March 2000
Polypropylene filler rods for optical fiber communications cables patent May 2000
Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith patent July 2000
Method for accessing optical fibers in the midspan region of an optical fiber cable patent October 2000
Optical fiber multi-ribbon and method for making the same patent January 2001
Method for accessing optical fibers contained in a sheath patent January 2001
Propagation in lowest order modes of multimode graded index fiber, resulting in: very low transmission loss, low modal noise, high data security, and high data rate capabilities patent February 2001
Method of making a glass fiber preform with adjusting a spacing while increasing acceleration of a starting glass powder patent March 2001
Polypropylene filler rods for optical fiber communications cables patent April 2001
Flexible thermoplastic polyolefin elastomers for buffering transmission elements in a telecommunications cable patent April 2001
Method of purifying silica and depositing on an optical fiber preform patent August 2001
Dispersion compensation device patent September 2001
Multi-mode optical fiber having improved refractive index profile and devices comprising same patent September 2001
Thick-walled cable jacket with non-circular cavity cross section patent November 2001
Optical fiber having water swellable material for identifying grouping of fiber groups patent November 2001
Method for manufacturing optical fiber ribbon patent November 2001
Optical fiber ribbon matrix material having optimal handling characteristics patent December 2001
Color-coded optical fiber ribbon and die for making the same patent April 2002
Dispersion compensating optical fiber, and wavelength division multiplexing transmission line using a dispersion compensating optical fiber patent October 2002
Dispersion-compensating fiber having a high figure of merit patent December 2002
Optical drop cable for aerial installation patent December 2002
System and method for providing integrated optical waveguide device patent June 2003
Buffer tube that results in easy access to and low attenuation of fibers disposed within buffer tube patent August 2003
Optical transmission line, negative dispersion optical fiber used for the optical transmission line, and optical transmission system comprising optical transmission line patent August 2003
Laser optimized multimode fiber and method for use with laser and LED sources and system employing same patent September 2003
Method and apparatus to reduce variation of excess fiber length in buffer tubes of fiber optic cables patent September 2003
Protective skin for optical fibers patent December 2003
Laser optimized multimode fiber and method for use with laser and LED sources and system employing same patent April 2004
Optical transmission line patent April 2004
Method of impressing a twist on a multimode fiber during drawing patent May 2004
Optical fiber cable with cushion members protecting optical fiber ribbon stack patent June 2004
Plastic optical fiber patent June 2004
Low bend loss optical fiber and components made therefrom patent August 2004
Downhole geothermal well sensors comprising a hydrogen-resistant optical fiber patent February 2005
Super-large-effective-area (SLA) optical fiber and communication system incorporating the same patent June 2005
Optimized fiber optic cable suitable for microduct blown installation patent June 2005
Method and apparatus to reduce variation of excess fiber length in buffer tubes of fiber optic cables patent July 2005
Fiber optic cable having no rigid strength members and a reduced coefficient of thermal expansion patent September 2005
Optical fiber for amplification or for laser emission patent February 2006
Graded-index multimode fiber and manufacturing method therefor patent May 2006
Multimode optical fibers with increased bandwidth patent May 2006
Applicator for high-speed gel buffering of flextube optical fiber bundles patent May 2006
Method of making a jacketed preform for optical fibers using OVD patent August 2006
Use of buffer tube coupling coil to prevent fiber retraction patent January 2007
Apparatus and methods for launching an optical signal into multimode optical fiber patent June 2007
Dual dopant dual alpha multimode optical fiber patent January 2008
Method and apparatus for curing a fiber having at least two fiber coating curing stages patent January 2008
Coated central strength member for fiber optic cables with reduced shrinkage patent March 2008
Chromatic dispersion compensating fiber patent April 2008
WDM system having chromatic dispersion precompensation patent July 2008
Graded-index multimode fiber and manufacturing method therefor patent July 2008
Multimode optical fibre having a refractive index profile, optical communication system using same and method for manufacturing such a fibre patent September 2008
Multi-wavelength, multimode optical fibers patent September 2008
Large mode area fibers using higher order modes patent January 2009
Chromatic dispersion compensating fiber patent January 2009
Water-swellable tape, adhesive-backed for coupling when used inside a buffer tube patent April 2009
Fluorine-doped optical fiber patent April 2009
Low bend loss coated optical fiber patent May 2009
Optical fiber patent June 2009
Fiber optic cable having a water-swellable element patent July 2009
Optical fiber cable suited for blown installation or pushing installation in microducts of small diameter patent August 2009
Communication cable assembly and installation method patent August 2009
Single-mode optical fiber patent September 2009
Gel-free buffer tube with adhesively coupled optical element patent October 2009
Single mode optical fiber patent November 2009
Optical fiber cable having a deformable coupling element patent December 2009
Optical fiber cable having raised coupling supports patent January 2010
Optical fiber telecommunications cable patent January 2010
Multimode optical fiber with low differential mode delay patent January 2010
Modified pre-ferrulized communication cable assembly and installation method patent February 2010
Method for manufacturing an optical fiber preform patent April 2010
Coupling composition for optical fiber cables patent May 2010
Large-mode-area optical fibers with reduced bend distortion patent August 2010
Bend resistant multimode optical fiber patent August 2010
Method for measuring a differential mode delay of a multimode optical fiber patent October 2010
Method for accessing optical fibers within a telecommunication cable patent October 2010
Optical communication system as well as a access network provided therewith patent November 2010
Equalizing modal delay of high order modes in bend insensitive multimode fiber patent January 2011
Optical fiber, optical fiber ribbon, and optical interconnection system patent February 2011
Bend-insensitive single-mode optical fiber patent February 2011
Low bend loss single mode optical fiber patent March 2011
Large numerical aperture bend resistant multimode optical fiber patent March 2011
Buffer tubes for mid-span storage patent June 2011
High-fiber-density optical fiber cable patent July 2011
Multimode optical fibers patent August 2011
Multimode fiber patent August 2011
Reduced-diameter, easy-access loose tube cable patent October 2011
Optical-fiber loose tube cables patent October 2011
Reduced-diameter ribbon cables with high-performance optical fiber patent October 2011
Transmission optical fiber having large effective area patent October 2011
Dispersion-shifted optical fiber patent November 2011
Single-fiber drop cables for MDU deployments patent December 2011
Single-mode optical fiber having reduced bending losses patent March 2012
Reduced-size flat drop cable patent March 2012
Microbend-resistant optical fiber patent March 2012
ADSS cables with high-performance optical fiber patent April 2012
Multi-mode bending-resistant fiber and production method thereof patent May 2012
Buffer tube with adhesively coupled optical fibers and/or water-swellable element patent June 2012
Single-mode optical fiber patent April 2013
Optical fiber for metropolitan and access network systems patent-application August 2002
Optical fiber and wavelength division multiplex transmission line patent-application November 2002
Laser optimized multimode fiber and method for use with laser and LED sources and system employing same patent-application December 2002
Method of manufacture of an optical waveguide article including a fluorine-containing zone patent-application February 2003
Method for the manufacture of optical fibers, improved optical fibers, and improved Raman fiber amplifier communication systems patent-application July 2004
Optical fiber preform producing method, optical fiber production method, and optical fiber patent-application December 2004
Graded-Index Optical Fiber patent-application January 2005
Optical fiber patent-application February 2006
Multimode optical fiber for high rate LAN, method for manufacturing the same , and test bed thereof patent-application July 2007
Bend resistant multimode optical fiber patent-application July 2008
Grease-Free Buffer Optical Fiber Buffer Tube Construction Utilizing a Water-Swellable, Texturized Yarn patent-application November 2008
Large-mode-area optical fibers with reduced bend distortion patent-application March 2009
Bend insensitivity in single mode optical fibers patent-application March 2009
Low Bending Loss Multimode Fiber Transmission System patent-application April 2009
Bend Resistant Multimode Optical Fiber patent-application June 2009
Bend Resistant Multimode Optical Fiber patent-application July 2009
Microbend-Resistant Optical Fiber patent-application July 2009
Optical Cable Buffer Tube with Integrated Hollow Channels patent-application August 2009
Buffer Tube with Adhesively Coupled Optical Fibers and/or Water-Swellable Element patent-application November 2009
Optical Fiber Telecommunication Cable patent-application December 2009
Wavelength Multiplexed Optical System with Multimode Optical Fibers patent-application January 2010
Multimode Optical Fibers patent-application February 2010
Multimode Fiber With At Least Dual Cladding patent-application February 2010
Bandwidth-maintaining multimode optical fibers patent-application March 2010
Optical Fiber Cable Assembly patent-application April 2010
Amplifying Optical Fiber and Method of Manufacturing patent-application May 2010
Reduced-Diameter Optical Fiber patent-application May 2010
Amplifying Optical Fiber and Production Method patent-application June 2010
Ionizing Radiation-Resistant Optical Fiber Amplifier patent-application June 2010
Multimode Optical System patent-application June 2010
Buffered Optical Fiber patent-application June 2010
Method and Device for Manufacturing an Optical Preform patent-application June 2010
Perforated Water-Blocking Element patent-application July 2010
Method of Classifying a Graded-Index Multimode Optical Fiber patent-application July 2010
UVLED Apparatus for Curing Glass-Fiber Coatings patent-application July 2010
Single-Mode Optical Fiber patent-application July 2010
Single-Mode Optical Fiber Having an Enlarged Effective Area patent-application July 2010
Single-Mode Optical Fiber patent-application July 2010
Central-Tube Cable with High-Conductivity Conductors Encapsulated with High-Dielectric-Strength Insulation patent-application August 2010
Optical Fiber Amplifier Having Nanostructures patent-application August 2010
Cable Having Lubricated, Extractable Elements patent-application August 2010
Reliability Multimode Optical Fiber patent-application September 2010
Multimode Fiber patent-application October 2010
Large Bandwidth Multimode Optical Fiber Having a Reduced Cladding Effect patent-application December 2010
Graded Index Multimode Optical Fiber patent-application January 2011
Tight-Buffered Optical Fiber Unit Having Improved Accessibility patent-application February 2011
Self-Compensating Multi-Mode Fiber patent-application February 2011
Modified Refractive Index Profile For Low-Dispersion Multi-Mode Fiber patent-application February 2011
Multi-Mode Bending-Resistant Fiber and Production Method Thereof patent-application February 2011
Methods for calculating multimode fiber system bandwidth and manufacturing improved multimode fiber patent-application March 2011
Multimode Fiber Having Improved Reach patent-application March 2011
Multimode Optical Fiber Having Improved Bending Losses patent-application March 2011
Multimode Optical Fiber patent-application March 2011
Methods and Devices for Cable Insertion into Latched-Duct Conduit patent-application March 2011
Optical fiber for sum-frequency generation patent-application March 2011
High-Fiber-Density Optical-Fiber Cable patent-application March 2011
Single Mode Optical Fiber with Depressed Trench patent-application April 2011
Optical-Fiber Cable Having High Fiber Count and High Fiber Density patent-application April 2011
Rare-Earth-Doped Optical Fiber Having Small Numerical Aperture patent-application May 2011
High-Bandwidth Multimode Optical Fiber with Reduced Cladding Effect patent-application May 2011
High-Bandwidth, Dual-Trench-Assisted Multimode Optical Fiber patent-application May 2011
Multimode Optical Fiber with Low Bending Losses and Reduced Cladding Effect patent-application June 2011
High-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses patent-application June 2011
Water-Soluble Water-Blocking Element patent-application July 2011
Non-Zero Dispersion Shifted Optical Fiber Having a Short Cutoff Wavelength patent-application August 2011
Non-Zero Dispersion Shifted Optical Fiber Having a Large Effective Area patent-application August 2011
Broad-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses patent-application September 2011
Single-Mode Optical Fiber patent-application September 2011
Bundled fiber optic cables patent-application November 2011
Data-Center Cable patent-application November 2011
Curing Apparatus Employing Angled UVLEDs patent-application November 2011
Multimode Fiber patent-application December 2011
Curing Method Employing UV Sources That Emit Differing Ranges of UV Radiation patent-application January 2012
Adhesively Coupled Optical Fibers and Enclosing Tape patent-application January 2012
Method and apparatus providing increased UVLED intensity and uniform curing of optical-fiber coatings patent-application February 2012
Method of fabricating an optical fiber preform patent-application February 2012
Single-Mode Optical Fiber patent-application March 2012
Optical-Fiber Module Having Improved Accessibility patent-application March 2012
Multimode Optical Fiber Insensitive to Bending Losses patent-application April 2012
Radiation-Insensitive Optical Fiber Doped with Rare Earths patent-application May 2012
Rare-Earth-Doped Optical Fiber patent-application June 2012
Broad-Bandwidth Optical Fiber patent-application August 2012
Multimode Optical Fiber patent-application August 2012
Optical-Fiber Interconnect Cable patent-application August 2012
Rare-Earth-Doped Amplifying Optical Fiber patent-application September 2012
Bend-Resistant Multimode Optical Fiber patent-application September 2012
Multimode Optical Fiber patent-application October 2012
High-Bandwidth, Radiation-Resistant Multimode Optical Fiber patent-application November 2012
Single-Mode Optical Fiber patent-application November 2012
Single-Mode Optical Fiber patent-application December 2012
Multimode Optical Fiber patent-application January 2013
Trench-Assisted Multimode Optical Fiber patent-application January 2013
Few Mode Optical Fibers for Mode Division Multiplexing patent-application March 2013
Multimode Theory of Graded-Core Fibers journal November 1973
Comprehensive theory of dispersion in graded-index optical fibers journal February 2000
Transmission characteristics of graded-index optical fibers with a lossy outer layer journal January 1978
Modal dispersion in multimode graded-index fibers journal January 1975
Computer-Aided Synthesis of the Optimum Refractive-Index Profile for a Multimode Fiber journal March 1977
Opportunities to enhance multimode fiber links by application of overfilled launch journal November 2005
Simulation-based prediction of multimode fiber bandwidth for 10 Gb/s systems
  • Morikuni, J.; Mena, P.; Whitlock, B. K.
  • LEOS 2002. 2002 IEEE/LEOS Annual Meeting 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society, The 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society https://doi.org/10.1109/LEOS.2002.1159452
conference January 2002
Multimode Fibers for Compensating Intermodal Dispersion of Graded-Index Multimode Fibers journal July 2004
High-Speed Transmission in Multimode Fibers journal February 2010
Profile synthesis in multicomponent glass optical fibers journal January 1977
Low Bending Sensitivity of Regular OM3/OM4 Fibers in 10GbE Applications conference January 2010
15.6-Gb/s transmission over 1 km of next generation multimode fiber journal May 2002

Cited By (7)

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Multimode optical fiber with high bandwidth over an extended wavelength range, and corresponding multimode optical system patent June 2017
9 LP-mode fiber designs for mode-division multiplexing patent June 2017
Bend-insensitive multimode optical fiber patent April 2017
Hydrogen-resistant optical fiber patent March 2017
Multimode optical fiber patent March 2017
High-bandwidth, radiation-resistant multimode optical fiber patent August 2016

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