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Match Document Document Title
7623748 Optical fiber unit for air blown installation  
The present invention relates to an optical fiber unit for air blown installation, which includes at least one optical fiber; a buffer layer surrounding the optical fiber and made of radiation...
7613374 Optical fiber and optical-fiber transmission line  
An optical fiber that transmits a signal light in a fundamental propagation mode has a cutoff wavelength longer than a wavelength of the signal light, a wavelength dispersion of the fundamental...
7603015 Optical fiber with large effective area  
An optical fiber comprising: a glass core extending from a centerline to a radius R 1 ; a glass cladding surrounding and in contact with the core, the cladding comprising: a first annular region...
7603014 Method for the manufacture of optical fibers and improved optical fibers  
The present invention is directed to a universal channel dispersion compensating fiber (CDCF) for WDM channel compensation that provides essentially zero dispersion slope over the wide wavelength...
7590324 Double-clad optical fibers and devices with double-clad optical fibers  
A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n 1 and...
7590319 Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling  
A POF includes an inner core having a refractive index distribution and an outer core provided on periphery of the inner core. A ratio Ra/Rb of an outer diameter of the inner core to the outer core...
7587111 Single-mode optical fiber  
Disclosed is an optical transmission fiber having reduced bending and microbending losses that is commercially usable in FTTH or FTTC transmission systems.
7583878 Optical fiber, optical fiber ribbon, and optical interconnection system  
An optical fiber is made of silica-based glass, and includes a core and a cladding. The optical fiber has a mode field diameter of 5.4 micrometers or larger at a wavelength of 1300 nanometers,...
7580600 Free space high power fiber coupler  
A waveguide receiving light which propagates through free space is configured with a coupler and delivery fiber. The coupler, including a GREEN or multimode fiber, has a protective coating and so...
7574088 Optical fiber and optical fiber ribbon, and optical interconnection system  
An optical fiber, made of silica-based glass, comprising a core and a cladding. The optical fiber having a mode field diameter of 6.5 μm or larger at a wavelength of 1300 nm, transmitting light...
7570857 Low bend loss dispersion slope compensating optical fiber  
A dispersion compensating optical waveguide fiber that includes a core region surrounded by and in contact with a clad layer, wherein the respective refractive index profiles of the core region and...
7570856 Apparatus and method for an erbium-doped fiber for high peak-power applications  
A method and apparatus using a gain medium in the form of a multiply clad gain fiber having an erbium-doped core. In some embodiments, aluminum and germanium are added to the silica core to make λ...
7565050 Light pipe having an improved structure of prisms  
The present invention is directed to a light pipe having an improved structure of prisms. According to one embodiment of the present invention, a hollow light pipe comprises an inner-surface...
7558456 Optical waveguide device  
An optical waveguide device includes a lower cladding layer, a high refractive index region provided on the lower cladding layer, a pair of cores provided on the lower cladding layer on both sides...
7555187 Large effective area fiber  
An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R 1 wherein R 1 is greater than about 5 μm; a glass cladding...
7555186 Optical fiber  
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...
7551819 Multiple-core photonic-bandgap fiber with coupling between the cores  
An optical coupler includes a first optical port, a second optical port, a third optical port, and a fourth optical port. The optical coupler further includes a photonic-bandgap fiber having a...
7542488 Fiber laser  
An optical fiber for producing laser radiation at a characteristic wavelength includes a first multimode core region and an active region embedded within the core region for producing radiation at...
7539381 Low bend loss coated optical fiber  
An optical fiber includes a core and a cladding, said cladding having a refractive index n c a first coating directly contacting the cladding of said fiber, said coating having a thickness of less...
7532797 Optical fiber  
The present invention relates to an optical fiber for light pulse expansion in which the ratio (β 3 /β 2 ) of the third derivative β 3 to the second derivative β 2 is negative, the absolute...
7529452 Method for manufacturing single mode optical fiber having low polarization mode dispersion  
A method for manufacturing a single mode optical fiber with a reduced PMD (Polarization Mode Dispersion), by drawing an optical fiber preform composed of a core and a clad surrounding the core,...
7526169 Low bend loss quasi-single-mode optical fiber and optical fiber line  
Quasi-single mode optical waveguide fibers are disclosed that are bend resistant and capable of providing single mode transmission, for example at wavelengths greater than 1260 nm when the...
7526168 Optical fiber, transmission system, and wavelength division multiplexing system  
An optical fiber has a first mode field diameter in a dominant mode of an acoustic mode generated in the optical fiber different from a second mode field diameter in a light intensity distribution...
7526166 High numerical aperture fiber  
An optical fiber comprising: a silica based core having a first index of refraction n 1 ; and at least one silica based cladding surrounding the core, the at least one silica based cladding...
7519255 Optical fiber  
An inner core has a first refractive index. An outer core having a second refractive index lower than the first refractive index is formed on outer circumference of the inner core. A cladding...
7519254 Polarization insensitive microbend fiber gratings and devices using the same  
A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP 1m...
7515802 Glass fibre with at least two glass layers  
The glass fiber for an optical amplifier has a matrix glass core, a first glass cladding, and a second glass cladding. The matrix glass core has a composition, in mol %, of Bi 2 O 3 , 30-60; SiO 2...
7505655 White light-emitting device using fluorescent fiber  
A white light-emitting device using a fluorescent fiber includes a blue semiconductor light-emitting element ( 2 ) for emitting an excitation light (a), and an optical fiber ( 3 ) having one side...
7502539 Rare earth doped optical fiber  
An optical fiber including: (i) a silica based, Yb doped core having a first index of refraction n 1 , said core comprising more than 1 wt % of Yb, said core having less than 5 dB/km loss at a...
7496261 Dispersion compensating optical fiber and dispersion compensating optical fiber module  
A dispersion compensating optical fiber for NZ-DSFs, includes: an uncovered dispersion compensating optical fiber; a double-layered resin coating disposed around the uncovered dispersion...
7492999 Optical fiber and optical-fiber transmission line  
An optical fiber transmits at least a signal light having a wavelength of 1550 nanometers in a fundamental propagation mode. The optical fiber has, a cutoff wavelength equal to or longer than 1550...
7489847 Optical fiber with tunable birefringence using pressurized liquid capillaries  
A single-mode optical fiber segment incorporating liquid-filled holes parallel to the core that are sealed at each end. Heating the liquid produces stress in the fiber and thereby increases the...
7483614 Optical fiber and optical device using the same  
There is disclosed an optical fiber wherein an absolute value of the fourth order dispersion β 4 of fourth derivative β 4 of propagation constant β with respect to angular frequency ω at a...
7483612 Large mode area fibers using higher order modes  
The specification describes an optical fiber device wherein a LOM is converted to an HOM prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output...
7483610 Optical fiber having reduced defect density  
An optical fiber comprising a multimode glass core having a diameter of at least 250 microns and an index of refraction and a polymer cladding having a thickness and contactingly surrounding a...
7477822 Component with optical fiber and associated optical fiber  
The invention relates to the field of components with optical fibers and of associated optical fibers. The invention relates, on the one hand, to a component with optical fiber including an at...
7463805 High numerical aperture optical fiber  
An optical fiber, comprising: a core with a first refractive index (n 1 ); a silica based outer cladding surrounding the core, the outer cladding having a refractive index (n), such that the core...
7457500 Large-mode-area, multimode, hybrid optical fibers and devices using same  
A large mode area optical fiber is configured to support multiple transverse modes of signal radiation within its core region. The fiber is a hybrid design that includes at least two axial segments...
7455460 Fiber optic connector with double-clad stub fiber  
A fiber optic connector having a double-clad specialty optical stub fiber with a deep index core-to-inner-cladding profile and a raised index outer-cladding profile. The double-clad optical stub...
7454109 Optical fiber with zero dispersion wavelength shifted to short wavelength region, and optical transmission line and optical transmission system using the same  
Disclosed is an optical fiber suitable for WDM system, particularly whose zero-dispersion wavelength is positioned in a short wavelength band less than 1,300 mm. In the optical fiber, dispersion...
7450808 Optical fiber article and methods of making  
A method of making an optical fiber article can include providing an optical fiber including at least a core; providing a preform; and subsequent to the foregoing providing of the optical fiber and...
7450807 Low bend loss optical fiber with deep depressed ring  
Optical waveguide fiber that is bend resistant and single moded at 1260 nm and at higher wavelengths. The optical fiber includes a core and cladding, the cladding having an annular inner region, an...
7450806 Microstructured optical fibers and methods  
Microstructured optical fiber and method of making. Glass soot is deposited and then consolidated under conditions which are effective to trap a portion of the consolidation gases in the glass to...
7447408 Imaging system and related techniques  
A method and apparatus for imaging using a double-clad fiber is described.
7440672 Optical fiber for optical amplifier and process for manufacturing thereof  
The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130...
7440665 Optical fiber  
An optical fiber not only can suppress SBS but also can be produced easily. The optical fiber 1 comprises an optical core region 10 including the center axis and an optical cladding region 14 ...
7440165 Optical fiber  
Provided is an optical fiber. The optical fiber includes a core and a cladding, the core containing a first element for inducing non-linear Raman phenomenon, and the cladding containing a second...
7437045 Dispersion optimized optical fiber for wideband optical transmission  
A dispersion optimized optical fiber for wideband optical transmission is disclosed. The fiber comprise centre core, inner cladding, ring core, outer cladding and outer glass region, characterized...
7437040 Optical fiber with reduced stimulation Brillouin scattering  
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...
7433565 Side-scattering light guides  
The invention relates to side-scattering light guides that generally comprise a core of transparent optically homogenous material seeded with diffuser particles. The light guide also comprises an...
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