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6895154 |
Photonic crystal optical waveguides having tailored dispersion profiles
An optical waveguide having a working mode with a tailored dispersion profile, the waveguide including: (i) a dielectric confinement region surrounding a waveguide axis, the confinement region...
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6895155 |
Method of fabricating an optical fiber with microstructures
An optical fiber with microstructures comprises a plurality of capillary tubes disposed around a central rod and including a self-cleaning layer including molecules able to react with hydroxyl...
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6890260 |
Illuminated player tracking card for a gaming apparatus
A gaming apparatus is provided which includes a display unit, a value input device, and a card reader having a light generating source and a data reading apparatus. The gaming apparatus also...
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6890589 |
Self-formable optical waveguide material composition
Into a mixture solution 2 of a high-refractive-index photo-curable resin A and a low-refractive-index photo-curable resin B, light capable of curing only the resin A is led through an optical...
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6888987 |
Cylindrical processing of optical media
A method for cylindrical processing of an optical medium, including optical fiber and optical materials of substantially cylindrical form. The method of the preferred embodiments includes the steps...
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6888991 |
Single-mode fiber systems
Single-mode optical fiber systems, incorporating fiber of core radius of sufficient size to support the fundamental mode together with from one to three higher order modes, exhibit performance/cost...
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6887701 |
Microarrays and their manufacture
The microarrays of the present invention are prepared by using a separate fiber for each compound being used in the microarray. The fibers are bundled and sectioned to form a thin microarray that...
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6885802 |
Network for distributing signals to a plurality of user equipment
A network for distributing signals to a plurality of user having a distribution unit and a plurality of optical cables adapted to make the distribution unit communicate with the plurality of user...
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6885808 |
Optical probe and optical pick-up apparatus
Disclosed is an optical probe for obtaining a micro spot light, comprising a rod-like glass body having a rectangular cross section as a core for propagating a light wave. The distal end portion of...
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6882788 |
Optical fibre
The present invention relates to an optical fibre mainly consisting of silica glass, which fibre comprises:
i) an inner core having a first refractive index n1 and a first diameter a; ii) an...
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6879764 |
Dispersion shifted fiber having low dispersion slope
Dispersion shifted fiber having low dispersion slope comprising a center core, two claddings, a ring core and the outer glass region, wherein the first cladding is provided onto the outer periphery...
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6879755 |
Optical structure for the compensation of chromatic dispersion and dispersion slope in a light signal
A dispersion compensator for the compensation of chromatic dispersion in a multi-channel light signal is provided. The compensator includes a pair of optical structures each having a waveguide and...
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6879762 |
Optical transmission line and optical transmission system using optical transmission line
Disclosed is an optical transmission line having a length L of 30 km to 150 km, preferably 30 km to 70 km, an absolute value of a dispersion not smaller than 8 ps/nm/km at a wavelength of 1.55 μm...
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6879763 |
Reverse dispersion optical fiber and optical transmission line using reverse dispersion optical fiber
A reverse dispersion optical fiber having a small waveform distortion caused by non-linearity wherein an effective core area is made at least 50 μm 2 and a dispersion at a wavelength of the 1.55...
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6876803 |
Optical transmission system
The present invention provides an optical transmission system that enables high-speed transmission of 40 Gb/s with low residual dispersion while maintaining the yield of a dispersion compensating...
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6873774 |
Transmission optical fiber
The present invention relates to a transmission optical fiber. The transmission optical fiber including a core and a cladding made of SiO 2 is characterized in that GeO 2 and F are doped in SiO 2...
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6873776 |
Waveguide fiber for dispersion and slope compensation
Disclosed is a total dispersion and total dispersion slope compensating optical waveguide fiber. The refractive index profile of the compensating waveguide fiber includes a core region having a...
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6873775 |
Graded-index optical fiber
An optical fiber having a core that has a graded refractive index profile is disclosed. A clad surrounds the core and traps light within the core. A difference between differential mode delays...
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6870980 |
Raman amplifier system
A Raman amplifier system is provided for amplifying optical signals that are transmitted via a transmission medium, the series circuit being composed of a standard single-mode fiber arranged on a...
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6870999 |
Isotopically altered optical fiber
An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A...
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6868212 |
Method and apparatus for controlling wavelength and dominant mode in fiber lasers
A method for adjusting the wavelength and dominant mode of a laser fiber prior to installation in a laser assembly includes the steps of linearly stretching the laser fiber so as to modify its...
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6868213 |
Optical fiber and production method therefor
The present invention provides an optical fiber which has a hollow portion extending along the axis and which reduces degradation of the optical characteristics, and a production method thereof. An...
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6868196 |
Optical circuit board
The present invention provides a method and apparatus for an optical processor. Polymerizable compounds in a specific composition containing photo-reactive materials, optically polar materials, and...
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6868210 |
Optical waveguide and their application of the optical communication system
An optical transmitter/receiver module of wavelength division multiplexing type which undergoes a reduced excess loss resulting from the displacement of a dicing position is fabricated with a high...
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6868223 |
Illumination apparatus, exposure apparatus using the same and device fabrication method
An illumination apparatus for using a beam emitted from a light source to illuminate an object area includes a condensing optical system for condensing the beam emitted from the light source, and a...
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6865326 |
Optical transmission line and optical transmission system
An optical transmission line and an optical transmission system, the handling of which is easy, and in which transmission loss and the absolute value of cumulative chromatic dispersion is small...
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6865328 |
Positive dispersion optical fiber
The present invention provides devices and methods for dispersion compensation. According to one embodiment of the invention, a dispersion compensating device includes a negative dispersion fiber...
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6865327 |
Method of making optical fiber with reduced E-band and L-band loss peaks
Applicants have discovered the existence of loss peaks in optical fiber transmission systems using wavelengths in the E-band and the L-band. Specifically, they have discovered the existence of...
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6865318 |
Athermal optical components
Athermal optical components comprise cubic crystalline materials including silver chloride and cesium bromide, or comprise composites of at least two layers of different compositions wherein the...
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6862391 |
Optical transmission line, and optical fiber and dispersion compensating module employed in the same
The present invention relates to an optical transmission line and the like having a chromatic dispersion with a small absolute value as a whole within a signal wavelength band including S, C, and L...
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6861148 |
Plastic optical fiber preform
A preform from which plastic optical fiber is to be drawn in an infrared heating furnace has a core portion with either a step index or graded-index profile, and a cladding layer surrounding the...
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6859585 |
Optical filter
An optical filter comprising a slanted Bragg grating inscribed in an optical fiber portion comprising a core having a refractive index n 1 and a radius R core and a cladding having an average...
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6859596 |
Systems and methods for forming ultra-low PMD optical fiber using amplitude and frequency keyed fiber spin functions
A system and method is disclosed for manufacturing single mode optical fiber which incorporates a spin in the molten fiber during manufacturing. The introduction of spin minimizes a form of...
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6859595 |
Optical fiber and optical transmission system including the same
The present invention relates to an optical fiber which enables favorable optical communications in 1.3-μm and 1.55-μm wavelength bands, and an optical transmission system including the same. The...
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6859597 |
Index-guiding microstructured optical fibers
An index-guiding microstructured optical fiber, having a majority of the cross-section of the core and cladding regions occupied by voids. The voids are dimensioned such that an effective index of...
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6856743 |
NZDSF optical fiber with low dispersion zero and low slope
An optical waveguide fiber having an effective area of greater than about 60 μm 2 at a wavelength of about 1550 nm, a dispersion slope of less than 0.07 ps/nm 2 /km at a wavelength of about 1550...
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6856734 |
Waveguide structure using polymer material and method
Disclosed is the use of a polymer material in an optical waveguide structure. The polymer material may be used in either the cladding or the core material of an optical waveguide. The use of...
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6856740 |
Optical fiber having an elevated threshold for stimulated Brillouin scattering
An optical fiber having an elevated threshold for stimulated Brillouin scattering is provided. The optical fiber includes a core and a cladding surrounding the core with both the core and the...
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6856739 |
Optical fiber for resisting hydrogen-induced loss
The invention provides an optical fiber composition which has a high resistance to aging upon exposure to hydrogen. The inventive optical fiber does not require further treatment steps, such as...
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6853784 |
Optical fiber
The present invention relates to an optical fiber comprising a structure enabling WDM transmissions by utilizing the whole wavelength range of 1300 nm to 1625 nm as a signal wavelength band. In the...
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6853786 |
Photonic-crystal fibers and photonic-crystal fiber devices
A photonic crystal fiber comprising: a core ( 20 ) having a refractive index; and a cladding region ( 10 ) at least substantially surrounding the core ( 20 ) and comprising a bulk material having a...
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6853785 |
Index modulation in glass using a femtosecond laser
The invention relates to inducing a refractive index change in the glass substrate of a polymer coated optical device by using a high numeric aperture lens to focus a femtosecond laser beam through...
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6850678 |
Reduced four-wave mixing optical fiber for wavelength-division multiplexing
An optical fiber includes a core for guiding light of a specified range of wavelengths therethrough, each wavelength in the specified range of wavelengths traveling through the core at a particular...
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6849333 |
Optical fiber with an improved primary coating composition
The present invention is directed to a radiation curable primary coating composition and an optical fiber with said coating. The primary coating preferably results in excellent mechanical and...
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6850677 |
Method and system for dispersion maps and enhanced distributed gain effect in long haul telecommunications using distributed and remotely pumped erbium-based amplification
A system and method of providing a transmission span for a telecommunications link based on a remote Er 3+ -doped fiber amplification scheme is provided, where a transmission span comprises first...
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6850679 |
Microstructured optical fiber and method of making
A microstructured optical fiber is structured with a core region and a cladding region surrounding the core region. A cross section of the fiber portion conforms to a translationally symmetric...
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6847762 |
Monitoring and correcting bragg gratings during their fabrication
In accordance with some embodiments of the present invention, while a Bragg grating is being written in a substrate, measurements may be taken to allow changes to be made in the writing process to...
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6847769 |
Optical fiber amplifier
An optical amplifier comprises a doped fiber core and a cladding layer surrounding the core. The mode field diameter of the fiber is greater than 8 μm and the refractive index difference between...
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6845201 |
Poled fiber, a method of fabricating the poled fiber, and a dispersion compensator
A method of fabricating a poled fiber and a dispersion compensator. The method including patterning to cover an etching-resistant material on the body portions of the cladding and on one end or...
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6845204 |
Photonic band gap fiber
An optical fiber having a periodical cladding structure providing an photonic band gap structure with superior qualities. The periodical structure being one wherein high index areas are defined and...
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