|
Match
|
Document |
Document Title |
|
|
6792214 |
Dispersion compensation in optical fiber transmission lines
An optical transmission system designed for gigabit pulse rates and Raman pumping in which there is essentially no pre-dispersion compensation and the in-line dispersion compensation at the start...
|
|
|
6792166 |
Laser assisted thermal poling of silica based waveguides
A method of thermally poling a silica based waveguide ( 12 ) comprises exposing a region of the waveguide ( 12 ) to an electric field (for example, via capillary electrodes ( 22, 24 ) inserted into...
|
|
|
6788865 |
Polarization maintaining optical fiber with improved polarization maintaining property
A polarization maintaining optical fiber is formed by using a core in a cross sectional shape having different diameters along two orthogonal axes defined on a plane perpendicular to an optical...
|
|
|
6788864 |
High index-contrast fiber waveguides and applications
High index-contrast fiber waveguides, materials for forming high index-contrast fiber waveguides, and applications of high index-contrast fiber waveguides are disclosed.
|
|
|
6785461 |
Blockless fiber optic attenuators and attenuation systems employing dispersion tailored polymers
Controllable fiber optic attenuators and attenuation systems are disclosed for controllably extracting optical energy from a fiber optic, and therefore attenuating the optical signal being...
|
|
|
6785456 |
Dispersion managed cable for unrepeatered systems
Optical fibers of different physical characteristics are combined to produce a hybrid fiber which, at the operating wavelength, has a relatively large effective area and desirable net dispersion...
|
|
|
6785454 |
Optical waveguide and optical circuit base component
In a conventional optical waveguide using a photonic crystal, loss of light occurs in the substrate therebelow. The invention provides an optical waveguide comprising a substrate, a core portion...
|
|
|
6785453 |
Dispersion shifted optical fiber
A dispersion shifted optical fiber comprising a core and cladding provided at an outer periphery of the core, and having a refractive index profile in which the core is provided with a central core...
|
|
|
6785455 |
Dispersion compensation unit and method of producing the same
A dispersion compensating fiber 1 is placed in the form of a coil or bundle within a housing 2 , and a filling material 3 having a viscosity of 0.01 Pa·s to 0.6 Pa·s at normal temperature...
|
|
|
6782175 |
Dispersion map for slope compensating fibers
An optical transmission system is provided. The system includes a series of consecutive blocks of optical fiber. Each block of the system includes a first, second and third series of spans of...
|
|
|
6782172 |
Optical fiber, optical transmission line and dispersion compensating module
Proposed are a dispersion compensating fiber and an optical transmission system that can, using a short length of the fiber, compensate the chromatic dispersion and the dispersion slope of a...
|
|
|
6782174 |
Method of repairing a slope-matched cable system and replacement cable portion for use therein
A method of repairing a slope-matched cable system that leaves the net chromatic dispersion of the system nominally unchanged comprises removing a portion of the slope-matched cable system that is...
|
|
|
6782151 |
Raman amplifier, optical transmission system and optical fiber
A Raman amplifier having a great Raman amplification gain is disclosed. An optical transmission system 1 is provided with an optical fiber 31 for Raman amplification and an optical multiplexer ...
|
|
|
6778748 |
Optical fiber, dispersion compensator using the same, and optical transmission system
The present invention provides an optical fiber having a compensation function of the dispersion characteristic of an optical transmission line in S-band, and preferably has a filter function for...
|
|
|
6778747 |
Radially varying and azimuthally asymmetric optical waveguide fiber
Disclosed is a single mode waveguide fiber and a method of making a single mode or multimode waveguide fiber which has an azimuthally and radially asymmetric core. This asymmetry provides...
|
|
|
6775449 |
Multimode optical fiber having reduced intermodal dispersion
An optical fiber for use in optical energy transmission system has improved mode coupling in one embodiment thereof and both improved mode coupling and selective attenuation of unwanted modes in...
|
|
|
6775443 |
Tight buffered optical cables with release layers
A tight buffered optical fiber having a protective layer generally surrounding the optical fiber, a release layer at least partially bonding to and generally surrounding the protective layer and a...
|
|
|
6775450 |
Micro-structured optical fibers
A micro-structured optical fiber precursor 1 is made by size reducing a multiple core optical fiber having solid multiple cores or a multiple core optical fiber preform O having multiple solid...
|
|
|
6775428 |
Device having a light transmission device
The invention provides a device having a light transmission device wherein a light-emitting element, a driving circuit for driving this light-emitting element, a light-receiving element...
|
|
|
6775447 |
All fiber low noise supercontinuum source
An optical fiber suitable for generation of a supercontinuum spectrum when light pulses of femtosecond (10 −15 sec.) duration are launched at a certain wavelength into the fiber. The fiber...
|
|
|
6771866 |
Photocatalyst apparatus, method of manufacture thereof and photocatalyst reactor
A photocatalyst apparatus includes a plurality of photocatalytic optical fibers, each having a photocatalytic clad on a solid or hollow core and a solid or hollow substrate having a surface for...
|
|
|
6771864 |
Optical fiber transmission line, optical cable, and optical transmission system
The present invention relates to an optical fiber transmission line and the like comprising a structure for enabling repeating sections to become further longer. The optical fiber transmission line...
|
|
|
6768822 |
Chromatic dispersion compensation
An optical dispersion compensation device includes a first optical compensation unit that applies non-linear dispersion compensation across a signal band, the first optical compensation unit being...
|
|
|
6768851 |
Optical fiber for ultra-high capacity transmission
An optical fiber is described in which a core is surrounded by a cladding having a refractive index that varies periodically in the angular sense around the core. By appropriate design of the...
|
|
|
6768847 |
Dispersion compensating module and fiber for control of residual dispersion
A dispersion compensating fiber and module are described for controlling residual dispersion in a dispersion compensated system. The dispersion compensating fiber is designed with dispersion curve...
|
|
|
6768838 |
Optical module
An optical module for optically coupling an input side and an output side with each other through an optically functional portion inserted between the input side and the output side. At least one...
|
|
|
6768839 |
Tunable, polymeric core, fiber Bragg gratings
Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. An optical fiber is formed having a tubular cladding...
|
|
|
6768849 |
Systems and methods for fabricating varying waveguide optical fiber device
Systems and methods are described for fabricating a varying-waveguide optical fiber. In one described method, a preform is fabricated having a core and at least one cladding region. The cladding...
|
|
|
6766078 |
Grating structure and optical devices
An optical waveguide ( 1 ) has a grating structure ( 2 ) in which gratings of different orders are superimposed. When first and second order gratings are superimposed, input light is partially...
|
|
|
6766091 |
Polymeric optical conductors
An optical cable, which is flame-retardant, and has excellent adhesion of the protective covering to the fiber cladding and uniform thickness of the fiber cladding, contains a polymer optical...
|
|
|
6766087 |
Nonlinear dispersion-shifted optical fiber, optical signal processing apparatus using said optical fiber and wavelength converter using said optical fiber
Disclosed is a nonlinear dispersion-shifted optical fiber, wherein a charomatic dispersion at a wavelength of 1550 nm is equal to a set value required for optical signal processing utilizing a...
|
|
|
6766088 |
Optical fiber and method for making the same
An optical fiber has a section of the first kind having a chromatic dispersion not less than a given positive value x and a negative chromatic dispersion slope at a given wavelength and a section...
|
|
|
6766089 |
Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber
A low-dispersion optical fiber provides both reduced chromatic dispersion in a used wavelength band and increased effective core area. The low-dispersion optical fiber is made by covering a center...
|
|
|
6763168 |
Optical fiber for in-line compensation of chromatic dispersion in an optical fiber with positive chromatic dispersion
At a wavelength of 1 550 nm an optical fiber has a chromatic dispersion from −12 to −4 ps/(nm.km) and a ratio of chromatic dispersion to chromatic dispersion slope from 250 to 370 nm. Its index...
|
|
|
6760518 |
Fiber grating optical waveguide device
The present invention relates to a fiber grating filter optical waveguide device, comprising an optical fiber with an optical filter, both consisting essentially of silica, whereby said optical...
|
|
|
6760525 |
Controlled dispersion optical fiber
Disclosed is a dispersion controlled optical waveguide fiber, and telecommunication systems using such a waveguide fiber, in which the end to end total dispersion and total dispersion slope is...
|
|
|
6760526 |
Chalcogenide doping of oxide glasses
The present invention relates to a glass article for use as an optical waveguide fiber and more particularly to an optical waveguide fiber, the core of which is doped with a chalcogenide element to...
|
|
|
6760528 |
Resin coated optical fiber
A thermoplastic resin coated optical fiber having an outer diameter of 0.9 mm is formed by providing a coating layer around a reinforcing resin coated optical fiber having an outer diameter of 0.25...
|
|
|
6760527 |
Large effective area optical fiber
An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously...
|
|
|
6760356 |
Application of Yb:YAG short pulse laser system
A diode pumped, high power (at least 20W), short pulse (up to 2 ps), chirped pulse amplified laser using Yb:YAG as the gain material is employed for material processing. Yb:YAG is used as the gain...
|
|
|
6757456 |
System for selecting an appropriate optical fiber type for a communication network
An optical fiber selection system automatically recommends an appropriate optical fiber type for a communication network, based on input from a user. In one embodiment, the system includes a user...
|
|
|
6757462 |
Bragg grating filter optical waveguide device
The present invention relates to a Bragg grating filter optical waveguide device, comprising an optical fiber provided with a Bragg grating region which is externally strained to alter the range of...
|
|
|
6757468 |
Dispersion compensation optical fiber and optical transmission line using same
A Dispersion Compensation (DC) fiber and transmission line including the same. The DC fiber has a refractive index profile having a central core with a core delta (Δ 1 ) value greater than 1.5%, a...
|
|
|
6754420 |
Optical fiber transmission line
An optical fiber transmission line for realizing satisfactory long haul transmission characteristics using two kinds of optical fibers. The optical fiber transmission line includes a plurality of...
|
|
|
6754424 |
High dispersion zero waveguide fiber
Disclosed is a single mode optical waveguide fiber designed for use in high performance telecommunication systems. The novel core profile design improves bending performance to provide enhanced...
|
|
|
6754421 |
Optical fiber and optical transmission line using the optical fiber
An optical fiber for forming an optical transmission line suitable for the wavelength division multiplexing transmission by connecting to a positive dispersion optical fiber is provided. Outside a...
|
|
|
6754413 |
Optical multiplexer, demultiplexer and methods
Methods and devices are provided for optical demultiplexing and optical multiplexing. An optical wavelength demultiplexer adapted to perform wavelength demultiplexing of an input optical signal...
|
|
|
6754416 |
Method for tensioning and positioning a fiber optic cable
A method for tensioning and positioning a fiber optic cable includes providing and securing a first portion of the fiber optic cable in a first support with a first clamp. A second portion of the...
|
|
|
6751390 |
Dispersion and dispersion slope compensating fiber and optical transmission system utilizing same
A dispersion and dispersion slope compensating optical fiber includes a segmented core and a cladding layer wherein the refractive index profile is selected to provide a dispersion having a maximum...
|
|
|
6751387 |
Microporous glass waveguides doped with selected materials
The present invention concerns waveguides made from porous glass which have been doped with certain selected materials which exhibit optical properties. In the context of the invention, the...
|