Matches 101 - 150 out of 714 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
7215859 Direct diode contact high power fiber optic laser system  
Embodiments include a fiber optic laser system having at least one optical waveguide with a laseable core and a pump cladding disposed adjacent the lasing core. A source of electromagnetic pumping...
7209620 Dispersion optimized fiber having higher spot area  
A dispersion optimized fiber having higher spot area comprising a center core region, a cladding region, a ring core region and an outer glass region is provided, wherein the cladding is provided...
7190864 Fiber collimating lenses and method  
A compact, inexpensive and rugged fiber collimating lens and lens array achieve large beam diameters and provide long working distances. A special single-mode fiber is inserted between a standard...
7187832 Gap-soliton devices in photonic crystal fibers  
A gap-soliton structure is provided. The gap-soliton structure includes a cladding structure having alternating layers of different index values. A core region is interposed between the alternating...
7180642 Imaging lens, image reader using the lens, and imaging apparatus using the image reader  
An imaging lens comprises a first, a second, a third, and a fourth lens group from an object toward an image. The first lens group includes a first lens that is a convex meniscus lens with a convex...
7174077 Fiber coupled laser diodes with even illumination pattern  
An optical fiber for evenly illuminating a target. The optical fiber is coupled to a laser emitting diode and receives laser light. The laser light travels through the fiber optic and exits at an...
7174078 Dual core photonic crystal fibers (PCF) with special dispersion properties  
An optical fiber for transmitting light, said optical fiber having an axial direction and a cross section perpendicular to said axial direction, said optical fiber comprising: (1) a first core...
7171090 Low attenuation optical fiber  
An optical waveguide fiber comprises: (a) a core with a refractive index profile having, a radius, an alpha and a relative refractive index characterized by delta % that varies along the radius;...
7171091 Tuned cladding fiber amplifier and laser  
Single transverse mode fiber amplifier and laser operation is obtained with a multi-mode signal core surrounded by cladding containing irregular microstructuring that causes loss in all of the core...
7164832 Optical fiber and optical communication system employing the optical fiber  
An optical fiber includes a core and a cladding surrounding the core. An absolute value of dispersion at a wavelength of 1550 nanometers is equal to or more than 4 ps/nm/km and equal to or less...
7162130 Optical fiber with thermoplastic material based coating  
Optical fiber having a glass portion; at least one protective coating of thermoplastic material having at least one thermoplastic elastomer; the thermoplastic material having the following...
7151880 Dispersion-managed optical soliton transmission system  
A dispersion-managed optical soliton transmission system uses alternating spans of positive-dispersion optical fiber having a negative slope and negative-dispersion optical fiber having a positive...
7146071 Optical transmission system  
An optical transmission system which permits transmission distance to be prolonged without using repeaters and yet ensures economical, high-quality optical transmission. A branch station performs...
7142771 Method of and apparatus for expanding mode field diameter of optical fiber  
A method of and an apparatus for expanding the mode field diameter of an optical fiber by heating a specified region of the optical fiber with a uniform or desired temperature distribution for...
7136558 Optical waveguide  
An optical fiber for communications systems, the fiber being designed to ensure a compensation of Kerr effects. The fiber has a profile which ensures that changes in power produce changes in...
7126748 Optical fiber, optical fiber module, and Raman amplifier  
An optical fiber has a Raman gain efficiency with a pump power at 1450 nanometers of equal to or more than 4 m/W, and a ratio of a nonlinear parameter γ at a wavelength of 1550 nanometers to the...
7127178 Optical communication device  
An optical extending device for use in transmission of optical signals which comprise at least one sequence of periodic optical signals, said optical device comprising: a first fiber optic having a...
7120340 Single polarization optical fiber laser and amplifier  
An optically active linear single polarization device includes a linearly birefringent and linearly dichroic optical waveguide ( 30 ) for propagating light and having single polarization wavelength...
7116877 Method of manufacturing an optical fibre suitable for high transmission rates  
The present invention relates to a method of manufacturing an optical fibre suitable for high transmission rates, which method comprises: i) supplying one or more glass forming precursors, and...
7113681 Polymer optical waveguide  
An optical waveguide in the form of an optical fibre ( 10 ) having at least one longitudinally extending light guiding core region ( 11 ) composed at least in part of a polymeric material, a...
7110649 Fresnel zoned microstructured fibre and lens  
A fresenel zoned microstructured optical fiber is described. The fiber is constructed of concentric zones, each zone being defined by discontinuities in the refractive index. The refractive index...
7110648 Analog optical transmission system  
The present invention relates to an analog optical transmission system having a construction for expanding an analog transmittable distance. The analog optical transmission system includes: a light...
7106934 Non-zero dispersion shifted optical fiber  
A low attenuation optical waveguide fiber having medium dispersion is disclosed. The core and the cladding are selected to provide a spectral attenuation at 1550 nm of less than 0.195 dB/km. The...
7106928 Coupling high power optical sources to small diameter fibers  
The present invention relates to coupling high power optical sources into small diameter optical fibers. In a first embodiment, an optical source is provided to the side of a fiber. The fiber is a...
7099546 Method for making a plastic graded index optical fiber and resulting graded index optical fiber  
The present invention concerns a method of manufacturing a graded index plastic optical fiber having an index that varies continuously between the center and the periphery of the fiber, from at...
7099535 Small mode-field fiber lens  
A fiber lens includes a graded-index lens, a single-mode fiber disposed at a first end of the graded-index lens, and a refractive lens having a hyperbolic or near-hyperbolic shape disposed at a...
7095932 Chromatic dispersion compensating optical fiber  
The invention relates to the field of single-mode chromatic dispersion compensating optical fibers for a wavelength multiplexing transmission network. A single-mode chromatic dispersion...
7088900 Alkali and fluorine doped optical fiber  
Disclosed is an optical fiber having a core of SiO 2 doped with fluorine and an alkali metal oxide dopant. The alkali metal oxide is selected from the group consisting of K, Na, Li, Cs and Rb and...
7088902 Photonic crystal and producing method thereof  
A photonic crystal and a producing method thereof are provided. The photonic crystal includes at least two media of different refractive indices formed on a semiconductor substrate. One of the...
7085463 Optical fiber and optical transmission line  
An optical fiber has a zero dispersion wavelength in a wavelength range of 1350 to 1410 nanometers; a dispersion of 2 to 8 ps/nm/km at a wavelength of 1550 nanometers; a dispersion slope of a...
7085470 Plastic fiber-optic cable and producing method for the same  
A clad is produced by polymerizing methyl methacrylate and (meth)acrylic acid ester having alicyclic hydrocarbon group. A core is produced by an interfacial-gel-polymerization method. A first...
7085451 Optical fiber gratings with azimuthal refractive index perturbation  
The present invention relates to a type of optical fiber grating having an azimuthal refractive-index perturbation. The optical fiber includes a fiber grating that has a plurality of grating...
7079737 Devices and methods for dynamic dispersion compensation  
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...
7076172 Waveguide fiber for noise suppression  
An optical waveguide system exhibiting reduced noise includes a varying dispersion optical waveguide fiber and a high frequency electrical filter. The varying dispersion fiber shifts the frequency...
7072565 Waveguide compositions and waveguides formed therefrom  
Provided are compositions which include a polymer, having units of the formula (RSiO 1.5 ), wherein R is a substituted or unsubstituted organic group, and a plurality of functional end groups. A...
7071524 Semiconductor light receiving device for repeatedly propagating incident light in light absorption layer and method for manufacturing the same  
A lower cladding layer is laminated on a substrate and constituted of at least one layer. A light absorption layer is laminated on the lower cladding layer. An upper cladding layer is laminated...
7072551 Single mode optical fiber with particular graded index as well as optical communication system  
The present invention relates to a single mode optical fibre comprising a first central region having a radius r 1 , a maximum refractive index value n 1 and at least one second ring surrounding...
7068901 Optical fiber preform producing method, optical fiber production method, and optical fiber  
An optical fiber preform comprises a central core portion having a maximal value Nc of refractive index in the center, and outside the central core portion, comprising at least a depressed portion...
7068904 Optical element with periodic structure  
An optical element comprising a periodic structure in which a refractive index is distributed periodically and a deforming portion, which mechanically deforms by an external action, wherein the...
7068943 Devices and methods for dynamic dispersion compensation  
The present invention provides devices and methods for dynamic dispersion compensation. According to one embodiment of the invention, a dispersion compensating device includes a negative dispersion...
7068895 Method of manufacturing an optical fibre suitable for high transmission rates  
The present invention relates to a method of manufacturing an optical fibre suitable for high transmission rates, which method comprises: i) supplying one or more glass forming precursors, and...
7062136 Optical fiber and optical transmission path  
Under condition that a non-circularity ratio is 5% or lower and a thermal expansion coefficient of a glass which forms the core is α 1 and a thermal expansion of a glass which forms the cladding...
7062139 Core of an optical patch cord and an optical signal transmission system using the same and a method for preparing the same  
The present invention discloses a core of an optical patch cord comprising a first end with a refraction index varying in a continuous manner along the radial direction, a second end including a...
7058271 Plastic optical fiber  
A plastic optical fiber low in attenuation in a high order mode and small in mode dispersion, is presented. The plastic optical fiber comprises at least a core and a clad surrounding the core,...
7058270 Method for preparing plastic optical fiber preform  
The present invention relates to a method for preparing a GI (graded index) plastic optical fiber preform having a radial refractive index gradient, the refractive index increasing gradually from...
7054070 Gradient-index lens and composite optical element utilizing the same  
A gradient-index lens is structured by a multilayer film that includes therein a plurality of layers each of which has different refractive index and layer thickness from the other.
7046889 Dispersion-shifted fiber  
A dispersion shifter fiber, which has zero dispersion wavelength on a long wavelength side beyond 1640 nm, a wavelength dispersion of −1.0 to −10.0 ps/nm/km at a wavelength range of 1530–1625...
7046884 Optical fiber, optical fiber tape, optical cable and optical connector with optical fiber  
The present invention relates to an optical fiber and the like comprising a structure enabling high-density packaging into an optical cable while making it possible to transmit signals with a high...
7046891 Low cutoff large effective area optical fiber  
An optical waveguide fiber having large effective area, low slope, low cutoff, and low attenuation is disclosed. The optical fiber has at least two core segments and the inner profile volume of the...
7035514 Glass base material, optical fiber, method for manufacturing thereof, and method for determining cause of defect thereof  
A glass base material, which is a base material of an optical fiber, comprising: a core; and a clad surrounding the core; wherein: a rate of change in a relative-refractive-index-difference between...
Matches 101 - 150 out of 714 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >