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7340138 |
Optical fiber devices and methods for interconnecting dissimilar fibers
A coupling waveguide is interconnected between a launching fiber and a receiving fiber to reduce coupling loss. The coupling waveguide includes an integrally formed graded index lens having a...
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7340131 |
Collimator and optical filter device using the same
It is a collimator adapted to convert divergent light beams outputted from an optical fiber bundle to parallel light beams through a collimator lens. A large diameter optical fiber is disposed...
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7340136 |
Multi-wavelength optical fiber
The invention features a fiber that includes an optical fiber ( 110 ) containing a gain medium having a Raman active material with a Raman gain spectrum. The optical fiber is configured to receive...
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7336864 |
Opto-electronic board
An opto-electronic board including a printed wiring board with an optical waveguide, a metallic area, and a hole, wherein an abutting face of the optical waveguide and an abutting face of the...
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7336861 |
Fiber-optic sensor or modulator using tuning of long period gratings with self-assembled layers
The provision of an ionic self-assembled multilayer (ISAM) film on a fiber-optic element including a long period grating (LPG) by a simple, room temperature process provides tuning of the LPG...
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7333690 |
Evanescent waveguide couplers
A multi-port planar evanescent coupler having N inputs and M outputs, where both N and M are each no less than three, formed of combinations of at least one of at least one planar evanescent 2×2...
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7333702 |
Fiber optics transmission line
Even if a fiber fuse phenomenon occurs to start fire spreading, the fire spreading is shut off. A graded index fiber (GIF) 3 is inserted between transmission-use single mode fibers (SMF) 2 a , 2...
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7333696 |
Tape-shaped optical fiber cable
A tape-shaped optical fiber cable has: a tape member formed of a fiber material and a cured resin formed around the fiber material; and an optical fiber embedded in the tape member. The optical...
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7333705 |
Photonic crystal energy converter
A photonic crystal is configured with wavelength converting material to act as a concentrator for electromagnetic energy. The concentrator may also be configured with energy conversion devices to...
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7333692 |
Optical waveguide assembled with an optical subunit having a diffractive element set and an optical component
An apparatus comprises an optical transmission element, a diffractive element set formed in or on the transmission element, and an optical component. The diffractive element set is positioned to...
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7333691 |
Low loss tunable ring resonator allpass filter
An apparatus, including an optical ring resonator having a waveguide ring with substantially straight waveguide segments and bent waveguide segments. The bent waveguide segments are optically...
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7333686 |
System and method for a re-configurable optical channel dropping de-multiplexer
A re-configurable channel dropping de-multiplexer comprises an input, an output, a first 1×2 optical switch optically coupled to the input, a second 1×2 optical switch optically coupled to the...
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7330613 |
Waveguide type optical device
A waveguide type optical device has an optical waveguide formed on a substrate, functional optical waveguide an optical input end face and an optical output end face which are provided to...
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7330618 |
Waveguide structure
An improved waveguide structure employing blocks of waveguide core material positioned sufficiently close to a waveguide core thereby eliminating strain effects and its resulting undesirable...
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7324724 |
Optical fiber devices using component insertion
The present invention provides an optical fiber device that takes advantage of the fiber structure to construct mechanically stable devices with components inserted in the optical path. An optical...
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7324729 |
Optical device
An optical device is made up of a glass substrate, an optical fiber array fixed to an upper portion of the glass substrate, a slit that extends from an upper surface of the optical fiber array into...
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7324723 |
Optical waveguide having specular surface formed by laser beam machining
An optical waveguide having means for performing optical coupling with high efficiency at a predetermined position in an optical circuit substrate and which optionally includes an...
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7324725 |
Tunable optical add-drop multiplexer based on SOI wafer and manufacturing method thereof
A tunable optical add-drop multiplexer (OADM) based on an SOI (silicon-on-insulator) wafer is disclosed. The tunable OADM includes a multimode interference region, at least a grating formed on the...
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7315672 |
Optical device
An optical variable attenuator 1 has a planar waveguide 2 and an actuator structure 3. The planar waveguide 2 is provided with an input optical waveguide core 4 A for input of an optical...
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7315665 |
Liquid-crystal planar-waveguide apparatus and method for fast control of polarization and other properties of light
A polarization controller includes a plurality of liquid crystal cells positioned as cladding on a waveguide that propagates a beam of light so that the evanescent field extends into the liquid...
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7315667 |
Propagating light to be sensed
Light to be sensed is spreaded across an entry surface of a transmission structure with a laterally varying energy transmission function. For example, the light could be output from a...
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7310468 |
Photonic crystal waveguide, homogeneous medium waveguide, and optical device
A photonic crystal waveguide and a homogeneous medium waveguide for enabling a steep bend and arrangement at an arbitrary angle with low propagation loss. A photonic crystal waveguide has a core...
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7309169 |
Single-channel communication device for optical fibre
The field of the invention is that of fiber-optic communication devices known as transceivers, used in the aeronautical field for ensuring that on-board electronic computers can converse with one...
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7310462 |
Biochemical assay detection in a liquid receptacle using a fiber optic exciter
Biochemical assays that are performed in cuvettes and in the wells of multi-well plates and that utilize excitation and light emission as labels for detection are enhanced by an illumination and...
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7309880 |
Display apparatus and method for producing the same
A display apparatus includes an array of fiber-type semiconductor light-emitting elements. Each of the fiber-type semiconductor light-emitting elements includes a layered structure having a first...
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7308173 |
Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof
An optical fiber coupler capable of providing a low loss, high coupling coefficient interface between conventional optical fibers and optical waveguide devices is provided. The novel coupler, which...
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7308170 |
Optical fiber coupler having a relaxed alignment tolerance
An optical coupler converts a light distribution from a light source into a small angle distribution that extends over a volume larger than the variations in the alignment of an optical fiber. In...
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7306378 |
Method and apparatus providing an electrical-optical coupler
An electrical-optical coupling device. An apparatus according to an embodiment of the present invention includes a first trench defined in a first semiconductor substrate. A first reflector is...
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7308167 |
Optical assembly with optoelectronic device alignment
At least one optical waveguide is supported on a substrate and has a plurality of key apertures formed in a complaint element thereof. An optoelectronic device such as a vertical cavity surface...
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7308161 |
System and method for wavelength selective switching employing single-element gratings
A wavelength selective switch device is disclosed that includes an elongated signal communication path extending from a first end of the device to a second end of the device. The signal...
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7308205 |
Optical transmission apparatus
In an optical transmission apparatus in which a plurality of nodes are optically connected to one another via an optical transmission path, a light signal which is coded so that a mixture ratio of...
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7305159 |
Dual-reflector light coupler
A reflector chamber, used to couple a light source to a downstream light-transport medium, includes a forward reflector which folds the light impinging upon it forward and a backward reflector that...
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7304734 |
Fluorescence analysis optical multiplexer/demultiplexer, fluorescence analysis optical module, fluorescence analyzer, fluorescence/photothermal conversion spectroscopic analyzer, and fluorescence analysis chip
A fluorescence analysis optical multiplexer/demultiplexer, a fluorescence analysis optical module, a fluorescence analyzer, a fluorescence/photothermal conversion spectroscopic analyzer, and a...
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7301879 |
Optical print head
An optical print head for recording on a medium includes a plurality of lasers having laser emissions within a desired wavelength range, an optical fiber adapted to receive combined light from the...
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7302189 |
Optical component provided with demultiplexing function and wavelength dispersion compensator
It is an object of the present invention to provide an optical component provided with a demultiplexing function capable of reducing an insertion loss and downsizing, and a wavelength dispersion...
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7302137 |
Optical coupler apparatus and method
A planar lightwave circuit coupler including first and second waveguides with curved coupling portions having radii of curvature selected such that the coupler has a splitting ratio that is...
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7302136 |
Assembly of optical components and method for assembling same
An assembly is disclosed for optical components, the assembly comprising: a platform for receiving and supporting a plurality of carrier components having optical components mounted thereon;...
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7301686 |
Optically controlled optical-path-switching apparatus, and method of switching optical paths
An optical signal optical path switching method comprising steps of using a thermal lens based on a distribution of refractive index produced reversibly caused by temperature increase generated in...
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7298943 |
Monolithic optical component
The present invention relates to a monolithic optical component ( 400 ) comprising a light-absorbing layer and a waveguide structure ( 2 ). The invention is more particularly adapted to a...
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7298940 |
Illumination system and display system employing same
A compact, light weight, efficient and cost-effective illumination system for optical displays is disclosed. The illumination system is capable of producing a self-luminous light beam of selected...
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7295738 |
System and method for performing dispersion compensation
An exemplary embodiment of the present invention includes an optical circulator. The circulator may have, for example, a first port, a second port, and a third port. The first port may be...
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7292754 |
Compensating interferometer including delay lines with reduced noise
Methods and apparatus for reducing noise in optical apparatus comprising a delay line by utilizing a plurality of wavelength specific delay lines to delay an input waveform such as a pulse rather...
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7292750 |
Signal processing system
A signal processing system ( 10 ) has a plurality of optical fibers ( 40, 42, 43 ) with their one ends ( 40 ) mounted in an array board ( 41 ) to receive electromagnetic radiation. A coupler ( 54 )...
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7289702 |
Optical waveguide apparatus
The present invention provides an optical module using optical waveguides which permits easy fabrication of a PLC type optical multiplexer/demultiplexer with reduced loss. The optical module...
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7289700 |
Blazed grating optical fiber polarizing coupler
The blazed grating optical fiber polarizing coupler comprises a first optical fiber with a Bragg diffraction grating formed in its core at substantially the Brewster's angle with respect to an...
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7286763 |
Optical add/drop multiplexer having a banded channel configuration
An optical add/drop multiplexer (OADM) adapted to route optical signals having at least two different bit rates. The OADM has at least two sets of DWDM channels, e.g., with channels in a first set...
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7283709 |
Integrated microelectromechanical wavelength selective switch and method of making same
A fully integrated microelectromechanical (MEMS) lxK wavelength selective switch (WSS) includes an array of N solid-immersion micromirrors (SIMs) and a K+1 dispersion waveguide arrays that are...
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7283703 |
Movable lens beam steerer
An apparatus and system having an optoelectronic module, as well as a method of positioning the lens of the optoelectronic module in order to adjust the steering of a light beam are described herein.
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7283701 |
Optical fiber transmission system with increased effective modal bandwidth transmission
A multi-mode optical fiber link is described that includes a single-mode optical fiber having an input that receives an optical signal for transmission through the multi-mode optical fiber link. A...
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7283697 |
Point to strip optical communication system
A point to strip optical communication system ( 200 ) for transmitting light between a first housing ( 102 ) and a second housing ( 104 ) of a device is provided. The point to strip optical...
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