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7620276 |
Optimized grating based biosensor and substrate combination
A grating-based biosensor is disclosed where the biosensor is constructed and arranged such that the grating lines of the sensor align with an optical axis of a birefringent substrate, so as to...
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7616844 |
Fabrication of fiber optic probes
A method of fabricating a sensor probe comprises:
placing the end of an optical fiber 10 in a polymerization space 2; applying a drop of hydrogel pre-gel solution 30 to the end of the...
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7615736 |
Optical sensor
An optical sensor includes a light source, a sensing unit, a first optical fiber transmitting light from the light source to the sensing unit, second and third optical fibers transmitting the light...
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7612887 |
Micro resonator sensor
A micro resonator sensor includes a main waveguide, a resonance waveguide and optical path changing means. Optical path changing means are installed at apex regions contacting with adjacent optical...
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7609932 |
Slot waveguide structure
A nanometer slot waveguide includes a nanometer slot waveguide structure with vertically stacked layers. The vertically stacked layers include a substrate, a first waveguide layer defining a first...
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7608812 |
Tamper detection system
A system and method for detecting radiation from a source in a container is disclosed. A continuous optical fiber path is disposed in a medium which is part of or associated with a container and...
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7608460 |
Fluorescent pH detector system and related methods
Fluorescent pH detector and methods for measuring pH using the fluorescent pH detector.
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7606457 |
Wire-free sensing apparatus for disc system
This invention relates to a wire-free sensing apparatus used in a disc system. The apparatus mainly comprises a beam emitting source installed at the case for emitting a beam, a reflector installed...
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7604984 |
Spatially scanned optical reader system and method for using same
An optical reader system is described herein that uses a scanned optical beam to interrogate a biosensor to determine if a biomolecular binding event occurred on a surface of the biosensor. In one...
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7603009 |
Double-ended distributed temperature sensing systems
The present invention comprises a system for deploying double-ended distributed temperature sensing (DTS) systems which utilizes less space than prior art systems. In one embodiment, the present...
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7603004 |
Neural network demodulation for an optical sensor
Methods and systems of neural network demodulation for an optical sensor. An optical sensor may be coupled to a structure and be capable of reflecting a reflected optical signal. A wavelength of...
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7599583 |
Sensors with modular architecture
A modular sensing system architecture. A sensing system includes multiple planes that are in electrical communication. A power plane provides a power source and a communications module that can be...
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7599582 |
Optical fiber cable take-up mechanism for scanning sensors
A scanning system includes a cable take-up mechanism that uses a series of pulleys that determine the bend diameters of a scanning system. The mechanism is particularly suited for a spectrometric,...
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7590314 |
Fiber optic sensor for tow wrap
A system and method for detecting unwanted wrapping of one or more of a plurality of strips of material around a feed roller intended to urge the strips of material forward. During proper...
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7586085 |
Photo-detection device and method
The broad range measurement exploiting the usual propagated light and the high resolution measurement mode exploiting near-field light are to be accomplished with a sole as-assembled optical probe....
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7583866 |
Optoelectronic system for sensing an electric field signal
An optoelectronic system for sensing an electric field signal includes an optically modulated scattering module configured to convert an electric field signal into a modulated scattering signal...
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7583865 |
Segmented fiber optic sensor and method
A fiber optic sensor for sensing the presence of an analyte has a plurality of optical fibers each of which has an analyte sensing segment and the fibers are deployed so that the analyte sensing...
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7582486 |
Double resonance interrogation of grating-coupled waveguides
A method for using a double resonance effect within a grating-coupled waveguide (GCW) sensor, as generated from a light beam with a given span of wavelengths or angles, is provided. The method can...
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7576840 |
Brillouin spectral measuring method and Brillouin spectral measuring apparatus
The present invention relates to a Brillouin spectrum measuring method and measuring apparatus that have a structure for more accurately measuring the parameters of Brillouin spectra at...
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7575939 |
Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements
Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also...
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7574075 |
Fiber Bragg grating and fabrication method
A method of fabrication of a thermally stabilized Type I fiber Bragg grating-based temperature sensing device includes doping a fiber core material with germanium or germanium oxide for enhancing...
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7574074 |
Method for detecting cracks in carbon fiber bicycle frame using embedded optical fiber
A method for detecting cracks in a carbon fiber bicycle frame using an embedded optical fiber is provided. Optical time-domain reflectometry is employed to detect cracks in a bicycle frame made of...
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7569807 |
Light source with photosensor light guide
The present invention provides a light source comprising one or more light-emitting elements, one or more photosensors and, a photosensor light guide, such as, for example, a substantially planar...
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7567742 |
Holey optical fiber with random pattern of holes and method for making same
A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas...
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7567740 |
Thermal sensing fiber devices
There is provided a thermal sensing fiber including a semiconducting element having a fiber length and characterized by a bandgap energy corresponding to a selected operational temperature range...
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7567734 |
Ridge waveguide optical sensor incorporating a Bragg grating
An optical sensor for sensing information relating to an analyte liquid or gas, has a a planar substrate having a refractive index n c . The planar substrate supports a ridge waveguide having an...
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7565042 |
Sensitive emission light gathering and flow through detection system
A luminometer is provided comprising a flow through waveguide and one or more detectors. The flow through waveguide has at least two openings and the sample is free to enter from one opening and...
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7563623 |
Biosensor
It is an object of the present invention to provide a biosensor on which a large amount of protein can be immobilized and nonspecific adsorption is less likely to occur with the use of a SAM...
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7561776 |
Method of preventing hydrogen darkening of optic fibre
A method of preventing hydrogen darkening of optic fiber, which includes a step of providing a protective barrier of hydrogen free flowing gas around the optic fiber, such that the flowing gas...
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7558446 |
All polymer optical waveguide sensor
The present invention is directed to an evanescent field induced optical sensor of a transparent polymer substrate coated with a thin transparent polymer waveguide for use as biosensor for...
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7555333 |
Integrated optical scanning image acquisition and display
An apparatus and method for providing image acquisition and/or image display in a limited region of interest (ROI). The apparatus comprises a micro electro-mechanical system (MEMS), preferably...
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7555321 |
Communication portable terminal device
It is an object of the invention to emit a light in order to brighten a large area by a single light source. The invention provides a communication portable terminal device including a single LED (...
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7551810 |
Segmented fiber optic sensor and method
A fiber optic sensor for sensing the presence of an analyte has a plurality of optical fibers each of which has at least one analyte sensing segment and one or more low loss lead portion, where the...
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7549803 |
Fiber optic generator condition monitor
A condition monitoring system for use in monitoring a generator. The condition monitoring system includes a sensor including an ion chamber located inside the generator for sensing particulates...
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7549337 |
Method for inspecting peeling in adhesive joint
A method is disclosed wherein a portion of a sensor part of an optical fiber sensor is embedded in an adhesive between two joined members, and peeling in an adhesive joint of the two members is...
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7548671 |
Optical device including waveguide grating structure
Optical devices including waveguide grating structures are described. In accordance with one embodiment, an optical device is provided comprising a horizontal waveguide grating structure having at...
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7545998 |
System for measurement and detection of parameters and anomalies
The subject of the invention is a system for measuring the state of panels in real time, particularly of one or more composite panels, characterized in that it has a network of very fine waveguides...
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7543982 |
Sensor and disturbance measurement method using the same
The present invention relates to a sensor or the like having a structure that enables accurate temperature measurement in a wide temperature range including a low-temperature region and is suitable...
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7542632 |
Composite structure with optical fiber embedded in one of its surface layers and a process for its connection and repair
The invention relates to a composite structure ( 11 ) formed by a plurality of layers ( 13, 15, 15, 19, 21, 23 ) including an optical fiber ( 25 ) for structural monitoring purposes which is at...
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7542142 |
Optical probes and probe systems for monitoring fluid flow in a well
Several optical probes useful in downhole applications are provided. A first probe has a tip in the form of a cubical corner with the diagonal of the cubical corner aligned with the axis of the...
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7541573 |
Optical sensors for sensing the refractive index of fluid samples
An optical sensor comprises a sensing element comprising a waveguide grating with a response that varies with an effective modal index experienced by light propagating in the grating and a sample...
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7539363 |
Fiber optic probe for detecting the presence or absence of one or more substances within a medium
A fiber optic probe for capable of simultaneously enhancing fluorescent emission collection and reducing stray excitation light noise levels while detecting the presence or absence of one or more...
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7539362 |
Optical probe and optical tomography system
An optical probe includes a tubular outer envelope and a optical fiber which extends in the longitudinal direction of the outer envelope inside the outer envelope. By fixing a light deflecting...
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7539361 |
Fiber optic device for measuring a parameter of interest
An optical fiber ( 100 ) utilized as a sensor for measuring a parameter of interest 122 such as temperature, strain, photonic energy intensity, electric field intensity and magnetic field...
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7536911 |
Diagnostic systems of optical fiber coil sensors for structural health monitoring
Devices for monitoring structural health conditions of host structures. A device includes at least one optical fiber sensor and an electronic module. The optical fiber sensor includes a rolled...
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7535576 |
Integrated optical rotation sensor and method for sensing rotation rate
Methods and apparatus are provided for a low cost optical gyro using thin film waveguides to direct light beams among the components of the gyro. The gyro includes a substrate having an insulator...
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7532781 |
Fiber-optic mat sensor
An optical sensor includes a support structure. An optical fiber has a plurality of bends arranged proximate the support structure. The optical fiber follows a circuitous path and is adapted to...
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7532780 |
Method for locating and measuring deformations in a work of civil engineering
A process for locating and measuring deformation in a civil engineering structure wherein at least one geosynthetic fabric ( 1 ) containing a plurality of optical fibers ( 2 a to 2 e ) in...
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7532779 |
Single mode (SM) fiber optical reader system and method for interrogating resonant waveguide-grating sensor(s)
An optical reader system is described herein which has a single mode (SM) optical fiber launch/receive system that uses one or more SM optical fibers to interrogate a biosensor and does not use...
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7529434 |
Brillouin distributed temperature sensing calibrated in-situ with Raman distributed temperature sensing
Methods and apparatus for distributed temperature sensing (DTS) along a single mode or multimode optical waveguide or fiber include a calibration of initial Brillouin-based DTS measurements using...
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