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US20130286382 LIGHT GUIDE PLATE HOLDER AND LIGHT GUIDE PLATE TESTING SYSTEM USING SAME  
A light guide plate holder includes a base, a partitioning plate, and two clamping blocks. The base includes a bottom wall and two side walls extending from opposite ends of the bottom wall, the...
US20120176243 CABLE, SHEATH, AND SYSTEMS  
Disclosed herein are cables, cable systems, security systems, and detection components. According to an implementation, a cable may have a first portion and a second portion. The second portion...
US20110247234 DRYER WITH MONITORING DEVICE  
The invention provides a monitoring device (32) for a dryer (10) includes a means for sensing a physical parameter, such as temperature or strain, at a sensing locus within the dryer (10), for...
US20140368811 TOMOGRAPHIC IMAGING  
Briefly, embodiments of methods and/or systems for tomographic imaging are disclosed.
US20140307250 LIGHT COVER OR HOOD FOR LIVE OPTICAL FIBER IDENTIFIER TOOL  
A light hood for a fiber identifier tool that includes a head portion having interior photo detectors, a slot for receiving an optical fiber to be tested, and a clamp mechanism for urging the...
US20120176607 Testing of Optical Cable Using Optical Time Domain Reflectometry  
Methods for testing optical equipment are disclosed. One method includes connecting an optical time domain reflectometer to optical equipment to be tested, the optical equipment including at least...
US20140307251 LIVE OPTICAL FIBER IDENTIFIER TOOL  
A live fiber identifier tool includes a head portion having a slot. A cable containing a pair of optical fibers can be inserted in the slot and forced to bend inside the head portion when a...
US20150235759 HIGH VOLTAGE TRANSFORMER HAVING A SENSOR SYSTEM, METHOD FOR MONITORING PHYSICAL CHARACTERISTIC VARIABLES OF A HIGH VOLTAGE TRANSFORMER AND SENSOR SYSTEM FOR MONITORING PHYSICAL CHARACTERISTIC VARIABLES  
The invention relates to a high voltage transformer (6) having a sensor system (30) for monitoring physical characteristic variables. In particular, said sensor system has at least one sensor (1)...
US20130215417 SYSTEM AND METHOD FOR DETERMINING OPTICAL DISTRIBUTION NETWORK CONNECTIVITY  
A system and method for determining optical distribution network connectivity. In one embodiment, the system includes: (1) a transceiver configured to monitor at least one parameter and (2) a...
US20130194566 FIELD TESTER FOR TOPOLOGIES UTILIZING ARRAY CONNECTORS AND MULTI-WAVELENGTH FIELD TESTER FOR TOPOLOGIES UTILIZING ARRAY CONNECTORS  
A test instrument comprises plural first optical signal sources at a first wavelength and a distributor coupled to the plural first optical signal sources to supply the signals produced to a...
US20120033205 SENSOR HEAD AND OPTICAL SENSOR  
A sensor head for an optical pressure sensor according to the present invention includes: a light-emitting optical fiber for transmitting light emitted from a light source; a reflecting plate...
US20120033201 BIOLOGICAL OPTICAL MEASUREMENT INSTRUMENT AND METHOD FOR DETERMINING DAMAGE OF OPTICAL FIBERS  
A biological optical measurement instrument has a gain adjustment unit (40) configured to set the gain value according to the intensity of the passing light in the measurement data detected by the...
US20150077740 CABLE WITH OPTICAL FIBER FOR PRESTRESSED CONCRETE  
A reinforcing cable for a prestressed concrete structure is disclosed. The cable has an optical fiber entwined between the twisted wire ropes that form the cable. The optical fiber facilitates in...
US20120236294 Optical Fiber Fault Locator  
A method includes applying pulsed light to a first end of an optical fiber from an optical fault locator during a first distance test. The method includes determining an estimated distance to a...
US20130094015 TESTING HARDENED FIBER OPTIC CONNECTOR HOUSING  
A system includes a first assembly including a fiber optic connector. The system also includes a second assembly to which one end of a rigid arm is rotatingly affixed. Another end of the arm is...
US20140268113 SINGLE-FIBER NONCRITICAL-ALIGNMENT WAFER-SCALE OPTICAL TESTING  
A method of determining a parameter of a wafer is disclosed. Light is propagated through a waveguide disposed in the wafer. A first measurement of optical power is obtained at a first optical tap...
US20120307235 OPTICAL CABLE MEASUREMENT EQUIPMENT WITH FUNCTION OF OPERATING GUIDANCE  
An optical cable measurement equipment with function of operating guidance includes a circuit board, a central processing unit (CPU), a measurement module, an output interface, an input interface...
US20110096323 OPTICAL-FIBER CONNECTOR WITH ACCURATE MEASURING REFERENCE  
An optical-fiber connector includes an insulative main body having a pair of optical components extending forwardly therefrom. Each optical component defines at least one lens and a guiding post...
US20150062564 TESTING PERFORMANCE OF OPTICAL FIBERS IN THE FIELD  
Checking continuity along an optical fiber includes mounting an inspection attachment member to a smart phone; inserting a first end of the optical fiber into a receiving arrangement of the...
US20130021597 CABLE IDENTIFICATION  
A storage area network cable apparatus can include a cable, an identification adaptor disposed in the cable, an illuminator disposed in the identification adaptor, an endpoint adaptor disposed at...
US20110277552 Measuring Distributed Polarization Crosstalk in Polarization Maintaining Fiber and Optical Birefringent Material  
Techniques and devices for measuring the distribution of polarization crosstalk in birefringence optical media including polarization maintaining fiber based on suppressing the number and...
US20100315621 PHASE MODULATOR, PHASE MODULATOR ASSEMBLY, AND PHOTOSENSOR  
The present invention provides a photosensor that uses a phase modulation technique for optical detection and conducts a highly accurate measurement. The photosensor uses a phase change difference...
US20150138539 METHOD OF ESTIMATING A REFLECTION PROFILE OF AN OPTICAL CHANNEL  
Proposed is a method of estimating a reflection profile of an optical channel. The method comprises different steps. A measured reflection profile of the optical channel is provided. One or more...
US20150062563 OPTICAL TIME DOMAIN REFLECTOMETER WITH HIGH RESOLUTION AND HIGH SENSITIVITY  
An optical time domain reflectometer (OTDR) system with an integrated high speed optical modulator is capable of operating at a speed similar to the OTDR pulse width to improve the measurement...
US20120274928 METHOD OF MEASURING CUTOFF WAVELENGTH  
A method for accurately measuring the cutoff wavelength of a high order mode of an optical fiber includes a first step of measuring power spectrum P1(λ) of light output from a light source; a...
US20140198311 BI-DIRECTIONAL MULTI-PULSEWIDTH OPTICAL TIME-DOMAIN REFLECTOMETER  
There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link. The method comprises: performing a plurality of forward-direction light acquisitions from...
US20140146312 OPTICAL REFLECTOMETER WITH LOSS AND/OR REFLECTANCE PROFILE VIEW  
There is provided an optical reflectometric method and system for characterizing an optical fiber link, wherein events in the fiber optic link under test are identified and values of parameters...
US20120140208 GUIDED-MODE RESONANCE SENSORS EMPLOYING ANGULAR, SPECTRAL, MODAL, AND POLARIZATION DIVERSITY FOR HIGH-PRECISION SENSING IN COMPACT FORMATS  
A guided mode resonance (GMR) sensor assembly and system are provided. The GMR sensor includes a waveguide structure configured for operation at or near one or more leaky modes, a receiver for...
US20140168638 Measuring Operational Parameters in an ESP Seal with Fiber Optic Sensors  
A seal section for use in a wellbore electrical submersible pump and includes an optic fiber detection arrangement wherein one or more optic fiber sensors is used to detect an operational...
US20140104599 METHOD OF IMPROVING PERFORMANCE OF OPTICAL TIME DOMAIN REFLECTOMETER (OTDR)  
A method of improving the performance of an optical time domain reflectometer (OTDR) is provided. The method according to an embodiment of the present invention can increase accuracy of a distance...
US20140111794 SYSTEM AND/OR METHOD FOR MEASURING WAVEGUIDE MODES  
Subject matter disclosed herein relates to measuring modes of a waveguide.
US20150177469 FIBER-OPTIC CONNECTOR MATING ASSEMBLY FOR OPTICAL TEST INSTRUMENTS  
There is provided a mating assembly for mating a fiber-optic termination comprising a fiber-optic ferrule to an optical test instrument. The mating assembly comprises: a holding body having...
US20090310627 LASER FOR PROVIDING PULSED LIGHT AND REFLECTOMETRIC APPARATUS INCORPORATING SUCH A LASER  
A laser for generating laser light pulses comprises a cavity containing an active optical gain medium (102) and a spectral filtering device (104), a delay device (110) for delaying light by a...
US20150253217 In-Service Optical Time Domain Reflectometry Utilizing Raman Pump Source  
An arrangement for providing real-time, in-service OTDR measurements in an optical communication system utilizing distributed Raman amplification. One or more of the laser diodes used to provide...
US20150177097 FERRULE-CORE CONCENTRICITY MEASUREMENT SYSTEMS AND METHODS  
Systems and methods of measuring ferrule-core concentricity for an optical fiber held by a ferrule are disclosed. The method includes: generating ferrule distance data by measuring distances to a...
US20140092381 PORTABLE OPTICAL FIBER TEST SET CONTROLLABLE THROUGH WIRELESS MOBILE DEVICE  
A portable optical fiber test set controllable through a wireless mobile device includes: a portable optical fiber tester, which has a communication interface and can test an optical fiber; and a...
US20120274927 DISTRIBUTED BRILLOUIN SENSING SYSTEMS AND METHODS USING FEW-MODE SENSING OPTICAL FIBER  
Some embodiments of a distributed Brillouin optical fiber sensing system employs a sensing optical fiber that supports two or more (i.e., few) guided modes. Pump light supported by one of the...
US20150063761 TEST SYSTEM FOR CHECKING A SPLICE CONNECTION BETWEEN A FIBER OPTIC CONNECTOR AND ONE OR MORE OPTICAL FIBERS  
A test system for checking a splice connection between a fiber optic connector and one or more optical fibers includes a body, an adapter movable relative to the body between a first position and...
US20120250008 MEASURING METHOD FOR CROSSTALK BETWEEN CORES IN MULTI-CORE OPTICAL FIBER  
The present invention obtains a statistical distribution of inter-core crosstalk by measuring the inter-core crosstalk of a multi-core optical fiber while changing the wavelength of incident light...
US20120161446 GLOBAL WIND FARM SURVEILLANCE SYSTEMS USING FIBER OPTIC SENSORS  
Methods and apparatus for measuring a parameter (e.g., temperature, pressure, strain, or vibration) of at least a portion of a wind turbine generator using distributed sensing with optical fiber...
US20130070237 Method and Metric for Selecting and Designing Multimode Fiber for Improved Performance  
A new metric applicable to the characterization and design of multimode fiber (MMF) is described. The metric is derived from a Differential Mode Delay (DMD) measurement and when used in...
US20100315620 Method and Metric for Selecting and Designing Multimode Fiber for Improved Performance  
A new metric applicable to the characterization and design of multimode fiber (MMF) is described. The metric is derived from a Differential Mode Delay (DMD) measurement and when used in...
US20120274926 Distributed Brillouin Sensing Systems and Methods Using Few-Mode Sensing Optical Fiber  
A distributed Brillouin optical fiber sensing system employs a sensing optical fiber that supports two or more (i.e., few) guided modes. Pump light supported by one of the guided modes is used to...
US20120325001 OPTICAL SENSOR SYSTEMS AND METHODS  
Optical sensors and sensing methods are provided. A particular method includes applying light to a first end of an optical fiber. Light reflected by at least one of a first photonic crystal sensor...
US20110122401 Method and Apparatus For Verifying the Termination Quality of an Optical Fiber Interface in a Fiber Optic Cable Connector  
A method and apparatus for verifying the termination quality of an optical fiber interface in a fiber optic connector is provided. The test apparatus generally comprises a light source providing...
US20110235023 RETURN LOSS MEASUREMENT SYSTEM  
A method may include injecting a test signal having a first optical launch power into a device under test via an optical splitter. The optical splitter includes at least two upstream ports and a...
US20140071436 DETERMINING A POLARIZATION-RELATED CHARACTERISTIC OF AN OPTICAL LINK  
A polarization-related characteristic of an optical path is determined from a predetermined function of the mean-square of a plurality of differences between polarization-analyzed optical power...
US20140085626 OPTICAL FIBER GRATING TRACKER AND METHOD FOR DETECTING OPTICAL FIBER LINE FAULT  
An optical fiber grating tracker includes a first stub, a second stub, an optical fiber grating, and a connection part. The connection part has a through hole. The first stub is inserted into one...
US20110205532 INSPECTION METHOD FOR INSPECTING CORROSION UNDER INSULATION  
The present invention realizes an inspection method for inspecting corrosion under insulation. This inspection method according to the present invention makes it possible to inspect corrosion...
US20080094615 OPTICAL PHASE DOMAIN REFLECTOMETER  
An apparatus to measure optical characteristics of an optical medium may include an optical source to generate an optical square wave for transmission into the optical medium and an optical...