METHOD AND DEVICE FOR TESTING OPTICAL LINK BASED ON OPTICAL FREQUENCY DOMAIN REFLECTOMETRY

OPTICAL FREQUENCY DOMAIN REFLECTOMETER MODULE, OPTICAL FREQUENCY DOMAIN REFLECTOMETER SYSTEM AND METHOD OF OPERATING AN OPTICAL FREQUENCY DOMAIN REFLECTOMETER SYSTEM

METHOD AND SYSTEM FOR EXTRACTING INFORMATION FROM AN OPTICAL SIGNAL

CALCULATING DISTRIBUTED TWIST OF A MULTI-FIBER 3D SHAPE SENSOR BUNDLE (MFB) USING OPTICAL FREQUENCY DOMAIN REFLECTOMETRY (OFDR) PHASE INTERROGATION DATA

Calculating distributed twist of a multi-fiber 3D shape sensor bundle (MFB) using optical frequency domain reflectometry (OFDR) phase interrogation data

SYSTEM AND METHOD FOR TESTING OPTICAL DEVICES USING AN OPTICAL TIME DOMAIN REFLECTOMETER (OTDR) DEVICE

Technique for analyzing a spectrum of backscattered light in an optical fiber

Methods and apparatus to determine a shape of an optical fiber sensor

DEVICES AND METHODS FOR MEASURING THE AMOUNT OF FREQUENCY MODULATION

TECHNIQUES FOR DETERMINING DISTANCE BETWEEN A FIBER END AND A TARGET

Systems for Mechanical Static and Dynamic Characterization of Structures and Adjustment of Radio Frequency Aperture and Transmission

System and method for performing in-service optical network certification

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

METHOD AND SYSTEM FOR EXTRACTING INFORMATION FROM AN OPTICAL SIGNAL

Device for measuring optical frequency reflection and measurement method thereof

Apparatus and method for performing time domain reflectormetry

System and method for performing in-service optical network certification

Tunable light source for optical fiber proximity and testing

Process and device for measurement of physical quantity based on Rayleigh backscattering

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

Multi-spectral feature sensing techniques and sensors for determining a phase shift by comparing a measured narrowband response to a known wideband response

Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of locations

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

Device for determining a layer thickness in a multilayer film

Brillouin and rayleigh distributed sensor

System and method for performing in-service optical network certification

Optical fiber monitoring method, and optical fiber monitoring system

Registering measured optical fiber interferometric data with reference optical fiber interferometric data

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

Method and apparatus for detecting a disturbance in a medium

System and method for performing in-service optical network certification

Method of making a distributed optical fiber sensor having enhanced Rayleigh scattering and enhanced temperature stability, and monitoring systems employing same

Single-ended probing through a multimode fiber having distributed reflectors

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

Nonlinearity measuring method and nonlinearity measuring device

System and method for performing in-service optical network certification

Interferometric alignment of optical multicore fibers to be connected

Method and apparatus for detecting a disturbance in a medium using threshold based detection

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

System and method for performing in-service optical network certification

Single-shot network analyzer (SINA)

HIGH TEMPERATURE FIBER OPTIC CABLE WITH STRAIN RELIEF AND PROTECTION FOR HARSH ENVIRONMENTS

Optical fiber characteristics measuring apparatus and optical fiber characteristics measuring method

Method of making a distributed optical fiber sensor having enhanced Rayleigh scattering and enhanced temperature stability, and monitoring systems employing same

Methods and systems for correcting for nonlinear twist response in optical shape sensing with spun multicore fibers

System and method for performing in-service optical network certification

Method and apparatus for motion compensation in interferometric sensing systems

Brillouin and rayleigh distributed sensor

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

Apparatus and method for generating 3-D data for an anatomical target using optical fiber shape sensing

Sensitive optical fiber shape sensing based on shape-related optical polarization evolution

Optical fiber and method and apparatus for accurate fiber optic sensing under multiple stimuli

Interferometric alignment of optical multicore fibers to be connected

System and method for optical frequency domain reflectometer

Non-linear frequency scan optical frequency-domain reflectometry having a processor to estimate a backscattering profile of an optical fiber by applying a predefined function to a beat signal

Dissimilar cores in multicore optical fiber for strain and temperature separation

AN OVERLAPPED CHIRPED FIBER BRAGG GRATING SENSING FIBER AND METHODS AND APPARATUS FOR PARAMETER MEASUREMENT USING SAME

Method and apparatus for detecting a disturbance in a medium

Devices and methods for characterization of distributed fiber bend and stress

Registering measured optical fiber interferometric data with reference optical fiber interferometric data

Resonating measurement system using improved resolution

Spectrally efficient optical frequency-domain reflectometry using I/Q detection

Method and Apparatus for Measuring the Local Birefringence along an Optical Waveguide

Distributed fiber bend and stress measurement for determining optical fiber reliability by multi-wavelength optical reflectometry

Brillouin and rayleigh distributed sensor

Optical fiber characteristic measuring device

FIBER OPTIC ARRAY HAVING DENSELY SPACED, WEAK REFLECTORS

Methods and apparatus for measurement of modal characteristics of multimode fiber using Rayleigh scatter

Optical pulse compression reflectometer

OFDR device and OFDR method

Kerr phase-interrogator for sensing and signal processing applications

Arrayed wave division multiplexing to improve spatial resolution of IOFDR fiber Bragg sensing system

Distributed multi-channel coherent optical fiber sensing system

System and method for performing in-service optical fiber network certification

Integrated optics reflectometer

Methods and apparatus segmented calibration of a sensing optical fiber

Devices and methods for characterization of distributed fiber bend and stress

Overlapped chirped fiber Bragg grating sensing fiber and methods and apparatus for parameter measurement using same

Arrayed wave division multiplex to extend range of IOFDR fiber bragg sensing system

OFDR system for localized vibration detection

Method and apparatus for measuring operational gas turbine engine housing displacement and temperature by a distributed fiber optic sensing system utilizing optical frequency domain reflectometry

Optical frequency domain reflectometry (OFDR) system

Method and system for measuring an optical loss value of an optical fiber link

Method and apparatus for acoustic sensing using multiple optical pulses

Monitoring of a passive optical network (PON)

Distributed disturbance sensing device and the related demodulation method based on polarization sensitive optical frequency domain reflectometry

Fiber optic network interrogation tool for combined swept-heterodyne optical spectrum analysis and optical frequency-domain reflectometry

Fast brillouin optical time domain analysis for dynamic sensing

System and method for performing in-service optical network certification

OPTICAL METHOD AND DEVICE FOR A SPATIALLY RESOLVED MEASUREMENT OF MECHANICAL PARAMETERS, IN PARTICULAR MECHANICAL VIBRATIONS BY MEANS OF GLASS FIBERS

Apparatus and methods for uniform frequency sample clocking

System and method for effective isolation of an interferometer

Combined swept-carrier and swept-modulation frequency optical frequency domain reflectometry

Fiber identification using optical frequency-domain reflectometer

Method of operating an optical transmission system, optical transmitter, and optical receiver

Optical position and/or shape sensing

Optical fibre circuit monitoring system and monitoring device included in this system

Compensating for time varying phase changes in interferometric measurements

Optical amplifier

Method and apparatus for acoustic sensing using multiple optical pulses

System and method for correcting sampling errors associated with radiation source tuning rate fluctuations in swept-wavelength interferometry

Optical reflectometry and optical reflectometer

Scattered light measuring device

Microwave photonic frequency domain reflectometer

Apparatus for characterizing fiber Bragg gratings

Compensating for time varying phase changes in interferometric measurements

Method and a system for determining a physical property as a function of position

Sensing a disturbance

Apparatus and methods for uniform frequency sample clocking

Evaluating the position of a disturbance

System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber

Apparatus for characterizing fiber bragg gratings

Method and apparatus for acoustic sensing using multiple optical pulses

Optical reflectometry using integrated VCSEL photodiode chip

Systems and methods for measuring signal phase shift caused by optical fibers

High resolution interferometric optical frequency domain reflectometry (OFDR) beyond the laser coherence length

Polarization diversity detection without a polarizing beam splitter

Distributed strain and temperature discrimination in polarization maintaining fiber

Apparatus and method for identification of optical cable

Natural fiber span reflectometer providing a spread spectrum virtual sensing array capability

System and method for monitoring a well

System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber

Method of characterizing fiber Bragg gratings using iterative processing

Optical reflectometry analysis with a time-adjustment of partial responses

Detecting different spectral components of an optical signal by means of an optical shutter

Apparatus for measuring differential mode delay of multimode optical fiber

Calculation of birefringence in a waveguide based on Rayleigh scatter

Polarization diversity detection without a polarizing beam splitter

Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement

Natural fiber span reflectometer providing a virtual differential signal sensing array capability

Natural fiber span reflectometer providing a virtual phase signal sensing array capability

Identifying optical fiber segments and determining characteristics of an optical device under test based on fiber segment scatter pattern data

Wavelength dispersion probing system

Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement