MULTI-PATH, SMART OPTICAL TIME-DOMAIN REFLECTOMETER

OTDR METHOD FOR DETECTING HOLLOW-CORE FIBERS

APPARATUS AND METHODS FOR MONITORING OPTICAL FIBER SYSTEM INTEGRITY

MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

SYSTEMS AND METHODS FOR AUTOMATIC TEST AND TURN-UP OF OPTICAL TRANSPORT SYSTEMS

DUAL-END LOOPBACK-BASED MULTI-FIBER CABLE MEASUREMENT

OPTICAL TIME-DOMAIN REFLECTOMETER AND PROGRAM

Optical Time Domain Reflectometry (OTDR) Device And Methods

OPTICAL FIBER TEST EQUIPMENT AND OPTICAL FIBER TEST METHOD

SYSTEM AND METHOD FOR CABLE IDENTIFICATION

SYSTEMS, METHODS AND ASSEMBLIES FOR SINGLE INPUT SHAPE SENSING

OPTICAL FIBER CHARACTERISTIC MEASUREMENT APPARATUS AND OPTICAL FIBER CHARACTERISTIC MEASUREMENT METHOD

CONNECTION LOSS DIFFERENCE MEASUREMENT METHOD, EQUIPMENT AND PROGRAM

Method and system for detecting an improper protection in an optical communication network

SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING DEVICE

OPTICAL FIBER TEST METHOD AND WRAPPING OPTICAL FIBER DEVICE

Pluggable OTDR With Integrated BOSA

METHOD AND DEVICE FOR SUPPRESSING INTERFERENCE FADING NOISE OF OPTICAL FIBRE SENSING DATA

Optical time-domain reflectometer (OTDR) including channel checker

MONITORING OPTICAL FIBERS WITH FALSE ALARM SUPPRESSION USING DISSIMILAR ALGORITHMS

Optical Fiber Measurement System

System and method for cable identification

OPTICAL PATH IDENTIFICATION DEVICE, OPTICAL PATH IDENTIFICATION METHOD, AND STORAGE MEDIUM FOR OPTICAL PATH IDENTIFICATION PROGRAM

Fiber optic cable location system and method

METHOD, DEVICE AND SYSTEM FOR RANGE FINDING

EQUIPMENT AND METHODS FOR EVALUATING THE CHARACTERISTICS OF SPATIAL MULTIPLEX OPTICAL TRANSMISSION LINES

EVENT DETECTION DEVICE AND EVENT DETECTION METHOD

AUTOMATIC FIBER LOSS DETECTION USING COHERENT OTDR

WORKING-STATE CABLE PROTECTION MONITORING SYSTEM, WORKING-STATE CABLE PROTECTION MONITORING METHOD, AND STORAGE MEDIUM HAVING STORED THEREIN WORKING-STATE CABLE PROTECTION MONITORING PROGRAM

OPTICAL FIBER CHARACTERISTIC MEASUREMENT DEVICE, OPTICAL FIBER CHARACTERISTIC MEASUREMENT PROGRAM, AND OPTICAL FIBER CHARACTERISTIC MEASUREMENT METHOD

Dual-end loopback-based multi-fiber cable measurement

MEDICAL LIGHT SOURCE DEVICE AND MEDICAL OBSERVATION SYSTEM

Apparatuses integrating separate WDM modules and OTDR/switch modules

Fast fiber transient locating systems and methods

DEVICE, METHOD AND PROGRAM FOR DETECTING MICROBEND

MULTI-PATH, SMART OPTICAL TIME-DOMAIN REFLECTOMETER

Methods for determining sensor channel location in distributed sensing of fiber-optic cables

Techniques and apparatus for improved spatial resolution for locating anomalies in optical fiber

Optical time-domain reflectometer (OTDR) including channel checker

Processing device, processing method, and recording medium

Automatic optical time-domain reflectometer (OTDR)-based testing of device under test

High-speed signal subsystem testing system

Device for pulling out optical fiber, method for pulling out optical fiber, and method for inspecting optical fiber

Suppressed out-of-band level for increasing loss margin and stable ABC operation of coded DFOS system

Multi-path, smart optical time-domain reflectometer

Phase-distortion mitigation for an optical vector network analyzer

Device for measuring optical frequency reflection and measurement method thereof

Distributed pulsed light amplifier based on optical fiber parameter amplification, and amplification and performance characterization method

Polarity receive module

Automatic Optical Time-Domain Reflectometer (OTDR)-based testing of device under test

Fiber optic cable location system and method

Distributed Brillouin laser sensor

Apparatus and method for performing time domain reflectormetry

Techniques and apparatus for improved spatial resolution for locating anomalies in optical fiber

Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method

Optical fiber testing method and optical fiber testing device

Optical device loss measurement apparatus, and optical device loss measurement method

Distributed acoustic sensing using dynamic range suppression

Optical pulse reflectometer and optical pulse reflectometry

Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method

Constant amplitude coded DFOS using out-of-band signaling

Systems and methods for determining fiber cable geographic locations

Optical time-domain reflectometer device including combined trace display

Optical frequency multiplexing coherent OTDR, testing method, signal processing device, and program

OTDR calibration method using multiple levels of internal optical fiber backscatter

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

Optical fiber monitoring method, and optical fiber monitoring system

Duplicate OTDR measurement detection

Monitorable hollow core optical fiber

Optical time-domain reflectometer interoperable trunk switch

Optical fiber degradation monitoring by distributed temperature sensing

Amplifier dynamics compensation for brillouin optical time-domain reflectometry

Distributed sensing over optical fiber carrying live, high-speed data

Method and apparatus for detecting a disturbance in a medium

Use of band-pass filters in supervisory signal paths of an optical transport system

Optical time-domain reflectometer device including combined trace display

Optical test instrument with removable cartridge

Systems and methods for monitoring and analyzing broadband over power line data

Optical fiber sensor device and optical fiber sensor system

Nonlinearity measuring method and nonlinearity measuring device

Detection of gainers and exaggerated losses in unidirectional OTDR traces

Fronthaul remote access and monitoring systems and methods to test fiber optic infrastructure and RF spectrum

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

Method and system for optical fiber sensing

Measurement method, measurement device, and non-transitory recording medium

Optical time-domain reflectometer interoperable trunk switch

Support structure for an optical time domain reflectometer and an optical time domain reflectometer

Optical time-domain reflectometer device including combined trace display

Optical time domain reflectometer with high resolution and high sensitivity

Optical time-domain reflectometer device including combined trace display

Temperature or strain distribution sensor comprising a coherent receiver to determine a temperature or a strain associated with a device under test

Single-end optical fiber transfer matrix measurement using spatial pilot

SYSTEMS AND METHODS FOR TESTING OPTICAL FIBER

Distributed fiber sensors and systems employing hybridcore optical fibers

Device and specification method

Temperature or strain distribution sensor comprising a coherent receiver to determine a temperature or a strain associated with a device under test

Two-port high isolation filter

Raman amplifier system and method with integrated optical time domain reflectometer

Method and apparatus for detecting a disturbance in a medium

Range extension for optical fiber sensing systems

Edge propagating optical time domain reflectometer and method of using the same

Optical time domain reflectometer and display method of optical time domain reflectometer

Method and system for optical fiber sensing

Fiber measurement with pulse shaping

Measurements of strain, stress and temperature by using 1-dimensional and 2-dimensional distributed fiber-optic sensors based on sensing by polarization maintaining fiber of distributed polarization crosstalk distribution

Optical pulse compression reflectometer

Distributed multi-channel coherent optical fiber sensing system

OTDR signal injection for multi-band optical power balancing

Distributed sensing optical fiber multi-objective multi-degree-of-freedom static and dynamic test device and method

Optical fiber fault locator

Live monitoring of raman and fiber degradation in DWDM networks using in-service OTDR

Optical pulse tester

Zeroing method and zeroing device for optical time-domain reflectometer

Edge propagating optical time domain reflectometer and method of using the same

Raman amplifier system and method with integrated optical time domain reflectometer

SYSTEM AND METHOD FOR OPTICALLY READING A SENSOR ARRAY

Bi-directional multi-pulsewidth optical time-domain reflectometer

Optical fiber temperature distribution measuring device

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

Optical fiber defect detection

Long distance optical fiber sensing system and method

SENSING SYSTEM AND METHODS FOR DISTRIBUTED BRILLOUIN SENSING

Method and apparatus for acoustic sensing using multiple optical pulses

Testing performance of optical fibers in the field

Optical time domain reflectometer with high resolution and high sensitivity

Calibration of optical time domain reflectometry optical loss measurement in optical fibers having potentially dissimilar light backscattering efficiencies

Fiber sensing system based on a bragg grating and optical time domain reflectometry

Integrated optics reflectometer

Measuring brillouin backscatter from an optical fibre using digitisation

OTDR mapping method

Optical fiber mechanical splice termination and test apparatus and methods

Optical fiber fault locator

Bi-directional multi-pulsewidth optical time-domain reflectometer

Long-distance polarization and phase-sensitive optical time-domain reflectometry based on random laser amplification

System and method for measuring fiber temperature using OTDR measurements

Optical fiber line characteristic analysis apparatus and analysis method thereof

Method of measuring multi-mode fiber bandwidth through accessing one fiber end

Raman amplifier system and method with integrated optical time domain reflectometer

Method and system for detecting fiber fault in passive optical network

Optical time domain reflectometer test signal modulation circuit, and passive optical network system and apparatus using same

Method for checking the correct installation of a bend-insensitive optical cable and optical cable suitable for the method thereof

OTDR light reflection structure of optical sub-assembly for transceivers of PON system

Optical fiber fault locator

Method for locating fault of submarine cable, repeater, and communication system

Testing of optical cable using optical time domain reflectometry

System and method for measuring fiber temperatures using OTDR measurements

Optical pulse test apparatus and method of testing optical transmission path

Optical fibre test device

Distributed fibre optic sensing for event detection

Enhanced optical time-domain reflectometer resolution using depolarization of light source

Long distance optical fiber sensing system and method

Method of testing a passive optical element

Method and apparatus for acoustic sensing using multiple optical pulses

Mixer-based time domain reflectometer and method

Distributed vibration sensing system using multimode fiber

Sensing a disturbance

Method and apparatus for detecting a condition of an optical element

Determining a length of a carrier line deployed into a well based on an optical signal

Methods and systems for recognizing tamper events

Optical phase domain reflectometer

Method and apparatus for acoustic sensing using multiple optical pulses

Optical time domain reflectometry for two segment fiber optic systems having an optical amplifier therebetween

Method and system for adjusting the sensitivity of optical sensors

DISTORTION MEASURING APPARATUS, METHOD, PROGRAM, AND RECORDING MEDIUM

Fault detection in optical fibers

Optical time domain reflectometry system at different wavelengths

Optical reflectometry analysis with a time-adjustment of partial responses

Mixer-based time domain reflectometer and method

Fiber optic transceiver module having built-in test capability and associated method

Accuracy automated optical time domain reflectometry optical return loss measurements using a “Smart” Test Fiber Module

Mixer-based in-service time domain reflectometer apparatus and methods

Retractable optical fiber assembly

USB optical time domain reflectometer

Method of manufacturing a glass based material with defect removal

Optical time domain reflectometry

Visual fault detection for optical measurements

Optical time domain reflectometer and method of using the same

Method for determining the cut-off wavelength of an optical fibre as well as a device suitable for that purpose

Systems and methods for characterizing an optical fiber in a dense wavelength division multiplexing optical link

System and method for assisting in fiber optic splices

Systems and methods for monitoring and analyzing broadband over power line data

Fiber diagnosis system for point-to-point optical access networks

Optical time domain reflectometer calibration standard

Means to detect damage in composite material panels