OPTICAL FIBER TESTING USING POLARIZATION OPTICAL TIME DOMAIN REFLECTOMETRY

SYSTEM AND METHOD FOR CABLE IDENTIFICATION

OPTICAL FIBER SENSOR AND CHANGE DETECTION METHOD

Fiber span characterization utilizing paired optical time domain reflectometers

System and method for cable identification

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

Method of re-connecting optical fibers and system

Estimating nonlinear phase shift in a multi-span fiber-optic link using a coherent receiver

Fiber span characterization utilizing paired optical time domain reflectometers

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

Estimating nonlinear phase shift in a multi-span fiber-optic link using a coherent receiver

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

Integrated reflectometer or ellipsometer

Brillouin and rayleigh distributed sensor

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

Optical fiber array and optical measurement device

Single OTDR measurement for a plurality of fibers

Optical line testing device using optical signals having continuous waveform to identify fault location in optical line

Ellipsometry device and ellipsometry method

Brillouin and rayleigh distributed sensor

Location measurement apparatus, light modulation converter, and light variation location measurement method

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

Optical connector polarity and loss measurement using an integrating sphere-equipped optical measurement device

Single-end optical fiber transfer matrix measurement using spatial pilot

Measurement system and method to interrogate birefringent optical sensors with a frequency swept source based interrogator

Optical line testing device using wavelength tunable laser to measure cutting position of optical line

Dissimilar cores in multicore optical fiber for strain and temperature separation

Devices and methods for characterization of distributed fiber bend and stress

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

System and method associated with a photonic integrated circuit

Method for distributedly measuring polarization transmission matrices of optical fiber and system thereof

Optical fiber characteristic measuring device

Optical fiber property measuring device and optical fiber property measuring method

Kerr phase-interrogator for sensing and signal processing applications

Distributed multi-channel coherent optical fiber sensing system

OTDR signal injection for multi-band optical power balancing

Determining a polarization-related characteristic of an optical link

Devices and methods for characterization of distributed fiber bend and stress

Prism-coupling systems and methods for characterizing large depth-of-layer waveguides

Optical frequency domain reflectometry (OFDR) system

Drop discriminating network alarm system utilizing a single sensing fiber

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

Polarization diversity detector with birefringent diversity element

Method and apparatus for measuring fiber twist by polarization tracking

Distributed fibre optic sensing for event detection

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

Method for monitoring and measuring optical properties of device in polarization maintaining fibers by using reference fiber bragg grating and fiber components manufactured thereby

Optical-fiber-characteristic measuring device and optical-fiber-characteristic measuring method

Bidirectional optical module and optical time domain reflectometer

Method and apparatus for measuring fiber twist by polarization tracking

Detection system and optical fiber for use in such system

Method and Apparatus for Determining Differential Group Delay and Polarization Mode Dispersion

Polarization optical time domain reflectometer and method of determining PMD

Distributed backscattering

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

Polarization-sensitive optical time domain reflectometer and method for determining PMD

Optical fiber birefringence measurement method and measurement device, and optical fiber polarization mode dispersion measurement method and optical fiber

Polarization diversity detection without a polarizing beam splitter

Method for characterizing an optical fiber link

Single polarization fiber and method of evaluating fiber cutoff wavelengths using optical time domain reflectometry

Method for determining spin characteristic parameters in spun optical fibers

Method of evaluating fiber PMD using POTDR trace

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

Method of evaluating fiber PMD using composite POTDR trace

Intrusion detection system for use on single mode optical fiber using a storage register for data

Polarized lightwave reflectometry method (POTDR)

Calculation of birefringence in a waveguide based on Rayleigh scatter

Optical fiber and method of measuring polarization mode dispersion of optical fiber

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

Optical fiber polarization mode dispersion measurement method and measurement device

Simple high efficiency optical coherence domain reflectometer design

Determination of optical properties of a device under test in both directions in transmission and in reflection

Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects

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

Apparatus and method for measuring characteristics of optical fibers

Fiber rotator system for scalable and automated alignment of multiple polarization maintaining fibers