Gang He

ALL-OPTICAL OPEN CABLE OSNR MEASUREMENT

METHODS AND SYSTEMS FOR CHARACTERIZATION OF POLARIZATION-DEPENDENT LOSS OR GAIN IN OPTICAL LINKS AND COMPONENTS

Optical-fiber device for one-cord reference optical power loss measurement

Transceiver agnostic GOSNR measurement

Extracting data traffic from an optical communication fiber

Optical loss testing of multi-fiber array cables

Noise-free measurement of the spectral shape of a modulated signal using spectral correlation

Method and system for measuring an optical power attenuation value of a multimode device under test, receive device and computer-readable memory

METHOD AND SYSTEM FOR MEASURING AN OPTICAL POWER ATTENUATION VALUE OF A MULTIMODE DEVICE UNDER TEST, RECEIVE DEVICE AND COMPUTER-READABLE MEMORY

Optical fiber modal distribution conditioner

In-band noise determination on optical communication signals

In-band noise and/or spectral deformation measurement on polarization-multiplexed signals

Signal deformation measurement on polarization-multiplexed signals

Characterization of linear crosstalk on multiplexed optical signals

Characterization of non-ASE noise on optical signals

Method and system for determining in-band optical noise

Reference-based in-band OSNR measurement on polarization-multiplexed signals

In-Band Optical Noise Measurement Using Differential Polarization Response

In-band optical noise measurement using differential polarization response

In-band optical signal to noise ratio determination method and system

Optical waveguide rotator mechanism, birefringence-inducing element and polarization control devices employing either or both and methods of using same

Estimating loss of mechanical splices interconnecting optical fibers, and connector installation tool

Method and apparatus for extracting light from an optical waveguide

Widely-tunable laser apparatus

Optical attentuator system