公开(公告)号：US20190277724A1

公开(公告)日：2019-09-12

申请号：US16024227

申请日：2018-06-29

Applicant: VIAVI SOLUTIONS INC.

Inventor： Robert Matthew ADAMS ,  Joshua PHILIPSON ,  Chris WAGNER ,  Grant TESSARO

IPC: G01M11/00

Abstract: A test instrument tests an optical component of a fiber optic network. The test instrument determines signal parameters describing pulses to be emitted by lasers of the test instrument to test the optical component, and directly modulates the lasers to repeatedly emit the pulses at different wavelengths on a single fiber optic cable in a time division multiplexing manner. The test instrument triggers powering measurements to coincide with the emitted pulses, and determines performance parameters of the optical component based on the triggered power measurements.

公开(公告)号：US20170082874A1

公开(公告)日：2017-03-23

申请号：US15167326

申请日：2016-05-27

Applicant: VIAVI SOLUTIONS INC.

Inventor： Chris WAGNER ,  Grant TESSARO

IPC: G02F1/01 ,  G01J3/28 ,  H04B10/079 ,  H04B10/516 ,  G02F1/133 ,  H04B10/40

CPC classification number: G02F1/0121 ,  G01J1/0219 ,  G01J1/0228 ,  G01J1/0418 ,  G01J1/26 ,  G01J1/4257 ,  G01J3/28 ,  G01J2001/4247 ,  G01J2003/2859 ,  G02F1/13306 ,  H04B10/07955 ,  H04B10/40 ,  H04B10/516

Abstract: According to an example, a plurality of pixels of a modulator upon which an input light beam impinges may be modulated to apply a first asymmetrical attenuation pattern on the input light beam and to direct a first attenuated light beam from the modulator and a first power level of the first attenuated light beam may be measured. The plurality of pixels may be modulated to apply a second asymmetrical attenuation pattern on the input light beam and to direct a second attenuated light beam from the modulator, and a second power level of the second attenuated light beam may be measured. A difference between the first power level and the second power level may be calculated and a modified peak frequency for an attenuated light beam from the calculated difference may be calculated.

公开(公告)号：US20210003472A1

公开(公告)日：2021-01-07

申请号：US17021721

申请日：2020-09-15

Applicant: VIAVI SOLUTIONS INC.

Inventor： Robert Matthew ADAMS ,  Joshua PHILIPSON ,  Chris WAGNER ,  Grant TESSARO

IPC: G01M11/00

Abstract: A test instrument tests an optical component of a fiber optic network. The test instrument determines signal parameters describing pulses to be emitted by lasers of the test instrument to test the optical component, and directly modulates the lasers to repeatedly emit the pulses at different wavelengths on a single fiber optic cable in a time division multiplexing manner. The test instrument triggers powering measurements to coincide with the emitted pulses, and determines performance parameters of the optical component based on the triggered power measurements.

公开(公告)号：US20170219853A1

公开(公告)日：2017-08-03

申请号：US15011189

申请日：2016-01-29

Applicant: VIAVI SOLUTIONS INC.

Inventor： Joshua PHILIPSON ,  Chris WAGNER ,  Grant TESSARO ,  Robert Matthew ADAMS

IPC: G02F1/01 ,  G01B11/27 ,  G02B6/27

Abstract: According to an example, a polarization control system is to manipulate polarization manipulators to output light that achieves a trajectory on a Poincaré sphere that tracks a known trajectory of a polarizer on the Poincaré sphere, in which the trajectory of the output light enables definition of a reference polarization state of the output light. The polarization control system may also manipulate an output polarization manipulator to set the output light to a predefined polarization state based upon the reference polarization state.