公开(公告)号：US20180076890A1

公开(公告)日：2018-03-15

申请号：US15822339

申请日：2017-11-27

Applicant: EXFO INC.

Inventor： Bernard RUCHET ,  Mario L'HEUREUX ,  Daniel GARIEPY ,  Etienne MORIN-DROUIN

IPC: H04B10/079 ,  H04J14/02 ,  H04B10/27 ,  H04B10/67 ,  H04B10/077

CPC classification number: H04J14/02 ,  H04B10/07955 ,  H04J14/0221

Abstract: A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. The device includes an upstream wavelength analyzer receiving upstream light extracted from the optical transmission path and configured to determine an upstream spectral characteristic of the extracted upstream light. The device also includes a downstream filter assembly receiving downstream light extracted from the optical transmission path and configured to spectrally split the extracted downstream light into a plurality of downstream signals, one of which corresponding to a downstream signal of interest. The device further includes a processing unit configured to identify, based on the upstream spectral characteristic, the downstream signal of interest among the downstream filtered signals, and a downstream optical power meter assembly coupled to the downstream filter assembly and configured to measure an optical power parameter of the downstream signal of interest.

公开(公告)号：US20190245641A1

公开(公告)日：2019-08-08

申请号：US16388367

申请日：2019-04-18

Applicant: EXFO Inc.

Inventor： Bernard RUCHET ,  Mario L'HEUREUX ,  Daniel GARIEPY ,  Etienne MORIN-DROUIN

IPC: H04J14/02 ,  H04B10/079

CPC classification number: H04J14/02 ,  H04B10/07955 ,  H04J14/0221

Abstract: A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. An upstream wavelength analyzer receives upstream light extracted from the optical transmission path and is configured to determine an upstream spectral characteristic of the extracted upstream light. A downstream optical power meter assembly receives downstream light extracted from the optical transmission path and is configured to measure an optical power parameter of a downstream signal. A processing unit is configured to determine, based on the upstream spectral characteristic, at least one pass/fail threshold associated with the measured optical power parameter of the downstream signal.