公开(公告)号：US10574378B2

公开(公告)日：2020-02-25

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: H04B10/079 ,  H04J14/02

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.

公开(公告)号：US20160341904A1

公开(公告)日：2016-11-24

申请号：US15160398

申请日：2016-05-20

Applicant: EXFO Inc.

Inventor： Etienne Morin-Drouin ,  Robert Baribault

IPC: G02B6/36 ,  G01M11/00

CPC classification number: G02B6/3628 ,  G01M11/31 ,  G02B6/0006 ,  G02B6/385

Abstract: There is provided an adapter tip to be employed with an optical-fiber inspection microscope probe and an optical-fiber inspection microscope system suitable for imaging the optical-fiber endface of an angled-polished optical-fiber connector deeply recessed within a connector adapter. The adapter tip or microscope system comprises a relay lens system having at least a first relay lens which is disposed so as to directly receive light reflected from the optical-fiber endface during inspection, the lens axis of the first relay lens being offset relative to the optical-fiber endface so as to deviate light reflected from the optical-fiber endface towards the optical-fiber axis of the connector.

Abstract translation: 提供了一种用于光纤检查显微镜探针和光纤检查显微镜系统的适配器尖端，其适用于将凹入在连接器适配器内的倾斜抛光光纤连接器的光纤端面成像。 适配器尖端或显微镜系统包括具有至少第一中继透镜的中继透镜系统，该第一中继透镜被设置为在检查期间直接接收从光纤端面反射的光，第一中继透镜的透镜轴相对于 光纤端面，以将从光纤端面反射的光偏向连接器的光纤轴。

公开(公告)号：US10270554B2

公开(公告)日：2019-04-23

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: H04B17/00 ,  H04J14/02 ,  H04B10/079

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：US09880359B2

公开(公告)日：2018-01-30

申请号：US15160398

申请日：2016-05-20

Applicant: EXFO Inc.

Inventor： Etienne Morin-Drouin ,  Robert Baribault

IPC: G01N21/00 ,  G02B6/36 ,  G01M11/00 ,  G02B6/38 ,  F21V8/00

CPC classification number: G02B6/3628 ,  G01M11/31 ,  G02B6/0006 ,  G02B6/385

Abstract: There is provided an adapter tip to be employed with an optical-fiber inspection microscope probe and an optical-fiber inspection microscope system suitable for imaging the optical-fiber endface of an angled-polished optical-fiber connector deeply recessed within a connector adapter. The adapter tip or microscope system comprises a relay lens system having at least a first relay lens which is disposed so as to directly receive light reflected from the optical-fiber endface during inspection, the lens axis of the first relay lens being offset relative to the optical-fiber endface so as to deviate light reflected from the optical-fiber endface towards the optical-fiber axis of the connector.