Visual fault detection for optical measurements

• US 7,068,358 B2
• Filed: 01/17/2002
• Issued: 06/27/2006
• Est. Priority Date: 01/17/2002
• Status: Expired due to Fees

• Current Assignee: Agilent Technologies, Inc.
• Original Assignee: Agilent Technologies, Inc.
• Inventors: Beller, Josef, Peerlings, Joachim
• Primary Examiner(s): Nguyen, Tu T.
• Application Number:
  US10/500,973
• Publication Number:
  US 20050117147A1
• Time in Patent Office: 1,622 Days
• Field of Search: None
• US Class Current: 356/73.1
• CPC Class Codes: G01M 11/31 with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
• CPC Class Codes: G01M 11/3109 Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR

Abstract

An optical measuring device for providing a measurement of an optical device under test -DUT- comprises a measuring unit for providing an optical stimulus signal for the DUT and/or receiving a response signal of the DUT, and a visual fault localization unit for visually localizing faults within the DUT or a connection thereto. The measuring unit and the visual fault localization unit are preferably coupled to a signal direction unit, and the signal direction unit is further coupled to a connector representing an interface of the optical measuring device for coupling the DUT thereto.

Claims

1. An optical measuring device for providing a measurement of an optical device under test -DUT-comprising:

a measuring unit adapted for providing an optical stimulus signal for the DUT and receiving a response signal of the DUT, and

a visual fault localization unit adapted for transmitting a visual light into the DUT that will emit from fault locations within the DUT or a connection thereto, for visually localizing faults.

2. The optical measuring device of claim 1, wherein the measuring unit and the visual fault localization unit are coupled to a signal direction unit, and the signal direction unit is further coupled to a connector representing an interface of the optical measuring device for coupling the DUT thereto.

3. (Previously Presented) The optical measuring device of claim 2, wherein the signal direction unit is adapted to provide a signal direction for optical signals received by the measuring device at the connector.

4. The optical measuring device of claim 2, wherein the signal direction unit is adapted to provide a signal direction for optical signals provided by the measuring unit or the visual fault localization unit through the connector towards the DUT or any optical network connected therebetween.

5. The optical measuring device of claim 2, wherein the signal direction unit comprises at least one of a switch or a coupling unit.

6. The optical measuring device of claim 2, wherein the signal direction unit is provided to allow both the visual fault localization unit and the measuring unit to couple optical signals to the connector, and to direct substantially all optical signals received by the measuring device at the connector to the measuring unit.

7. The optical measuring device of claim 1, wherein the visual fault localization unit comprises a visual light source.

8. The optical measuring device of claim 1, wherein the response signal is at least one of a signal emitted from the DUT or a signal of the DUT in response to an applied stimulus signal.

9. The optical measuring device of claim 1, wherein the DUT comprises at least one of a discrete optical component, a fiber, or a fiber network with or without discrete optical components.

10. The optical measuring device of claim 1 being one of a time domain reflectometer, a WDM-tester, a chromatic dispersion tester, a polarization mote dispersion (PMD) tester, a loss tester, a multipath interference tester.

11. The optical measuring device of claim 1, wherein the visual fault localization unit comprises a red light source.