Browse Prior Art Database

MULTICHANNEL FIBEROPTIC CABLE TESTER

IP.com Disclosure Number: IPCOM000008909D
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Jul-23
Document File: 1 page(s) / 63K

Publishing Venue

Motorola

Related People

Sylvia Planer: AUTHOR [+2]

Abstract

Describes a method for testing multichannel connectorized fiberoptic ribbon cables that checks each channel individually, allowing crosstalk to be checked and mechanical properties of the connector and its interface to be characterized.

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@ MOTOROLA

Technical Developments

MULTICHANNEL FIBEROPTIC CABLE TESTER

by Sylvia Planer and Gregory L. Westbrook

ABSTRACT

  Describes a method for testing multichannel connectorized fiberoptic ribbon cables that checks each channel individually, allowing crosstalk to be checked and mechanical properties of the connector and its interface to be characterized.

PROBLEM

  Fiberoptic cables consisting of a 10 channel rib- bon cable with connectors at each end which must be tested before shipping to the customer. Many fiberoptic cable problems are due to the connector and its assembly to the fiberoptic ribbon cable. A method was needed to check the assembly integrity as well as the light throughput and crosstalk of the cables. In addition, a method was needed to insure that the connectors mate properly to their recepta- cles on each corresponding light transmitter and receiver. There was no existing commercial tester that could perform this task, and no existing art to follow in building a tester.

SOLUTION

  A test apparatus was designed that uses OptobuP modules as the laser light transmitter. With the OptobusTM module used as a transmitter, the cable under test is plugged into a receptacle on the OptobusTM module, just as it would be in an actual field application. With a computer to exer

cise the laser light sources on the OptobusTM mod- ule, the light from each of the 10 lasers can be inde- pendently controlled. The optical receiver is also an OptobuP module, again with...