Accession Number : ADD009385

Title :   Method and Apparatus for Testing Performance of Fiber Optic Cable Components and Assemblies.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lebduska,Robert L

Report Date : 05 Jan 1982

Pagination or Media Count : 9

Abstract : Optical performance characteristics of fiber optical cable components and assemblies are tested for quality in an accurate, consistent, and stable manner by the method and apparatus of this invention. The novel apparatus enables acceptability testing of a supplier's fiber optic component/assembly by comparing its optical transmission level wtih the level of a similar known acceptance cable or a calibration cable, the latter two cables being incorporated in the invention apparatus. Other optical parameters can be tested to determine additional line losses, such as insertion losses, optical continuity, signal modulation, etc. Stability in the test method is assured by using a variable, calibrated power source. The accurateness of the method is achieved by simultaneously coupling light from a common optical source into both the invention apparatus cables and the fiber optic cable component-assembly to be tested, which arrangement eliminates amplitude drift of the optical source and of the apparatus detector from affecting the validity of subsequent relative measurements of the optical outputs.

Descriptors :   *Patents, *Computers, *Fiber optics, *Test methods, *Calibration, Cable assemblies, Insertion loss, Assembly, Optical properties, Amplitude, Modulation, Acceptability, Light transmission, Continuity, Light, Cables, Optics, Drift

Subject Categories : Test Facilities, Equipment and Methods
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE