The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1981
Filed:
Apr. 03, 1979
William C Stankos, Melbourne, FL (US);
James R MacLean, Melbourne, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
In testing systems using fiber optic lengths, it is desirable to have means to simulate long lengths of such fiber optic lengths. To accomplish this, a device and a method are provided for holding first and second optic fibers which have a combined attenuation less than that which it is desired to simulate. An optical attenuator is then inserted between respective ends of said first and second optic fibers. The degree of attenuation of the optical attenuator is set to correspond to the attenuation of the length to be simulated minus the combined attenuation of the first and second optic fibers. In most testing situations, the attenuation of the first and second fibers is negligible in comparison with the much longer length of optic fiber being simulated, so that essentially the entire attenuation is provided by the optical attenuator. In addition to being used to simulate long length optic fibers for test conditions, the method and device can also be used to equalize the attenuation of optic fibers running in parallel with each other where the optic fibers have different degrees of attenuation.