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:
Oct. 20, 1998
Filed:
Jun. 16, 1997
Leo J Thompson, Lilburn, GA (US);
Emmanuel Anemogiannis, Atlanta, GA (US);
VeriFiber Technologies, Inc., Duluth, GA (US);
Abstract
A method and apparatus for distinguishing between fiber types having different dispersion characteristics and arbitrary lengths is disclosed. An optical pulse having a predetermined wavelength and predetermined time width is propagated through the fiber and then detected. The optical pulse after being fed through the fiber is measured at different wavelengths along with the length of the fiber. If the measured pulse is within a predetermined amount at the determined length, then fiber under test corresponds to a type having a first dispersion characteristic. If it is determined that the measured pulse is within a second amount, then the fiber under test corresponds to a type having a second dispersion characteristic. Alternately one or more optical pulses of arbitrary width each having different wavelengths after being propagated through the fiber under test is fed through a plurality of filters and detected. The wavelength of the pulse of the smallest time duration is detected and a corresponding dispersion characteristic is then indicated.