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:
Mar. 18, 2008
Filed:
Mar. 30, 2007
Donald Scott Fisher, Spring Valley Township, OH (US);
Donald Scott Fisher, Spring Valley Township, OH (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
A multimode fiber receiver includes a multimode collimator, a multimode fiber optic amplifier and a detector. The collimator receives incoming signals and provides the signals to the amplifier. The amplifier includes plural amplification stages, a limiter, a tunable narrow band filter and a microcontroller. The amplification stages each include a gain element and a noise filter. The limiter receives the amplified signals and limits the energy of those signals. The optical signals subsequently traverse the narrow band filter including an adjustable pass band to provide desired signals to the detector. The microcontroller measures the energy of the incoming and output signals to control the limiter, amplification stages and/or narrow band filter in order to produce signals within the dynamic range of a particular application. The multimode fiber optic amplifier and/or receiver of the present invention is preferably utilized within an optical communication unit.