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:
May. 14, 2013
Filed:
Mar. 11, 2011
Peter J. Morgan, Glenelg, MD (US);
Peter J. Morgan, Glenelg, MD (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
The present invention is directed to a photonic digital-to-analog converter (pDAC) system. The system may include a mode locked laser, an optical splitter connected to the laser, and a plurality of reflective semiconductor optical amplifiers connected to the splitter. The mode locked laser transmits a digital optical pulse train to the splitter. The splitter splits an optical pulse of the digital pulse train into multiple optical pulses and provides the multiple optical pulses to the amplifiers via a plurality of optical paths, at least two of the optical paths having different path lengths. The amplifiers amplify the multiple optical pulses and provide the amplified multiple optical pulses to the splitter. The splitter outputs an analog optical pulse train derived from the amplified multiple optical pulses. The system provides for faster sampling rate and lower jitter than Electrical Digital-to-Analog converter (eDAC) systems.