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:
Jun. 01, 2004
Filed:
Dec. 22, 2000
Michael Scalora, Huntsville, AL (US);
Mark J. Bloemer, Athens, AL (US);
Marco Centini, San Benedetto del Tronto (AP), IT;
Giuseppe D'Aguanno, Cassino (FR), IT;
Other;
Abstract
A photonic band gap (PBG) device is provided for frequency up and/or down-converting first and second photonic signals incident on the device to produce a down-converted output photonic signal. When the first and second incident photonic signals have respective first and second frequencies &ohgr; and &ohgr; , the down-converted photonic signal has a third frequency &ohgr; =&ohgr; −&ohgr; . When the first incident field has a frequency &ohgr; , the first up-converted photonic signal has a second frequency &ohgr; . The second up-converted photonic signal has a third frequency &ohgr; =&ohgr; +&ohgr; . Thus, the PBG device can be used to generate coherent near- and mid-IR signals by frequency down-converting photonic signals from readily available photonic signal sources, or red, blue, and ultraviolet signals by up-converting the same readily available photonic signal sources.