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:
Aug. 29, 2000
Filed:
Aug. 19, 1998
Applicant:
Inventor:
Hector J De Los Santos, Del Aire, CA (US);
Assignee:
Hughes Electronics Corporation, El Segundo, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ; H01P / ;
U.S. Cl.
CPC ...
331 96 ; 3311 / ; 331 46 ; 330-49 ; 257 21 ; 359344 ;
Abstract
A launch quasi-optical amplifier including a photonic bandgap crystal, designed to operate within a specific frequency range. The photonic bandgap crystal is populated with active devices that are coupled to the alternate layers, or defects, in the crystal to compensate for the absorption in the alternate layers thereby creating a negative absorption coefficient. The photonic bandgap crystal is operable as an amplifier when the active devices are amplifiers, and as a wave source when the active devices are oscillators.