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:
Nov. 13, 2001
Filed:
Feb. 15, 2000
Elizabeth T. Kunkee, Manhattan Beach, CA (US);
James E. Leight, Los Angeles, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A method (,) and process (,) for extending the optical bandwidth of an optical signal splitter/amplifier (,) that includes optical amplifier material and an multi-mode interference splitter. A wider bandwidth is obtained by equalizing both the gain and noise figures for the splitter/amplifier (,) as a function of the perfect focus wavelength of the splitter and the amplified spontaneous emission spectra of the gain material. The peak wavelength of the semiconductor optical amplifier material is offset a distance from the perfect focus wavelength so that the net gain of the splitter/amplifier (,) is the semiconductor gain multiplied by the insertion loss of the splitter.