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. 08, 2011
Filed:
Oct. 28, 2008
Optical waveguide amplifier using high quantum efficiency silicon nanocrystal embedded silicon oxide
Jiandong Huang, Vancouver, WA (US);
Pooran Chandra Joshi, Vancouver, WA (US);
Hao Zhang, Vancouver, WA (US);
Apostolos T. Voutsas, Portland, OR (US);
Jiandong Huang, Vancouver, WA (US);
Pooran Chandra Joshi, Vancouver, WA (US);
Hao Zhang, Vancouver, WA (US);
Apostolos T. Voutsas, Portland, OR (US);
Sharp Laboratories of America, Inc., Camas, WA (US);
Abstract
A method is provided for optical amplification using a silicon (Si) nanocrystal embedded silicon oxide (SiOx) waveguide. The method provides a Si nanocrystal embedded SiOx waveguide, where x is less than 2, having a quantum efficiency of greater than 10%. An optical input signal is supplied to the Si nanocrystal embedded SiOx waveguide, having a first power at a first wavelength in the range of 700 to 950 nm. The Si nanocrystal embedded SiOx waveguide is pumped with an optical source having a second power at a second wavelength in a range of 250 to 550 nm. As a result, an optical output signal having a third power is generated, greater than the first power, at the first wavelength. In one aspect, the third power increases in response to the length of the waveguide strip.