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:
Oct. 30, 2007
Filed:
May. 12, 2006
Arturo Chavez-pirson, Tucson, AZ (US);
Shibin Jiang, Tucson, AZ (US);
Wenyan Tian, Tucson, AZ (US);
Dan Nguyen, Tucson, AZ (US);
Tao Luo, Tucson, AZ (US);
Bor-chyuan Hwang, Tucson, AZ (US);
Arturo Chavez-Pirson, Tucson, AZ (US);
Shibin Jiang, Tucson, AZ (US);
Wenyan Tian, Tucson, AZ (US);
Dan Nguyen, Tucson, AZ (US);
Tao Luo, Tucson, AZ (US);
Bor-Chyuan Hwang, Tucson, AZ (US);
NP Photonics, inc, Tucson, AZ (US);
Abstract
A low-noise, high-gain optical image amplifier includes a multi-mode pump source that injects optical energy into an active fiber's inner cladding to excite the dopant ions in a 2-D array of doped cores and provide gain. The cores are arranged to sample and collect light from an image incident on one end of the fiber, amplify the light and output an amplified pixilated image at the other end of the fiber. The multi-core active fiber preserves the spatial pattern and spectrum of the incident image. The cores may be configured as single-mode cores to preserve phase information or multi-mode cores to scramble the phase information. It is often desirable for the gain to be approximately uniform across the 2-D array. This can be achieved by pumping uniformly doped cores into their respective saturation regions.