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.:

US 6748139 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 08, 2004

Filed:

Jul. 15, 2002
Applicant:
Inventors:

Kirk S. Giboney, Santa Rosa, CA (US);

Annette C. Grot, Cupertino, CA (US);

Konstantinos G. Haritos, Saratoga, CA (US);

Assignee:

Agilent Technologies, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 ; G02B 6/26 ; G02B 6/34 ;
U.S. Cl.
CPC ...
G02B 6/00 ; G02B 6/26 ; G02B 6/34 ;
Abstract

An apparatus for coupling light from a light source into an optical waveguide having an entrance aperture for receiving light to be transmitted by the waveguide. The entrance aperture has a numerical aperture that may vary over the aperture. The apparatus includes an optical element that conditions the light from the light source and a diffractive optical element. The diffractive optical element generates a plurality of light spots from the light source. The light from each light spot enters the entrance aperture of the waveguide at a different point on the entrance aperture. Each of the light spots has a numerical aperture that is less than the numerical aperture of the entrance aperture at the point on the entrance aperture at which the light from that light spots enters the entrance aperture.


Find Patent Forward Citations

Giboney, Kirk. (2004). Coupler utilizing a diffractive optical element for coupling light to an optical waveguide (U.S. Patent No. 6748139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6748139

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