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:
Jun. 25, 2002
Filed:
Aug. 28, 2000
Applicant:
Inventor:
Eric Rong Ao, Nepean, CA;
Assignee:
JDS Uniphase Inc., Ottawa, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/26 ; G02B 6/42 ;
U.S. Cl.
CPC ...
G02B 6/26 ; G02B 6/42 ;
Abstract
An M×N optical switch in which the focal lengths of the collimating lenses are adjusted so that the waists of the Gaussian beams exiting the collimating lenses are focused on reflecting elements, which are positioned along a diagonal of the array of reflecting elements. This arrangement increases the number of beams that are symmetrical about the waist position, which increases the coupling efficiency. The best possible arrangement occurs when all of the waists are equal in diameter, thereby ensuring that for every output port the distances from the waists to the focusing lens are identical.