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:
Apr. 13, 2004
Filed:
Mar. 19, 2001
Optiwork, Inc., Fremont, CA (US);
Abstract
A 1×N optical switch includes an input fiber collimator, an x-y scanning device including two perpendicular galvanometer-driven rotatable mirrors, and a 2-D array of output fiber collimators arranged over an output surface so as to be aligned with a corresponding ray extending from the x-y scanning device. Each of the output fiber collimators corresponds to a unique pair of rotation angles of the two mirrors. The output surface can have a spherical curvature, or a curvature which accounts for the dependency of optical path on the angles of the two mirrors. The switch allows improved switching speeds, accuracy, and reduced and uniform insertion losses. The architecture can be used for N×M switches and N×M cross-connects.