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Optical-switch-structures

Image transfer laser engraving

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Optical switch structures

Details

Inventors: Lane, Charles H. R.;
Assignee: The General Electric Company, p.l.c. (GB2)
Primary Examiner: Miller; Stanley D.
Assistant Examiner: Duong; Tai V.
Attorney, Agent or Firm: Kirschstein, Kirschstein, Ottinger & Israel

A multi-input/output optical switch structure comprises a pair of parallel, inwardly facing main mirror elements 24, 25 and mounted equidistant between the main mirror elements is a co-linear array of optical switching units 40. To provide the multi-switching function and to compensate for the fact that the switch units are in a colinear array there are a plurality of additional mirror elements (41,42,43,44) mounted between the linear array and one main mirror element.

DETAILED DESCRIPTION The present invention has for an object to provide such a structure which is simpler to fabricate than prior structures and which also incorporates a low degree of cross-talk.
Accordingly, the present invention consists in a switching structure for switching at least two input light rays between at least two outputs, and comprising a plurality of individual switch units each including a reflective/transmissive interface, the units being mounted in a single linear array between two main mirror elements, and wherein at least one additional mirror element is included between the linear array and one of the main mirror elements.

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