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US 6,603,894 B1Granted
MEMS mirror arrays and external lens system in an optical switch
AssigneeTellium, Inc.
InventorChuan Pu
Life of this patent
Estimating the term…
Abstract
An optical network element using arrays of mirrors in an optical switch. A lens system is placed in between the mirror arrays and optical signals are passed through the lens system in an off-axis manner in order to increase switching capacity so that larger arrays of mirrors can be used, shorten the optical path through the switch or a combination of both.
Claims2
An optical switch comprising:
- a lens system having a first side and a second side, wherein the lens system has a finite focal length;
- a first mirror array positioned on the first side of the lens system;
- a second mirror array positioned on the second side of the lens system along a focal plane of the lens system and substantially perpendicular to an optical axis of the lens system;
- and
- a third mirror array positioned on the first side of the lens,
- wherein the first and third mirror arrays are positioned off the axis.
3 more elements
Dependencies are inferred from the claim text.