Tunable Fabry-Perot filters and lasers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 4, 2002
Grant Date -
N/A
app pub date -
Apr 14, 2000
filing date -
Apr 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tunable optical cavity constructed from a fixed mirror and a movable mirror. The fixed mirror is attached to a substrate having a first electrically conducting surface. A support member having the moveable mirror supported thereon and having a second electrically conducting surface, is suspended above the substrate. A circuit applies an electrical potential between the first and second electrically conducting surfaces thereby adjusting the distance between the fixed and movable mirrors. The fixed mirror and the moveable mirror are positioned such that the mirrors form the opposite ends of the optical cavity. The distance between the fixed mirror and the moveable mirror is a function of the applied electrical potential. The fixed mirror is mounted in a well in the substrate such that distance between the support member and the substrate is less than half the distance between the mirrors.
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