Optical waveguides – With optical coupler – Switch
Patent
1997-09-09
2000-01-11
Healy, Brian
Optical waveguides
With optical coupler
Switch
385 15, 385 17, 385 18, 385 24, G02B 626
Patent
active
060144777
ABSTRACT:
A switching element according to this invention comprises a photostrictive member. Exposing the member to control light results in a dimensional change in the material. This change is utilized for changing the relative position between an optical fiber and another element, exemplarily a further fiber, a corrugated member, or a mirror, such that signal radiation is directed to a predetermined output port. A variety of exemplary switching elements are disclosed, including interferometric, beam-steering, evanescent field and mode conversion switching elements. Disclosed are also optical communication systems that utilize such switching elements, including passive optical networks.
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Barber Bradley Paul
Bishop David John
Frigo Nicholas J.
Gammel Peter Ledel
AT&T Corp.
Healy Brian
Lucent Technologies - Inc.
Pacher Eugen E.
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