Optical switch
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United States of America Patent
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-
Aug 24, 2004
Grant Date -
Nov 28, 2002
app pub date -
May 21, 2002
filing date -
May 22, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical switch that can restrain the occurrence of cross talk is provided. A first waveguide path 11 and a second waveguide path 12 are provided on a waveguide substrate PCL so as to intersect each other at a given angle. A trench T is formed in a straight line in the surface of the waveguide substrate PCL so as to cross the central axes of the first waveguide path and the second waveguide path. The trench T is as deep as to expose the whole end face of the first waveguide path and the second waveguide path. The first waveguide path 11 and the second waveguide path 12 are arranged such that their central axes are arranged asymmetrically with respect to the straight line.
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