Optical switch and method for aligning optical switch components
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United States of America Patent
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Jul 8, 2003
Grant Date -
N/A
app pub date -
Jan 5, 2001
filing date -
Jan 5, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical switch having a fiber/lens array and a switching substrate may be properly aligned using one or more grating(s) provided on the switching substrate. The grating(s) may be designed to have a predetermined response when the fiber/lens array and switching substrate are properly aligned. For example, the grating(s) may reflect incident light back into an input fiber, where the back-reflected light may be detected. Accordingly, the position of the switching substrate and/or fiber/lens array may be adjusted until back reflected light having predetermined power is detected.
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