Fiber lens assembly for optical device
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United States of America Patent
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Jan 10, 2012
Grant Date -
Sep 11, 2008
app pub date -
Jan 15, 2008
filing date -
Mar 8, 2007
priority date (Note) -
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Abstract
A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.
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