Grin-fiber lens based optical endoscopes
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United States of America Patent
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Jul 6, 2004
Grant Date -
Oct 3, 2002
app pub date -
Jul 31, 2001
filing date -
Feb 17, 2001
priority date (Note) -
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Abstract
An optical system for monitoring or imaging a sample includes a probe, an optical splitter or circulator, and an optical detector. The probe includes an optical fiber and a GRIN fiber-size lens fused to one end of the fiber. The optical splitter or circulator receives light from a source and directs a portion of the received light to the fiber. The optical detector is coupled to receive a portion of light collected from the sample by the GRIN fiber-size lens and is configured determine a characteristic of the sample from the received light.
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