Electronically scanned optical coherence tomography with frequency modulated signals
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United States of America Patent
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Oct 7, 2014
Grant Date -
Jan 23, 2014
app pub date -
Aug 30, 2013
filing date -
Jul 16, 2001
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Abstract
An improved Optical Coherence Domain Reflectometry (OCDR) system is provided. One embodiment of this OCDR system outputs a detector signal carrying image depth information on multiple modulation frequencies, where each modulation frequency corresponds to a different image depth. The image depth information from the detector signal may be resolved by tuning to the desired modulation frequency. Another system for imaging body tissue uses multiple frequency modulators such that the light beam does not travel from an optical fiber to free space.
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