Actively Mode Locked Laser Swept Source for OCT Medical Imaging
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United States of America Patent
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Jun 28, 2012
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Dec 27, 2010
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Dec 27, 2010
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Abstract
An optical coherence analysis system uses a laser swept source that is constrained to operate in a mode locked condition. This is accomplished by synchronously changing the laser cavity's gain and/or phase based on the round trip travel time of light in the cavity. This improves high speed tuning by taking advantage of frequency shifting mechanisms within the cavity and avoids chaotic laser behavior.
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