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High-speed adaptive interferometer for optical coherence-domain reflectometry through turbid media

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Abstract

Two-wave mixing in a dynamic holographic film acts as the adaptive beam combiner in a short-coherence interferometer that performs optical coherence-domain reflectometry (OCDR) through turbid media. This approach combines the high spatial resolution and sensitivity of coherence-domain reflectometry with photorefractive quantum-well-based adaptive homodyne detection. A depth resolution of 28 µm and penetration through 16 mean free paths in a turbid medium have been obtained in this adaptive OCDR application.

© 2003 Optical Society of America

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