High-Speed Scanning Probes for Internal and External Cavity Biomedical Optics
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Novel miniaturized and hand-held optical scanning fiber-optic probes are introduced for internal and external cavity optical sensing, respectively. These probes can rapidly acquire sample data such as blood flow rates via Doppler and reflectance over a spatial domain of interest. These scanning probes are based on a wavelength multiplexing technique that offers simple control via wavelength tuning. A unique optical amplifier-variable optical attenuator combination enables the calibration of the scanning probe power response. These non-coherent miniaturized fiber-optic probes function as a precision optical knife to remove fat in blood vessels or to make intra-cavity incisions with pinpoint accuracy. System issues such as probe beam angular scan, scan distance, and insertion loss have been addressed.
[1] N A Riza,et al. Free-space wavelength-multiplexed optical scanner. , 2001, Applied optics.
[2] Z. Yaqoob,et al. Submicrosecond speed variable optical attenuator using acoustooptics , 2001, IEEE Photonics Technology Letters.
[3] Masaya Notomi,et al. Superprism phenomena in photonic crystals: toward microscale lightwave circuits , 1999 .