Frequency-encoded parallel OCT and associated systems and methods
OwnerJoseph A. Izatt, Andrew M. Rollinsinventors
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Abstract
Rapid scan optical delay techniques are used in parallel implementation of OCT using a detector and signal processing can be carried out using algorithms. Frequency encoded parallel OCT and multi-path, frequency encoded reference delay networks are used. A large number of frequency-correlated depth channels are used to acquire multiple depth scans of a sample. A different frequency shift (Doppler shift) on each different path length, or delay, is used to obtain simultaneous respective signals and, thus, information about the sample, from different depths in the sample. Reference delay line functions are obtained using bulk optics, integrated optics and fiber optics.
Claims27
An OCT system, comprising an illumination source, reference and sample arms, and a detector, and characterized in that the reference arm substantially simultaneously creates a plurality of reference delays for scanning a sample at respective depths, and wherein the depth information is encoded into frequency.
A method of scanning a sample using an OCT system including an illumination source, reference and sample arms, and a detector, characterized in substantially simultaneously creating a plurality of reference delays for scanning a sample at respective depths, and wherein the depth information is encoded into frequency.
Dependencies are inferred from the claim text.