We have developed a custom analog CMOS circuit to perform the signal processing for an optical coherence tomography imaging system. The circuit is realized in a 1.5 μm low-noise analog CMOS technology. The circuitry extracts the Doppler frequency from the signal and electrically mixes this with the original signal to provide a filtered. A-scan. The circuitry was used to produce a two-dimensional image of an onion.
- Biomedical imaging
- CMOS analog integrated circuits
- Optical tomography
ASJC Scopus subject areas
- Biomedical Engineering