High-speed image data acquisition of OCT utilizing push-pull operation of fiber-optic piezoelectric modulators

A fiber-optic piezoelectric modulator (PZM) is a promising tool for high-speed image data acquisition of OCT. We demonstrate here the high-speed OCT utilizing push-pull operation of PZMs which can provide up to 2000 scan/sec with a scan depth of 2.5 mm. The axial resolution is 17 /spl mu/m for the 1.3-/spl mu/m wavelength. A motion-artifact-free in-vivo OCT of human finger tip is presented.