Dual-band time-multiplexing swept-source optical coherence tomography based on optical parametric amplification

Abstract

We report a high-speed time-multiplexing dual wavelength band swept laser source based on an optical parametric amplifier. A dual-band swept-source optical coherence tomography (OCT) system is implemented to demonstrate the advantage of a second wavelength band for fast spectroscopic OCT (SOCT). The innovative time-multiplexing architecture greatly reduces the complexity of the coupling and detecting configuration in comparison with the previous dual-band swept-source setup. We demonstrate the optical parametric amplifications characteristics as a dual-band generator and applied the source to firstly achieve the SOCT around 1550 nm. © 1995-2012 IEEE.