400 Hz volume rate swept-source optical coherence tomography at 1060 nm using a KTN deflector

05 October 2022

New journal paper published in IEEE Photonics Technology Letters!

Authors

A. M. Jiménez, S. Grelet, V. Tsatourian, P. B. Montague, Adrian Bradu, and A. Podoleanu

Title and coordinates

A. M. Jiménez, S. Grelet, V. Tsatourian, P. B. Montague, Adrian Bradu, and A. Podoleanu, “400 Hz volume rate swept-source optical coherence tomography at 1060 nm using a KTN deflector,” IEEE Photonics Techn. Lett., 2022.

Abstract

In this Letter, a swept-source optical coherence tomography (SS-OCT) instrument employing an innovative scanning protocol for high-speed volumetric rate imaging is demonstrated. The optical source is a tunable laser based on a supercontinuum source pumped with femtosecond pulses, followed by a time-stretched delay fiber. The instrument is equipped with an ultra-fast lateral scanner, based on a KTN crystal, driven at 100 kHz. The paper proves the utility of combining an ultra-fast lateral scanner with an ultra-fast swept laser to provide A-scans at a repetition rate of 40 MHz and an unprecedented 3D-OCT volume acquisition rate of 400 Hz.