800 kHz A-scan rate OCT demonstration in-vivo with OCTLIGHT VCSEL Swept Source

As part of the EU NETLAS project with partner, Applied Optics Group (University of Kent), DTU (the Technical University of Denmark), the OCTLIGHT VCSEL Swept Source was used to demonstrate real-time volumetric in-vivo OCT imaging of the human retina. This marks the first publication of in-vivo retina imaging using our SS-OCT. The AOG and DTU groups were able to acquire fast en-face images using our compact OCT system with an A-scan rate of 800 kHz which due to the sweeping period corresponds to sweeping at 1.6 MHz.

This paper was presented at Photonics West 2023 and you can watch the 10 min conference presentation and read about their findings here: Novel 1.6 MHz swept source for real-time volumetric in-vivo OCT imaging of the human retina.

The image shows OCT images acquired in real-time. a) B-scan OCT image of the retina. b) Confocal image centred on the optic nerve. c) En-face images recorded in sequence at 2 Hz where the image depth was varied. d) En-face 3D volume with depth-colour encoded projection. Adapted from: Grijalva et al. (2023).