Swept-source sampling prototype

Background:

Optical coherence tomography (OCT) is an established medical imaging technology that uses light to scan biological tissue. A newly-developed swept-source module for medial eye diagnostics based on a proprietary semiconductor laser source with driving electronics, enables creating high-resolution 3D scans of the human eye with much more detail and precision compared to traditional diagnostics methods.

Project:

 In order to embed the described module into commercial scanners, the correct interface is required. A critical part of this interface is the high-speed clock signal used to synchronize the image acquisition with the laser’s variable wavelength. The task is to research and design a clock circuit with both a high dynamic range (center frequency of 1 GHz and deviation of +-800 KHz) as well as a low jitter (<300 ps).

Perspective:

The solution provides a leading edge in terms of cost-effectiveness compared to existing commercial solutions. It thereby strengthens the potential for commercialization and entry into a highly competitive market.

Completed: 2016.

Contact

Tiberiu Gabriel Zsurzsan
Associate Professor
DTU Electro
+45 45 25 36 24