Thermally tuned VCSEL-based SS-OCT system

Milana Kendrisic; Matthias Salas; Vladislav Agafonov; Lorenzo Ferrara; Wolfgang Drexler; Rainer A. Leitgeb

doi:10.1117/12.2648078

6 March 2023 Thermally tuned VCSEL-based SS-OCT system

Milana Kendrisic, Matthias Salas, Vladislav Agafonov, Lorenzo Ferrara, Wolfgang Drexler, Rainer A. Leitgeb

Author Affiliations +

Proceedings Volume PC12369, Optics and Biophotonics in Low-Resource Settings IX; PC123690H (2023) https://doi.org/10.1117/12.2648078
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

A low-cost swept-source OCT system for retinal imaging was achieved, based on a thermally tuned vertical-cavity surface-emitting laser (VCSEL). Its center wavelength can be tuned by adjusting the operating temperature through modulation of the injection current. Sweep rates of 50-100 kHz with a sensitivity 97dB and an axial resolution of about 50μm in air have been achieved. We present the results of a human retina in vivo, using such a thermally tuned VCSEL-based SS-OCT system. Based on our results, we believe that this technology can be used as a cost-effective OCT alternative for point-of-care diagnostics.

Conference Presentation

Citation Download Citation

Milana Kendrisic, Matthias Salas, Vladislav Agafonov, Lorenzo Ferrara, Wolfgang Drexler, and Rainer A. Leitgeb "Thermally tuned VCSEL-based SS-OCT system", Proc. SPIE PC12369, Optics and Biophotonics in Low-Resource Settings IX, PC123690H (6 March 2023); https://doi.org/10.1117/12.2648078

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