Multi-window approach to improve resolution, side-lobe suppression, and phase sensitivity in OCT

Clayton Walker; Anna Wisniowiecki; Jack Tang; John Oghalai; Brian E. Applegate

doi:10.1117/12.2613301

7 March 2022 Multi-window approach to improve resolution, side-lobe suppression, and phase sensitivity in OCT

Clayton Walker, Anna Wisniowiecki, Jack Tang, John Oghalai, Brian E. Applegate

Proceedings Volume 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; 119480P (2022) https://doi.org/10.1117/12.2613301
Event: SPIE BiOS, 2022, San Francisco, California, United States

Conference Poster

Abstract

We describe the optimization and application of a multi-window approach for improved resolution, side-lobe suppression, and phase sensitivity. Using the Hann window as a reference, we show that 10 windows are sufficient to achieve 42% resolution improvement, -31 dB side-lobe intensity, and a 20% improvement in phase sensitivity. We explored the benefits of this windowing technique for OCT imaging using a prototype narrow-band laser, OCT vibrometry, and Doppler OCT for angiography. Experimental data are in good agreement with simulation. We believe it will be possible using this optimized approach to achieve real-time processing and display, despite the added computational load.

Citation Download Citation

Clayton Walker, Anna Wisniowiecki, Jack Tang, John Oghalai, and Brian E. Applegate "Multi-window approach to improve resolution, side-lobe suppression, and phase sensitivity in OCT", Proc. SPIE 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, 119480P (7 March 2022); https://doi.org/10.1117/12.2613301

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