High-performance, low-cost optical coherence tomography (OCT) on a silicon photonic chip platform

Diana Mojahed; Maarten Peters; Juejun Hu

doi:10.1117/12.2650916

6 March 2023 High-performance, low-cost optical coherence tomography (OCT) on a silicon photonic chip platform

Diana Mojahed, Maarten Peters, Juejun Hu

Proceedings Volume PC12374, Microfluidics, BioMEMS, and Medical Microsystems XXI; PC1237406 (2023) https://doi.org/10.1117/12.2650916
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

Increased adoption of optical coherence tomography (OCT) by the medical community has been hampered by its high price and bulky form factor. We aim to build an on-chip OCT system using silicon photonics technologies. Our on-chip OCT system includes three components: a spectrometer, a tunable delay line reference arm, and an optical phased array (OPA) beam scanner. In this abstract, we describe the design of the on-chip spectrometer. We design a digital Fourier transform (dFT) spectrometer centered at 1310nm (100nm bandwidth), with 1024 spectral channels, and 0.0977nm spectral resolution providing up to 108.45dB sensitivity and an axial resolution of 8.8µm.

Conference Presentation

Citation Download Citation

Diana Mojahed, Maarten Peters, and Juejun Hu "High-performance, low-cost optical coherence tomography (OCT) on a silicon photonic chip platform", Proc. SPIE PC12374, Microfluidics, BioMEMS, and Medical Microsystems XXI, PC1237406 (6 March 2023); https://doi.org/10.1117/12.2650916

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