Mirau-type full-field optical coherence tomography

Tuan-Shu Ho; Ming-Rung Tsai; Hung-Sheng Chang; Chih-Wei Lu

doi:10.1117/12.2582894

5 March 2021 Mirau-type full-field optical coherence tomography

Tuan-Shu Ho, Ming-Rung Tsai, Hung-Sheng Chang, Chih-Wei Lu

Proceedings Volume 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV; 116301F (2021) https://doi.org/10.1117/12.2582894
Event: SPIE BiOS, 2021, Online Only

Abstract

Dynamic-focusing optical coherence tomography (OCT) can provide ~1-μm isotropic resolution in extended depth of field, and Mirau design is preferred because of lower weight. In previous works, we reported a Mirau-type OCT based on high-radiance spatially-incoherent source. However, the illumination intensity is limited by the etendue. Besides, coherent artifacts increases with the partially coherent illumination scheme. In this report, we introduce a method to narrow illumination linewidth to 5 μm and reduce coherence area to 1 μm2. With spatially incoherent illumination, optimized throughput and low-weight design, low-speckle B-scan can be acquired within 0.25 second.

Conference Presentation

Citation Download Citation

Tuan-Shu Ho, Ming-Rung Tsai, Hung-Sheng Chang, and Chih-Wei Lu "Mirau-type full-field optical coherence tomography", Proc. SPIE 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV, 116301F (5 March 2021); https://doi.org/10.1117/12.2582894

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