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13 March 2024 Dual laser full-field Fourier-domain optical coherence tomography at 50 MHz A-scan rate
Sarvesh Anil Thakur, Dierck Hillmann
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Proceedings Volume PC12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII; PC128300C (2024) https://doi.org/10.1117/12.3005689
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
We present a full-field Fourier-domain optical coherence tomography system capable of acquiring volumetric data at 50 MHz A-scan rate with an axial resolution of 3.3 µm in air. This high resolution is achieved by phase-correctly combining the interferograms of two independent swept lasers to achieve a total bandwidth of 145 nm at a center wavelength of 880 nm. By changing the software control of the system, it can be switched to higher acquisition speeds of more than 100 MHz A-scan rate while reducing the resolution to 5.9 µm. We show images of technical and biological samples, including the retina.
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Sarvesh Anil Thakur and Dierck Hillmann "Dual laser full-field Fourier-domain optical coherence tomography at 50 MHz A-scan rate", Proc. SPIE PC12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII, PC128300C (13 March 2024); https://doi.org/10.1117/12.3005689
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KEYWORDS
Optical coherence tomography
Laser optics
Functional imaging
Imaging systems
Retina
Image resolution
Retinal scanning
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