Akinetic Swept-Source Master–Slave-Enhanced Optical Coherence Tomography
Abstract
:1. Introduction
2. Materials and Methods
2.1. Channelled Spectrum Processing for MS–OCT
3. Results
3.1. Complex Master–Slave/Hybrid Master–Slave Operation with Pre-Stored Masks
- Interferogram corrected with the DVV data, having been sampled with the source’s clock signal (both (i) and (ii) buses connected to the digitiser in Figure 2a);
- Interferogram not corrected with the DVV data, but still sampled with the source’s clock signal (bus (ii) only in Figure 2a connected);
- Interferogram sampled with the digitiser card’s built-in clock signal (). Due to the asynchronous operation, the DVV correction is not possible (both (i) and (ii) buses in Figure 2a disconnected).
3.2. Down-Conversion (DC) OCT Implementation with Two Physical Interferometers
4. Discussion and Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Method | Transform-Limited | FFT (No Dispersion Compensation) | CMS–OCT | HyMS–OCT | |
---|---|---|---|---|---|
Sampling Protocol | |||||
DVV-corrected, 400 MHz source clock | 11.6 |
Sampling Protocol | Peak Width (m) | SNR (dB) |
---|---|---|
no DVV correction, 400 MHz source clock | 12.57 | 19.6 |
12.47 | 22.4 | |
asynchronous operation, 500 MHz clock from digitiser | 14.82 | 18.3 |
14.64 | 20.8 |
Method | Transform-Limited | FFT (No Dispersion Compensation) | CMS–OCT | HyMS–OCT | |
---|---|---|---|---|---|
Sampling Protocol | |||||
DVV-corrected, 400 MHz source clock | n/a |
Advantages | Disadvantages |
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Marques, M.J.; Cernat, R.; Ensher, J.; Bradu, A.; Podoleanu, A. Akinetic Swept-Source Master–Slave-Enhanced Optical Coherence Tomography. Photonics 2021, 8, 141. https://doi.org/10.3390/photonics8050141
Marques MJ, Cernat R, Ensher J, Bradu A, Podoleanu A. Akinetic Swept-Source Master–Slave-Enhanced Optical Coherence Tomography. Photonics. 2021; 8(5):141. https://doi.org/10.3390/photonics8050141
Chicago/Turabian StyleMarques, Manuel J., Ramona Cernat, Jason Ensher, Adrian Bradu, and Adrian Podoleanu. 2021. "Akinetic Swept-Source Master–Slave-Enhanced Optical Coherence Tomography" Photonics 8, no. 5: 141. https://doi.org/10.3390/photonics8050141
APA StyleMarques, M. J., Cernat, R., Ensher, J., Bradu, A., & Podoleanu, A. (2021). Akinetic Swept-Source Master–Slave-Enhanced Optical Coherence Tomography. Photonics, 8(5), 141. https://doi.org/10.3390/photonics8050141