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Updated: Feb 18, 2026

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
Published on: August 4, 2018
Q-switch-pumped supercontinuum for ultra-high resolution optical coherence tomography.
Commercially available Q-switch-pumped supercontinuum (QS-SC) sources offer a cost-effective and stable alternative for ultra-high resolution optical coherence tomography (UHR-OCT). By adjusting camera readout times, comparable image contrast to mode-locked sources is achievable.
Area of Science:
- Biomedical Optics
- Optical Imaging
- Medical Physics
Background:
- Ultra-high resolution optical coherence tomography (UHR-OCT) demands high-performance light sources.
- Mode-locked supercontinuum (ML-SC) sources are state-of-the-art but expensive.
- Q-switch-pumped supercontinuum (QS-SC) sources offer potential cost and stability advantages.
Purpose of the Study:
- To evaluate the feasibility of using a commercial QS-SC source for UHR-OCT.
- To compare the performance of QS-SC and ML-SC sources in UHR-OCT imaging.
- To identify optimal conditions for utilizing QS-SC sources in UHR-OCT.
Main Methods:
- Investigated a commercially available QS-SC source operating at 1300 nm.
- Compared UHR-OCT image quality obtained with QS-SC and ML-SC sources.
- Optimized camera readout times to accommodate the lower pumping rate of QS-SC sources.
Main Results:
- QS-SC sources exhibit superior pulse-to-pulse stability compared to ML-SC sources.
- Comparable visual contrast in UHR-OCT images was achieved using QS-SC by increasing camera readout time.
- QS-SC sources present a more economical option for UHR-OCT.
Conclusions:
- Commercial QS-SC sources are viable for UHR-OCT applications.
- Adjusting acquisition parameters enables comparable imaging performance to more expensive ML-SC sources.
- QS-SC sources represent a promising, cost-effective alternative for advanced OCT imaging.
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