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Title: Noise reduction in supercontinuum sources for OCT by single-pulse spectral normalization

Supercontinuum (SC) sources offer high illumination power from a single-mode fiber with large spectral bandwidth including the visible spectrum, which is a growing application area for optical coherence tomography (OCT). However, SC spectra suffer from pulse-to-pulse variations, increasing noise in the resulting images. By simultaneously collecting a normalization spectrum, OCT image noise can be reduced by more than half (7 dB) for single pulses without any pulse averaging using only simple optical components.

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Applied Optics
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Article No. 5521
1559-128X; APOPAI
Optical Society of America
Sponsoring Org:
National Science Foundation
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