Coherent amplified optical coherence tomography

Jun Zhang; Bin Rao; Zhongping Chen

doi:10.1117/12.728654

11 July 2007 Coherent amplified optical coherence tomography

Jun Zhang, Bin Rao, Zhongping Chen

Proceedings Volume 6627, Optical Coherence Tomography and Coherence Techniques III; 662718 (2007) https://doi.org/10.1117/12.728654
Event: European Conferences on Biomedical Optics, 2007, Munich, Germany

Abstract

A technique to improve the signal-to-noise ratio (SNR) of a high speed 1300 nm swept source optical coherence tomography (SSOCT) system was demonstrated. A semiconductor optical amplifier (SOA) was employed in the sample arm to coherently amplify the weak light back-scattered from sample tissue without increasing laser power illuminated on the sample. The image quality improvement was visualized and quantified by imaging the anterior segment of a rabbit eye at imaging speed of 20,000 A-lines per second. The theory analysis of SNR gain is given followed by the discussion on the technologies that can further improve the SNR gain.

Citation Download Citation

Jun Zhang, Bin Rao, and Zhongping Chen "Coherent amplified optical coherence tomography", Proc. SPIE 6627, Optical Coherence Tomography and Coherence Techniques III, 662718 (11 July 2007); https://doi.org/10.1117/12.728654

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KEYWORDS

Signal to noise ratio

Optical coherence tomography

Image quality

Eye

Light

Tissue optics

Biomedical optics

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