Optimal operational conditions for supercontinuum-based ultrahigh-resolution endoscopic OCT imaging

Wu Yuan, Jessica Mavadia-Shukla, Jiefeng Xi, Wenxuan Liang, Xiaoyun Yu, Shaoyong Yu, Xingde Li

Research output: Contribution to journalArticle

Abstract

We investigated the optimal operational conditions for utilizing a broadband supercontinuum (SC) source in a portable 800 nm spectral-domain (SD) endoscopic OCT system to enable high resolution, high-sensitivity, and high-speed imaging in vivo. A SC source with a 3-dB bandwidth of ∼246 nm was employed to obtain an axial resolution of ∼2.7 μm (in air) and an optimal detection sensitivity of ∼ - 107 dB with an imaging speed up to 35 frames/s (at 70 k A-scans/s). The performance of the SC-based SD-OCT endoscopy system was demonstrated by imaging Guinea pig esophagus in vivo, achieving image quality comparable to that acquired with a broadband home-built Ti:sapphire laser.

Original languageEnglish (US)
Pages (from-to)250-253
Number of pages4
JournalOptics Letters
Volume41
Issue number2
DOIs
StatePublished - Jan 15 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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