Sensitivity advantage of swept source and Fourier domain optical coherence tomography

被引：1487

作者：

Choma, MA ^{[1
]}

Sarunic, MV ^{[1
]}

Yang, CH ^{[1
]}

Izatt, JA ^{[1
]}

机构：

[1] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

OPTICS EXPRESS | 2003年 / 11卷 / 18期

关键词：

D O I：

10.1364/OE.11.002183

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present theoretical and experimental results which demonstrate the superior sensitivity of swept source ( SS) and Fourier domain (FD) optical coherence tomography (OCT) techniques over the conventional time domain (TD) approach. We show that SS- and FD-OCT have equivalent expressions for system signal-to-noise ratio which result in a typical sensitivity advantage of 20-30dB over TD-OCT. Experimental verification is provided using two novel spectral discrimination (SD) OCT systems: a differential fiber-based 800nm FD-OCT system which employs deep-well photodiode arrays, and a differential 1300 nm SS- OCT system based on a swept laser with an 87 nm tuning range. (C) 2003 Optical Society of America.

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收藏

页码：2183 / 2189

页数：7

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