Sensitivity advantage of swept source and Fourier domain optical coherence tomography
Sensitivity advantage of swept source and Fourier domain optical coherence tomography
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DOI：
10.1364/oe.11.002183
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发表时间：
2003-09-08
期刊：
影响因子：
3.8
通讯作者：
Izatt, JA
中科院分区：
文献类型：
--
作者：
Choma, MA;Sarunic, MV;Izatt, JA
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.
