Papers Published

1. Choma, M.A. and Sarunic, M.V. and Changhuei Yang and Izatt, J.A., Sensitivity advantage of swept source and Fourier domain optical coherence tomography, Opt. Express (USA), vol. 11 no. 18 (8) .
   (last updated on 2007/04/13)

   Abstract:
   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 to 30 dB over TD-OCT. Experimental verification is provided using two novel spectral discrimination (SD) OCT systems: a differential fiber-based 800 nm 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

   Keywords:
   biomedical optical imaging;Fourier transform optics;optical fibre theory;optical noise;optical tomography;photodiodes;sensitivity;superluminescent diodes;