Linear OCT system with increased measurement depth for biomedical applications

Gereon Hüttmann*, Volker Hellemanns, Peter Koch

*Corresponding author for this work

Abstract

Time domain optical coherence tomography (OCT) traditionally uses scanning optical delay lines with moving parts and a point detectors. OCT systems build with a linear detector array (linear OCT or L-OCT) are simple and robust, but a detector with approx. 10,000 elements is needed for an imaging depth of 2 millimeter, which is necessary for most biomedical applications. We present a new optical setup for L-OCT with increased measurement range. An additional grating performs a reduction of the spatial frequencies of the fringe pattern on the detector without loss of SNR, so the signal can be sampled with a minimal number of pixels. The theory for this approach is addressed and first measurements are presented.

Original languageEnglish
Title of host publicationCoherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI
EditorsJames G. Fujimoto, Joseph A. Izatt, Valery V. Tuchin
Number of pages6
Volume6429
PublisherSPIE
Publication date10.02.2007
Article number642915
ISBN (Print)978-081946542-9
DOIs
Publication statusPublished - 10.02.2007
EventCoherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI - San Jose, United States
Duration: 22.01.200724.01.2007
Conference number: 69482

Research Areas and Centers

  • Academic Focus: Biomedical Engineering

Fingerprint

Dive into the research topics of 'Linear OCT system with increased measurement depth for biomedical applications'. Together they form a unique fingerprint.

Cite this