Kredzinski, L,Connelly, MJ,Popp, J,Drexler, W,Tuchin, VV,Matthews, DL

BIOPHOTONICS: PHOTONIC SOLUTIONS FOR BETTER HEALTH CARE III

Anti-Stokes effect CCD camera and SLD based optical coherence tomography for full-field imaging in the 1550 nm region

2012

December

Published

1

()

full-field optical coherence tomography spatially incoherent illumination infrared imaging mode scrambling DENTAL ENAMEL LIGHT SCATTERING

Full-field Optical coherence tomography is an en-face interferometric imaging technology capable of carrying out high resolution cross-sectional imaging of the internal microstructure of an examined specimen in a non-invasive manner. The presented system is based on competitively priced optical components available at the main optical communications band located in the 1550 nm region. It consists of a superluminescent diode and an anti-stokes imaging device. The single mode fibre coupled SLD was connected to a multi-mode fibre inserted into a mode scrambler to obtain spatially incoherent illumination, suitable for OCT wide-field modality in terms of crosstalk suppression and image enhancement. This relatively inexpensive system with moderate resolution of approximately 24um x 12um (axial x lateral) was constructed to perform a 3D cross sectional imaging of a human tooth. To our knowledge this is the first 1550 nm full-field OCT system reported.

10.1117/12.970547