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

Lukasz Kredzinski; Michael J. Connelly

doi:10.1117/12.970547

8 May 2012 Anti-Stokes effect CCD camera and SLD based optical coherence tomography for full-field imaging in the 1550nm region

Lukasz Kredzinski, Michael J. Connelly

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Proceedings Volume 8427, Biophotonics: Photonic Solutions for Better Health Care III; 84274D (2012) https://doi.org/10.1117/12.970547
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

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.

Citation Download Citation

Lukasz Kredzinski and Michael J. Connelly "Anti-Stokes effect CCD camera and SLD based optical coherence tomography for full-field imaging in the 1550nm region", Proc. SPIE 8427, Biophotonics: Photonic Solutions for Better Health Care III, 84274D (8 May 2012); https://doi.org/10.1117/12.970547

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KEYWORDS

Optical coherence tomography

Teeth

Cameras

CCD cameras

Tissues

Image resolution

Phase shifts

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