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.
Optical Coherence Tomography (OCT) is a promising non-invasive imaging technology capable of
carrying out 3D high-resolution cross-sectional images of the internal microstructure of examined material.
However, almost all of these systems are expensive, requiring the use of complex optical setups, expensive light
sources and complicated scanning of the sample under test. In addition most of these systems have not taken
advantage of the competitively priced optical components available at wavelength within the main optical
communications band located in the 1550 nm region. A comparatively simple and inexpensive full-field OCT
system (FF-OCT), based on a superluminescent diode (SLD) light source and anti-stokes imaging device was
constructed, to perform 3D cross-sectional imaging. This kind of inexpensive setup with moderate resolution
could be easily applicable in low-level biomedical and industrial diagnostics. This paper involves calibration of
the system and determines its suitability for imaging structures of biological tissues such as teeth, which has low
absorption at 1550 nm.
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