Abstract

Optical Coherence Tomography (OCT), a revolutionary technology was initially developed for imaging retinas to investigate various eye diseases like glaucoma, diabetic retinopathy etc. It later found acceptance for its non-invasive nature in other bio medical applications like cardiology, dermatology etc. It is very similar to ultrasound in nature; the only difference is usage of light waves in place of sound waves and it offers higher axial resolution in comparison with most of other existing technologies. The technology behind SD-OCT is Michelson interferometry, which offers the usage of Super Luminescent Diode (SLD) source as low temporal coherent source with broad bandwidth to measure its absorption/scattering through the sample specimen. In the following paper, we depict the experimental setup for A scan as well as B scan. The spectral response of the source and the output waveforms shows the response in LabVIEW software. Samples with different refractive indices are tested and depth of up to 0.5 mm can be obtained with 127 pixels.

© 2016 Optical Society of America