Simultaneous measurement of group refractive index and thickness of optical samples using optical coherence tomography
Optical coherence tomography (OCT), based on a Michelson interferometer and utilizing low coherence light as the optical source, is a novel technique for the noninvasive imaging of optical scattering media. A simple OCT scheme based on a 3x3 fiber coupler is presented for the simultaneous measurement of the refractive index and thickness of optical samples. The proposed system enables the refractive index and thickness to be determined without any prior knowledge of the sample parameters and is characterized by a simple and compact configuration, a straightforward measurement procedure, and a low cost. The feasibility of the proposed approach is demonstrated experimentally using BK7 and B270 optical glass samples.
- OSTI ID:
- 22036442
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 5 Vol. 49; ISSN 0003-6935; ISSN APOPAI
- Country of Publication:
- United States
- Language:
- English
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