Ultrahigh-resolution FDOCT system for dermatology

Peter Koch; Dennis Boller D.V.M.; Edmund Koch; Julia Welzel; Gereon Huttmann

doi:10.1117/12.592800

13 April 2005 Ultrahigh-resolution FDOCT system for dermatology

Peter Koch, Dennis Boller D.V.M., Edmund Koch, Julia Welzel, Gereon Huttmann

Proceedings Volume 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX; (2005) https://doi.org/10.1117/12.592800
Event: SPIE BiOS, 2005, San Jose, CA, United States

Abstract

We developed an ultra high resolution Fourier-Domain-OCT (FD-OCT) system for the use in dermatology. An axial resolution of less than 3 μm within the tissue was achieved by superimposing two broadband SLDs. FDOCT systems offer new possibilities for the design of the interferometer and the application system. Since no phase modulator is needed, the reference plane can be realized within the application system. This leads to a substantial improvement in the sensitivity against polarisation mode dispersion (PMD). It furthermore makes an elaborate chromatic dispersion matching obsolete. Two different applicaton system were compared. In the first system the reference wave was created by a plane plate just a few 100 μm above the probe. In the second approach an extra beam splitter and a mirror to generate the reference wave was used.

Citation Download Citation

Peter Koch, Dennis Boller D.V.M., Edmund Koch, Julia Welzel, and Gereon Huttmann "Ultrahigh-resolution FDOCT system for dermatology", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); https://doi.org/10.1117/12.592800

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