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Advanced Optical Technologies

Editor-in-Chief: Pfeffer, Michael

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CiteScore 2016: 0.99
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On-chip Mach-Zehnder interferometer for OCT systems

Ton G. van Leeuwen
  • Corresponding author
  • Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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  • Other articles by this author:
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/ Imran B. Akca
  • Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, P.O. Box 22700, Amsterdam 1100 DE, The Netherlands
  • Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan, Amsterdam, The Netherlands
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Nikolaos Angelou
  • Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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  • De Gruyter OnlineGoogle Scholar
/ Nicolas Weiss
  • Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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  • De Gruyter OnlineGoogle Scholar
/ Marcel Hoekman / Arne Leinse / Rene G. Heideman
Published Online: 2018-01-06 | DOI: https://doi.org/10.1515/aot-2017-0061

Abstract

By using integrated optics, it is possible to reduce the size and cost of a bulky optical coherence tomography (OCT) system. One of the OCT components that can be implemented on-chip is the interferometer. In this work, we present the design and characterization of a Mach-Zehnder interferometer consisting of the wavelength-independent splitters and an on-chip reference arm. The Si3N4 was chosen as the material platform as it can provide low losses while keeping the device size small. The device was characterized by using a home-built swept source OCT system. A sensitivity value of 83 dB, an axial resolution of 15.2 μm (in air) and a depth range of 2.5 mm (in air) were all obtained.

Keywords: Mach-Zehnder interferometer; on-chip; optical coherence tomography; silicon nitride

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About the article

Received: 2017-09-14

Accepted: 2017-11-27

Published Online: 2018-01-06


Citation Information: Advanced Optical Technologies, 20170061, ISSN (Online) 2192-8584, ISSN (Print) 2192-8576, DOI: https://doi.org/10.1515/aot-2017-0061.

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