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Proceedings Paper

Low cost, high resolution optical coherence tomography utilizing a narrowband laser diode
Author(s): Kentaro Osawa; Naoko Senda; Hiroyuki Minemura; Koichi Watanabe; Jun Hato; Daisuke Tomita
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Paper Abstract

We developed a low cost, high resolution optical coherence tomography system utilizing a narrowband laser diode (LD), which is usually used in optical pickup for compact disc. To achieve high axial resolution even with the narrow bandwidth of the LD, we have constructed a free space interferometer including a phase-diversity detection system and a high numerical aperture (NA) objective. The axial and lateral resolution in the air was about 2.6 μm and 1 μm, respectively. The tomographic imaging of biological tissue was demonstrated, and the results showed that our OCT system enabled cellular-level imaging.

Paper Details

Date Published: 2 March 2015
PDF: 6 pages
Proc. SPIE 9312, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIX, 931237 (2 March 2015); doi: 10.1117/12.2074244
Show Author Affiliations
Kentaro Osawa, Hitachi, Ltd. (Japan)
Naoko Senda, Hitachi, Ltd. (Japan)
Hiroyuki Minemura, Hitachi, Ltd. (Japan)
Koichi Watanabe, Hitachi, Ltd. (Japan)
Jun Hato, Hitachi-LG Data Storage, Inc. (Japan)
Daisuke Tomita, Hitachi-LG Data Storage, Inc. (Japan)


Published in SPIE Proceedings Vol. 9312:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIX
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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