Open AccessImprovement of 200 kHz optical beam scanner performance with multiple internal reflection
Author(s) -
Toyoda Seiji,
Sasaki Yuzo,
Kobayashi Junya
Publication year - 2014
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2013.0104
Subject(s) - scanner , optics , optical coherence tomography , reflection (computer programming) , modulation (music) , beam (structure) , total internal reflection , coherence (philosophical gambling strategy) , optical path , resolution (logic) , materials science , physics , computer science , acoustics , quantum mechanics , programming language , artificial intelligence
The authors have realised a KTa x Nb 1− x O 3 ‐based optical beam scanner that has three‐ and five‐pass configurations with internal reflection whose scanning angle is exactly proportional to the optical path length. They successfully increased the scanning angle to about 140 mrad with a 200 kHz modulation using a five‐pass configuration. This beam scanner will provide an optical coherence tomography (OCT) system with a spatial resolution of 7 μm and advantages over other OCT systems.