Improvement of 200 kHz optical beam scanner performance with multiple internal reflection

The Journal of Engineering

Seiji Toyoda¹  Yuzo Sasaki¹  Junya Kobayashi¹ 

[1] NTT Photonics Laboratories;

关键词: optical scanners;    reflectivity;    potassium compounds;    tantalum compounds;    optical modulation;    optical tomography;    optical beam scanner performance;    internal reflection;    three-pass configuration;    scanning angle;    optical path length;    modulation;    five-pass configuration;    optical coherence tomography;    OCT system;    spatial resolution;    frequency 200 kHz;   

DOI  :  10.1049/joe.2013.0104

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown