Polarization maintain fiber and low birefringence fiber based swept source polarization sensitive optical coherence tomography

• Main Authors: HUANG,JYUN-CIN, 黃俊欽
• Other Authors: GUO,WUN-JYUAN
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/58505535073531895674

碩士 === 國立臺灣師範大學 === 光電科技研究所 === 100 === In this research, a polarization maintain fiber and low birefringence fiber based swept source polarization sensitive optical coherence tomography system is proposed. We demonstrate that this compact and portable OCT system based on an all fiber sample arm, with accuracy comparable to bulk optics systems, which could serve as a technology to realize PS-OCT instrument for clinical applications. Furthermore, the system enables measurement and imaging of backscattered intensity, birefringence, and fast axis angle orientation simultaneously with only one single A-scan per transverse measurement location. This can reduce measurement time and sensitivity to sample movements. We also investigated the effects of sample arm fiber in linear and rotary motion, and demonstrate that by using low birefringence fiber in sample arm, changes in phase retardation angle due to sample fiber motion is not significant. However, changes in fast axis angle due to sample arm fiber motion need to be compensated in the future.