基于LED照明的线扫描频域OCT成像系统设计  

Design of line scanning frequency domain OCT imaging system based on LED illumination

作　　者：何倩倩 殷晓可 周哲海[1] HE Qian-qian;YIN Xiao-ke;ZHOU Zhe-hai(Key Laboratory of Optoelectronic Measurement Technology and Instrument,Ministry of Education,Beijing Information Science and Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学光电测试技术及仪器教育部重点实验室,北京100192

出　　处：《激光与红外》2022年第1期76-83,共8页Laser & Infrared

基　　金：北京长城学者支持计划项目(No.CIT&TCD20190323);北京青年拔尖人才支持计划项目(No.Z2019042);2020年度北京市实培计划项目资助。

摘　　要：光学相干层析成像技术(Optical Coherence Tomography,OCT)由于其非接触、无损伤、高分辨率等优点,在医学、生物学、材料学等领域有着广泛的应用,开发基于低成本光源照明且快速成像的OCT系统已经成为OCT技术发展的一个重要趋势。论文研究了一种基于LED照明的频域线扫描OCT成像系统,给出了系统的基本工作原理,进行了系统结构设计、理论计算和初步的实验验证,结果表明,相对于传统的OCT成像方法,该方法降低了成本,并进一步提高了成像速度,具有较大的潜在应用价值。Optical Coherence Tomography(OCT)has been widely used in medicine,biology,materials and other fields.Developing a lower cost and higher imaging speed OCT system has become an important trend in OCT technology development due to its non-contact,non-invasive and high resolution advantages.A line scanning frequency domain OCT imaging system based on LED illumination is proposed in this paper,and its principle introduced in details.Through systematic structure designs,theoretical calculations and experimental verification are performed.The experimental results show that the proposed system reduces cost and has faster imaging speed compared with traditional methods,and has potential application value.

关 键 词：光学相干层析 LED光源 频域OCT 线扫描 

分 类 号：TN29[电子电信—物理电子学]