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超宽带光源频谱域相干层析术的光谱标定方法

Spectral Calibration Method for Spectral Domain Coherence Tomography with Ultra-Wideband Light Source

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摘要

基于超宽带光源频谱域相干层析术,提出一种适用于实际系统的多普勒频移标定方法。该方法先用光路模块整体运动替代传统的平面镜运动,使标定方法适用于实际情况,然后在运动中采集一系列随时间变化的光谱,最后通过傅里叶变换分析光谱分布范围。结果表明,相比于传统标定方法,所提标定方法拥有更高的精度,系统轴向分辨率提高了0.34 μm,在实际生物组织成像中有更好的成像效果。

Abstract

Based on spectral domain optical coherence tomography with ultra-wideband light source, one Doppler shift calibration method suitable for a practical system is proposed, in which the mirror motion in the traditional method is replaced by a moving optical-path module, thereby enabling its applications in actual situations. After acquiring a series of time-varying spectra in motion, the proposed method is used to analyze the spectral distribution range via Fourier transform. Compared with the traditional calibration method, the proposed method is more precise and the axial resolution of the system is improved by 0.34 μm. Thus, this method improves the imaging effect in actual biological tissue imaging.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TN247

DOI:10.3788/lop56.101103

所属栏目:成像系统

基金项目:科技部国家重点研发计划 “重大科学仪器设备开发” 重点专项(2017YFF0107100)、国家自然科学基金(61275198,60978069)

收稿日期:2018-10-12

修改稿日期:2018-12-05

网络出版日期:2018-12-20

作者单位    点击查看

曹文娟:南京理工大学电子工程与光电技术学院, 江苏 南京 210094
高万荣:南京理工大学电子工程与光电技术学院, 江苏 南京 210094
伍秀玭:南京理工大学电子工程与光电技术学院, 江苏 南京 210094

联系人作者:高万荣(wgao@njust.edu)

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引用该论文

Cao Wenjuan,Gao Wanrong,Wu Xiupin. Spectral Calibration Method for Spectral Domain Coherence Tomography with Ultra-Wideband Light Source[J]. Laser & Optoelectronics Progress, 2019, 56(10): 101103

曹文娟,高万荣,伍秀玭. 超宽带光源频谱域相干层析术的光谱标定方法[J]. 激光与光电子学进展, 2019, 56(10): 101103

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