光学相干层析成像系统中双通快速扫描光学延迟线的数值分析  

Numerical Analysis of Double Pass Rapid Scanning Optical Delay Line in Optical Coherence Tomography

作　　者：黄丽娜[1] 俞晓峰[1] 丁志华[1] 

机构地区：[1]浙江大学光电系现代光学仪器国家重点实验室,杭州310027

出　　处：《光子学报》2005年第11期1663-1665,共3页Acta Photonica Sinica

基　　金：国家自然科学基金(60378041);浙江省自然科学基金(Z603003);博士点基金(20030335099);霍英东青年教师基金(91010);光子技术福建省重点实验室开放课题(FP0404);浙江大学211学科建设项目

摘　　要：以matlab为工具,详尽分析双通快速扫描光学延迟线在最佳耦合条件下的光束传输与分布,为双通快速扫描光学延迟线的设计、元件选择和系统调整提供理论依据.得出离焦距离Δf=1μm和Δf=578μm两个理论上的最佳耦合点.但就实际光路调试来看,离焦距离Δf=1μm为此系统的最佳耦合点.Double pass Rapid Scanning Optical Delay Line （RSOD）, as an axial scanning method widely which is used in Optical Coherence Tomography （OCT）, is one of key technologies in developing OCT. This thesis was deeply analyzed beam transmission and beam distribution in RSOD under the condition of coupling optimization using matlab, thus increased theoretic arguments for RSOD design, elements choice and system adjustment. The two defocus distances △f=1/μm and △f=578μm were got as theoretic coupling optimization, but concerning the practical adjustment, the defocus distance △f=1μm was better. So △f=1μm was the coupling optimization of RSOD.

关 键 词：生物医学成像 光学相干层析成像 快速扫描光学延迟线 最佳耦合 

分 类 号：Q631[生物学—生物物理学]