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Optical Coherence Tomography Probe Design for Reduced Artifact Generation and Manufacturability

机译:光学相干断层扫描探头设计,可减少伪像的产生和可制造性

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Many fiber based probes used in Optical Coherence Tomography (OCT) are comprised of a spacer, GRIN lens, fiber, and a microprism. This design form suffers from many material interfaces, which induce back reflections into the sample arm of the interferometer. With so many interfaces, these probes can produce artifacts in the system's imaging window. We present a design which has just two interfaces to minimize image artifacts. The two components of this design are the fiber endface and a reflective optic. With optimization, these two components can produce back reflections below -90dB which will minimize image artifacts. This will results in high fidelity imaging for medical diagnostics.
机译:光学相干断层扫描(OCT)中使用的许多基于光纤的探头由垫片,GRIN透镜,光纤和微棱镜组成。这种设计形式存在许多材料界面,这些界面会引起向后反射到干涉仪的样品臂中。通过如此众多的接口,这些探针会在系统的成像窗口中产生伪像。我们提出的设计只有两个接口可以最大程度地减少图像伪影。此设计的两个组件是光纤端面和反射光学元件。通过优化,这两个分量可以产生低于-90dB的背向反射,这将使图像伪影最小化。这将导致用于医疗诊断的高保真成像。

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