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Perspectives of optical scanning in OCT

机译：OCT中光学扫描的观点

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摘要

We present an overview of our contributions and directions of research in the domain of optical scanners, with regard to their perspectives of use in optical coherence tomography (OCT). The performances, advantages and drawbacks of the different types of scanning systems are summarized. Both 1-D and 2-D scanners for various applications in OCT, from swept source filters to flying the beam over the target are considered. We briefly present our developments of polygon mirror (PM) scanners. We study galvoscanners (GS) in order to increase their duty cycle in general and for high speed scanners in particular. The limitations in reaching such goals are discussed. Based on these advancements, 2-D scanners, I.e. the double GS and the PM+GS solutions are approached with regard to their optimum driving functions. The 2-D Risley prism scanner is also considered, as the best choice when compactness is of prime importance. We finally briefly discuss the tendency towards miniaturization and recent developments in MEMS scanners. A trade-off is thus accomplished between recent developments and requirements of scanning devices for OCT in order to achieve the most appropriate results for a certain application. The current and future tendencies in the field are discussed.
机译：我们就其在光学相干断层扫描（OCT）中使用的观点，概述了我们在光学扫描仪领域的贡献和研究方向。总结了不同类型的扫描系统的性能，优缺点。从扫掠源滤镜到将光束投射到目标上，都考虑了用于OCT各种应用的1-D和2-D扫描仪。我们简要介绍了多面镜（PM）扫描仪的发展。我们研究振镜扫描仪（GS），以提高它们的占空比，特别是对于高速扫描仪。讨论了实现这些目标的局限性。基于这些进步，二维扫描仪即双重GS和PM + GS解决方案均采用了最佳驱动功能。当紧凑性至关重要时，二维Risley棱镜扫描仪也被认为是最佳选择。最后，我们简要讨论了MEMS扫描仪的小型化趋势和最新发展。因此，在OCT扫描设备的最新发展和要求之间达成了一个折衷，以便为特定应用获得最合适的结果。讨论了该领域的当前和未来趋势。

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