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    • 9. 发明公开
    • HIGH EFFICIENCY BALANCED DETECTION INTERFEROMETER
    • 高效率平衡检测干涉仪
    • EP1817543A1
    • 2007-08-15
    • EP05804026.2
    • 2005-11-10
    • Carl Zeiss Meditec AG
    • ZHOU, YanEVERETT, Matthew J.HACKER, Martin
    • G01B9/02
    • G01B9/02091G01B2290/40
    • An interferometer configured for use in optical coherence domain (OCT) reflectometry systems is disclosed. In the preferred embodiments, efficient routing of light and a balanced detection arrangement provide a high signal to noise ratio. In a first set of embodiments, a 3x3 coupler is used to split light along separate sample and reference paths and also for combining light returning from those paths and supplying the interfered collected light to the detection system. In an alternate set of embodiments, a pair of cascaded 2x2 couplers provides a similar function. The interferometer can be used with various OCT modalities including time-domain and frequency domain approaches.
    • 公开了配置用于光学相干域(OCT)反射测量系统的干涉仪。 在优选实施例中,光的有效路由和平衡检测装置提供高信噪比。 在第一组实施例中,使用3×3耦合器沿着分离的样本路径和参考路径分离光,并且还用于组合从那些路径返回的光并将受干涉的收集光提供给检测系统。 在另一组实施例中,一对级联的2x2耦合器提供了类似的功能。 干涉仪可以与各种OCT模式一起使用,包括时域和频域方法。