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1. 发明授权

US07433046B2 Patterned spinning disk based optical phase shifter for spectral domain optical coherence tomography 失效
标题翻译：用于光谱相干层析成像的基于旋转圆盘的光学移相器
公开(公告)号：US07433046B2
公开(公告)日：2008-10-07
申请号：US10933795
申请日：2004-09-03
申请人： Matthew J. Everett , Scott A. Meyer , Yan Zhou
发明人： Matthew J. Everett , Scott A. Meyer , Yan Zhou
IPC分类号： G01B9/02
CPC分类号： A61B3/102 , A61B3/1005 , G01B9/02012 , G01B9/02044 , G01B9/02049 , G01B9/02069 , G01B9/02091 , G01B2290/35
摘要： A low cost patterned spinning disk is disclosed for achieving relatively rapid discrete optical phase shifts for an optical beam. The invention is particularly useful in a spectral domain optical coherence tomography system. The disk contains stepped patterns of different heights and/or refractive index distribution such that as it spins, an optical beam passing through or being reflected by the disk will experience different discrete optical phase delays. The disk can be operated as a phase shifter or it can be operated in synchronization with an intensity modulating chopper disk or a direct intensity modulation of the light source. The disk can also contain intensity modulating patterns such that both phase shifting and intensity modulation can be achieved at the same time. Various possible methods are also disclosed for the fabrication of the disk.
摘要翻译：公开了一种低成本图案旋转盘，用于实现光束的相对快速的离散光学相移。本发明在频域光学相干断层摄影系统中特别有用。盘包含不同高度和/或折射率分布的阶梯图案，使得当其旋转时，通过或被盘反射的光束将经历不同的离散光学相位延迟。磁盘可以作为移相器来操作，或者可以与强度调制斩波盘同步操作，也可以与光源进行直接强度调制。磁盘还可以包含强度调制模式，使得可以同时实现相移和强度调制。还公开了用于制造盘的各种可能的方法。

2. 发明授权

US07388672B2 High efficiency balanced detection interferometer 有权
标题翻译：高效平衡检测干涉仪
公开(公告)号：US07388672B2
公开(公告)日：2008-06-17
申请号：US11264871
申请日：2005-11-02
申请人： Yan Zhou , Matthew J. Everett , Martin Hacker
发明人： Yan Zhou , Matthew J. Everett , Martin Hacker
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B2290/40
摘要： 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 3×3 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 2×2 couplers provides a similar function. The interferometer can be used with various OCT modalities including time-domain and frequency domain approaches.
摘要翻译：公开了一种配置用于光学相干域（OCT）反射系统的干涉仪。在优选实施例中，光的有效路由和平衡检测装置提供高的信噪比。在第一组实施例中，使用3x3耦合器沿独立的采样和参考路径分离光，并且还用于组合从那些路径返回的光并将受干扰的收集的光提供给检测系统。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。

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