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    Fiber optic imaging endoscope interferometer with at least one faraday rotator
    72.
    发明授权
    Fiber optic imaging endoscope interferometer with at least one faraday rotator 失效
    具有至少一个法拉第旋转器的光纤成像内窥镜干涉仪

    公开(公告)号：US06501551B1

    公开(公告)日：2002-12-31

    申请号：US09414293

    申请日：1999-10-05

    申请人： Guillermo Tearney ,  Stephen A. Boppart ,  Brett E. Bouma ,  Mark Brezinski ,  Eric A. Swanson ,  James G. Fujimoto

    发明人： Guillermo Tearney ,  Stephen A. Boppart ,  Brett E. Bouma ,  Mark Brezinski ,  Eric A. Swanson ,  James G. Fujimoto

    IPC分类号： G01B902

    CPC分类号： G11B7/005 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/00183 ,  A61B3/1005 ,  A61B3/102 ,  A61B5/0064 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/445 ,  A61B5/6852 ,  A61B2562/0242 ,  B82Y15/00 ,  G01B9/02002 ,  G01B9/02004 ,  G01B9/02007 ,  G01B9/0201 ,  G01B9/0205 ,  G01B9/02091 ,  G01B11/00 ,  G01B11/026 ,  G01B11/12 ,  G01B11/2441 ,  G01B2290/65 ,  G01B2290/70 ,  G01J1/00 ,  G01N21/4795 ,  G11B7/127 ,  G11B7/24 ,  G11B2007/0013 ,  H01S5/141

    摘要： An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elongated housing defining a bore; a rotatable single mode optical fiber having a proximal end and a distal end positioned within and extending the length of the bore of the elongated housing; and an optical system coupled to the distal end of the rotatable single mode optical fiber, positioned to transmit the optical radiation from the single mode optical fiber to the structure and to transmit reflected optical radiation from the structure to the single mode optical fiber. The system further includes a beam divider dividing the optical radiation from the optical radiation source along the first optical path to the reflector and along the second optical path; and a detector positioned to receive reflected optical radiation from the reflector transmitted along the first optical path and reflected optical radiation transmitted from the structure along the second optical path. The detector generates a signal in response to the reflected optical radiation from the reference reflector and the reflected optical radiation from the structure, and a processor generating a image of the structure in response to the signal from the detector. The system provides both rotational and longitudinal scanning of an image.

    摘要翻译： 用于执行光学相干断层摄影的成像系统包括光辐射源; 参考光学反射器; 通向参考光反射器的第一光路; 以及耦合到内窥镜单元的第二光路。 内窥镜单元优选地包括限定孔的细长壳体; 可旋转的单模光纤，其具有定位在所述细长壳体的所述孔的长度内并延伸所述细长壳体的所述孔的长度的近端和远端; 以及耦合到可旋转单模光纤的远端的光学系统，定位成将光辐射从单模光纤传输到结构，并将反射的光辐射从结构传输到单模光纤。 该系统还包括一个光束分配器，将沿着第一光路的光辐射源的光辐射分成沿着第二光路; 以及检测器，其被定位成接收来自沿着第一光路传输的反射器的反射光辐射以及沿着第二光路从结构传输的反射光辐射。 检测器响应于来自参考反射器的反射光辐射和来自结构的反射光辐射产生信号，以及响应于来自检测器的信号产生结构图像的处理器。 该系统提供图像的旋转和纵向扫描。