公开(公告)号：US07359584B2

公开(公告)日：2008-04-15

申请号：US11644640

申请日：2006-12-22

申请人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

发明人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

IPC分类号： G02B6/26

CPC分类号： G02B6/272 ,  G02B5/001 ,  G02B5/3083 ,  G02B6/2706 ,  G02B6/2773 ,  G02B6/34 ,  G02B27/283 ,  H04B10/25

摘要： The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space paths in the device offers the dual advantages of a reduced component count and simplified alignment. In an exemplary device having a first and second waveguides, a birefringent optical system defines bi-directional, polarization-dependent free-space paths. One of the bidirectional, polarization-dependent, free-space paths couples at least the first waveguide to the second waveguide. The birefringent optical system includes at least one prism for bending one of the polarization-dependent paths in a clockwise direction and one of the polarization-dependent paths in a counterclockwise direction.

摘要翻译： 本发明涉及一种用于光纤系统的设备，其可以是使用导波光学部件的通信系统，感测系统或其他系统。 降低连接波导和自由空间路径所需的透镜数量提供了减少组件数量和简化对准的双重优点。 在具有第一和第二波导的示例性装置中，双折射光学系统限定双向偏振相关的自由空间路径。 双向，偏振相关的自由空间路径之一至少将第一波导耦合到第二波导。 双折射光学系统包括至少一个棱镜，用于沿顺时针方向弯曲偏振相关路径中的一个并且沿逆时针方向弯曲偏振相关路径中的一个。

公开(公告)号：US07206479B2

公开(公告)日：2007-04-17

申请号：US10846084

申请日：2004-05-14

申请人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

发明人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

IPC分类号： G02B6/26

CPC分类号： G02B6/272 ,  G02B5/001 ,  G02B5/3083 ,  G02B6/2706 ,  G02B6/2773 ,  G02B6/34 ,  G02B27/283 ,  H04B10/25

摘要： The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space paths in the device offers the dual advantages of a reduced component count and simplified alignment. In an exemplary device having a first and second waveguides, a birefringent optical system defines bi-directional, polarization-dependent free-space paths. One of the bi-directional, polarization-dependent, free-space paths couples at least the first waveguide to the second waveguide. The birefringent optical system includes at least one prism for bending one of the polarization-dependent paths in a clockwise direction and one of the polarization-dependent paths in a counterclockwise direction.

摘要翻译： 本发明涉及一种用于光纤系统的设备，其可以是使用导波光学部件的通信系统，感测系统或其他系统。 降低连接波导和自由空间路径所需的透镜数量提供了减少组件数量和简化对准的双重优点。 在具有第一和第二波导的示例性装置中，双折射光学系统限定双向偏振相关的自由空间路径。 双向，偏振相关的自由空间路径之一至少将第一波导耦合到第二波导。 双折射光学系统包括至少一个棱镜，用于沿顺时针方向弯曲偏振相关路径中的一个并且沿逆时针方向弯曲偏振相关路径中的一个。

公开(公告)号：US06741764B2

公开(公告)日：2004-05-25

申请号：US10010815

申请日：2001-11-13

申请人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

发明人： Pingfan P. Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Barry Zhang

IPC分类号： G02B600

CPC分类号： G02B6/272 ,  G02B5/001 ,  G02B5/3083 ,  G02B6/2706 ,  G02B6/2773 ,  G02B6/34 ,  G02B27/283 ,  H04B10/25

摘要： The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space paths in the device offers the dual advantages of a reduced component count and simplified alignment. In an exemplary device having a first and second waveguides, a birefringent optical system defines bi-directional, polarization-dependent free-space paths. One of the bidirectional, polarization-dependent, free-space paths couples at least the first waveguide to the second waveguide. The birefringent optical system includes at least one prism for bending one of the polarization-dependent paths in a clockwise direction and one of the polarization-dependent paths in a counterclockwise direction.

摘要翻译： 本发明涉及一种用于光纤系统的设备，其可以是使用导波光学部件的通信系统，感测系统或其他系统。 降低连接波导和自由空间路径所需的透镜数量提供了减少组件数量和简化对准的双重优点。 在具有第一和第二波导的示例性装置中，双折射光学系统限定双向偏振相关的自由空间路径。 双向，偏振相关的自由空间路径之一至少将第一波导耦合到第二波导。 双折射光学系统包括至少一个棱镜，用于沿顺时针方向弯曲偏振相关路径中的一个并且沿逆时针方向弯曲偏振相关路径中的一个。

公开(公告)号：US20070189657A1

公开(公告)日：2007-08-16

申请号：US11644640

申请日：2006-12-22

申请人： Pingfan Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Zhang

发明人： Pingfan Wu ,  Liang-Ju Lu ,  Zhicheng Yang ,  Boying Zhang

IPC分类号： G02B6/26

CPC分类号： G02B6/272 ,  G02B5/001 ,  G02B5/3083 ,  G02B6/2706 ,  G02B6/2773 ,  G02B6/34 ,  G02B27/283 ,  H04B10/25

摘要： The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space paths in the device offers the dual advantages of a reduced component count and simplified alignment. In an exemplary device having a first and second waveguides, a birefringent optical system defines bidirectional, polarization-dependent free-space paths. One of the bidirectional, polarization-dependent, free-space paths couples at least the first waveguide to the second waveguide. The birefringent optical system includes at least one prism for bending one of the polarization-dependent paths in a clockwise direction and one of the polarization-dependent paths in a counterclockwise direction.

摘要翻译： 本发明涉及一种用于光纤系统的设备，其可以是使用导波光学部件的通信系统，感测系统或其他系统。 降低连接波导和自由空间路径所需的透镜数量提供了减少组件数量和简化对准的双重优点。 在具有第一和第二波导的示例性装置中，双折射光学系统限定双向的，偏振相关的自由空间路径。 双向，偏振相关的自由空间路径之一至少将第一波导耦合到第二波导。 双折射光学系统包括至少一个棱镜，用于沿顺时针方向弯曲偏振相关路径中的一个并且沿逆时针方向弯曲偏振相关路径中的一个。

公开(公告)号：US06992777B2

公开(公告)日：2006-01-31

申请号：US10010646

申请日：2001-11-13

申请人： Xiaofeng Han ,  Boying Barry Zhang ,  Zhicheng Yang

发明人： Xiaofeng Han ,  Boying Barry Zhang ,  Zhicheng Yang

IPC分类号： G01B9/02

CPC分类号： G01B9/02024 ,  G01B9/02056 ,  G01B2290/70

摘要： An interferometer uses birefringent elements for splitting and combining beams of orthogonal polarization, and for changing the relative phase between the orthogonally polarized beams. A polarization sensitive detector is used to detect a fringe pattern whose periodicity is dependent on the relative optical paths traversed by the orthogonally polarized beams. In an embodiment of the invention, a birefringent beam splitter has an input path and first and second output paths. A birefringent beam combiner has first and second input paths and an output path, the first and second input paths of the birefringent beam combiner aligned respectively with the first and second output paths of the birefringent beam splitter. A polarization sensitive detector is disposed on the output path of the birefringent beam combiner to detect the periodicity of the fringe pattern.