公开(公告)号：US06621067B2

公开(公告)日：2003-09-16

申请号：US09796796

申请日：2001-03-02

申请人： Gang He ,  François Babin ,  Martin Tremblay ,  Marc Breton ,  Steeve Potvin ,  Gregory Walter Schinn

发明人： Gang He ,  François Babin ,  Martin Tremblay ,  Marc Breton ,  Steeve Potvin ,  Gregory Walter Schinn

IPC分类号： G02F101

CPC分类号： H01L31/0203 ,  G02B6/4204 ,  G02B6/4292 ,  H01L31/02325

摘要： A photodetector device comprising a photosensitive detector (12; 96) and one or more interfaces (20′, 20″, 28, 98) between dissimilar media is configured so that a light beam (LB) for detection will pass through the interface(s) along a beam axis that is not normal to the interface(s). The deviation (&thgr;) from the normal will be such that polarization dependent transmission introduced at the interface(s) will compensate for inherent polarization dependency of the detector (12; 96). The deviation may be achieved by inclining the interface(s) relative to a predetermined direction along which the light beam will be incident. Where the photosensitive detector is in a housing (84) with a window (20) through which the light beam enters the housing, the housing can be tilted. In such as case, there are three interfaces, one (28; 98) at the surface of the detector (12; 96), and one at each surface (20′, 20″) of the window (20). Alternatively, the detector surface and/or the window could be tilted. Where a pigtail fiber (116) is permanently attached to the photodetector device to input the light beam through an interposed lens (106), the end of the pigtail fiber may be offset laterally from the lens optical axis (LOA) so that the beam axis deviates from the normal by such an angle that the resulting polarization dependent transmission (PDT) substantially corrects for polarization dependent response (PDR) of the photosensitive detector. An end facet of the pigtail fiber, the lens, and/or the window may be inclined so that they are not perpendicular to the propagation direction of the light beam so as to reduce interference and backreflection effects.

摘要翻译： 包括光敏检测器（12; 96）和不同介质之间的一个或多个接口（20'，20“，28,98）的光检测器设备被配置为使得用于检测的光束（LB）将通过接口 s）沿着不垂直于接口的波束轴。 与正常的偏差（θ）将使得在界面处引入的偏振相关传输将补偿检测器（12; 96）的固有偏振依赖性。 可以通过使界面相对于光束入射的预定方向倾斜来实现偏差。 在光敏检测器位于具有窗口（20）的壳体（84）中，光束通过该窗口进入壳体，壳体可以倾斜。 在这种情况下，在检测器（12; 96）的表面处有三个界面，一个（28; 98），一个在窗口（20）的每个表面（20'，20“）处。 或者，检测器表面和/或窗口可以倾斜。 在猪尾纤维（116）永久地附接到光电检测器装置以通过中介透镜（106）输入光束的情况下，猪尾纤维的端部可以从透镜光轴（LOA）侧向偏移，使得光束轴线 偏离正常，使得所得到的偏振相关透射（PDT）基本上校正光敏检测器的偏振相关响应（PDR）。 引线纤维，透镜和/或窗口的端面可以倾斜，使得它们不垂直于光束的传播方向，以便减少干涉和背反射效应。

公开(公告)号：US06612750B1

公开(公告)日：2003-09-02

申请号：US09138393

申请日：1998-08-24

申请人： Stephen Vincent Bull ,  Steeve Potvin

发明人： Stephen Vincent Bull ,  Steeve Potvin

IPC分类号： G02B638

CPC分类号： G02B6/3825 ,  G02B6/3894

摘要： An adapter for receiving optical fiber connectors, of the type having an inner part suitable for receiving an internal connector carrying an internal optical fiber having an end ferrule, and having an outer part suitable for receiving an external connector having an external optical fiber with an end ferrule, is made suitable for use with different external connectors by having the outer part readily separable from the inner part. The parts have complementary engaging surfaces and cooperating engaging means which lock the two parts together upon relative rotation of one of the parts relative to the other through about a right angle. The usual alignment sleeve is carried by the outer part, and when this part has been separated from the inner part the internal fiber ferrule is accessible for cleaning. A further feature of the invention is a cap which automatically closes over the outer end of the adapter, upon removal of the outer connector, both to protect the interior fiber end ferrule from contamination, and to protect a user's eyes from laser light.

摘要翻译： 一种用于接收光纤连接器的适配器，该适配器具有内部部分，该内部部分适合于接收携带具有端部套圈的内部光纤的内部连接器，并且具有外部部分，该外部部分适于接收具有端部的外部光纤的外部连接器 套管通过使外部部件容易与内部分离而适合于与不同的外部连接器一起使用。 这些部件具有互补的接合表面和配合的接合装置，它们通过一个直角相对于另一个部件相对旋转而将两个部件锁定在一起。 通常的对齐套筒由外部部件承载，当该部件与内部部件分离时，内部光纤套圈可以进行清洁。 本发明的另一个特征是在去除外部连接器时自动关闭适配器的外端的盖子，以防止内部光纤端头套圈免受污染，并且保护用户的眼睛免受激光的影响。