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1.发明授权
公开(公告)号：US4775233A
公开(公告)日：1988-10-04
申请号：US865833
申请日：1986-05-22
CPC分类号： G01M11/35 , G02B6/3803 , G02B6/4259 , G02B6/4286 , G02B6/4289
摘要： In a method of measurement of light from an optical fiber, the optical fiber is bent in a semi-spherical shape. A light dispersing member is attached to the bent portion of the optical fiber. The light from the bent portion is measured through the light dispersing member.
摘要翻译： 在从光纤测量光的方法中，光纤被弯曲成半球形。 光分散构件附接到光纤的弯曲部分。 通过光分散构件测量来自弯曲部分的光。
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公开(公告)号：US5596441A
公开(公告)日：1997-01-21
申请号：US417679
申请日：1995-04-06
CPC分类号： H04B10/2572
摘要： An optical polarization controller comprises a polarization control element, a polarizer, a light divider and a photo-detector. The polarization control element rotates a plane of polarization of an Input signal light by a rotation angle in a predetermined rotational direction and outputs the result as a rotated signal light. The polarizer extracts a component of the rotated signal light having a predetermined plane of polarization and outputs the component as a polarized signal light. The light divider divides the polarized signal light into a plurality of polarized signal lights which have the same planes of polarization as the plane of the polarized light outputted by the polarizer. The photo-detector detects a level of one of the plurality of polarized signal lights and supplies a control signal indicating the level to the polarization control element. Under this control, the plane of polarization of the signal light outputted by the polarization control element is controlled so as to correspond to the plane of polarization of the light divider.
摘要翻译： 光偏振控制器包括偏振控制元件，偏振器，分光器和光检测器。 偏振控制元件使输入信号光的偏振面旋转预定旋转方向的旋转角度，并输出作为旋转信号光的结果。 偏振器提取具有预定偏振面的旋转信号光的分量，并将该分量输出为偏振信号光。 分光器将偏振信号光分成与偏振器输出的偏振光平面相同的偏振平面的多个偏振信号光。 光检测器检测多个偏振信号光之一的电平，并将指示该电平的控制信号提供给偏振控制元件。 在该控制下，由偏振控制元件输出的信号光的偏振面被控制成与分光器的偏振面对应。
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