公开(公告)号：US5881185A

公开(公告)日：1999-03-09

申请号：US697050

申请日：1996-08-19

申请人： John R. Feth ,  Joseph F. Straceski ,  Isaac R. Jessop

发明人： John R. Feth ,  Joseph F. Straceski ,  Isaac R. Jessop

IPC分类号： G01C19/72 ,  G02B5/30 ,  G02B6/024 ,  G02B6/26 ,  G02B6/34 ,  G02B6/42 ,  G02B6/00

CPC分类号： G02B6/4246 ,  G02B6/264 ,  G02B6/274 ,  G02B6/2786 ,  G02B6/4206

摘要： Aligned birefringent fiber segments are reliably and efficiently rotated approximately 45.degree. relative to each other until the extinction ratio measurement at the output is approximately 0 dB, then birefringent fibers are fused. To determine the extinction ratio, a Wollaston analyzer is placed at the output of the birefringent fiber. Photodetectors placed on each output of the Wollaston analyzer, substantially simultaneously measure the output intensity of each propagation axis.

摘要翻译： 对准的双折射光纤段相对于彼此可靠且有效地旋转大约45度，直到输出处的消光比测量值大约为0dB，则双折射光纤被熔化。 为了确定消光比，将Wollaston分析仪置于双折射光纤的输出处。 放置在Wollaston分析仪的每个输出上的光电检测器基本上同时测量每个传播轴的输出强度。