Acta Photonica Sinica, Volume. 44, Issue 2, 206004(2015)
Automatic Aligning Method of Panda Polarization Maintaining Fiber with High Accuracy
The detection and alignment of polarization axis is a key technology in PMF’s application.In order to improve the accuracy of the end face detection of polarization axis,a sub-pixel edge extraction method based on surface fitting was proposed to improve the accuracy and the normal distribution of the detection result was used to improve the precision.Based on the normal distribution of the detection result,a aligning method based on normal distribution was put forward.An automatic aligning system was established.The experiment shows the sub-pixel edge extraction method can decrease the error by 45% and the ellipse fitting can reduce the error by 15%.The alignment experiment figures out that the bias of aligning method based on probability is less than 0.1°.
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LIU Zhen-hua, FENG Di, HUANG Huai-bo, YANG De-wei, SONG Ning-fang. Automatic Aligning Method of Panda Polarization Maintaining Fiber with High Accuracy[J]. Acta Photonica Sinica, 2015, 44(2): 206004
Category: Fiber Optics and Optical Communications
Received: Jun. 3, 2014
Accepted: --
Published Online: Feb. 15, 2015
The Author Email: Zhen-hua LIU (hua962464@126.com)