Traceable Measurement of High Polarization Extinction Ratio Based on Machine Vision

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-09-10 DOI:10.1109/LPT.2024.3457167

Xiaojun Zhang;Xinpeng Shen;Feng Wang;Yonggui Yuan

引用次数: 0

Abstract

Based on the principle of white-light interference, the polarization-maintaining fiber (PMF) coaxial alignment device can realize the continuous and controllable generation of the polarization extinction ratio (PER) value by establishing the quantitative traceability relationship between PER value and PMF coaxial rotating angle

$\theta $

. The single-point PMF coaxial alignment rotation can generate a PER value of 0 dB ~ 80 dB. The PER value generated by the two-point superposition method can be doubled in theory. Arbitrary PER value calibration in the range of 0 dB ~ 100 dB is implemented by basing on machine vision to assist in aligning PMF to reduce the influence of the coupling point position error. The experimental result shows that the PMF coaxial alignment device with two-point superposition can generate any PER value from 0 dB ~ 100 dB through the auxiliary alignment by the Extremal Variances Sum Method of linear detection.

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基于机器视觉的高偏振消光比可追溯测量

基于白光干涉原理，偏振维持光纤（PMF）同轴对准装置通过建立偏振消光比（PER）值与PMF同轴旋转角度$\theta $之间的定量溯源关系，可实现偏振消光比（PER）值的连续可控生成。单点PMF同轴对准旋转可生成0 dB ~ 80 dB的PER值。两点叠加法产生的 PER 值理论上可以翻倍。基于机器视觉实现了 0 dB ~ 100 dB 范围内的任意 PER 值校准，以辅助对准 PMF，减少耦合点位置误差的影响。实验结果表明，采用两点叠加法的 PMF 同轴对准装置可通过线性检测的极差求和法辅助对准，生成 0 dB ~ 100 dB 范围内的任意 PER 值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.