Measurement of local beat length and differential group delay in installed single-mode fibers

被引：33
作者：
Galtarossa, A [1 ]
Palmieri, L
Pizzinat, A
Schiano, M
Tambosso, T
机构：
[1] Univ Padua, DEI, I-35131 Padua, Italy
[2] Ctr Studi & Lab Telecomun SpA, I-10148 Turin, Italy
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2000年 / 18卷 / 10期
关键词：
beat length; birefringence; differential group delay (DGD); polarization mode dispersion (PMD);
D O I：
10.1109/50.887190
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present beat length and polarization mode dispersion (PMD) measurements performed on installed fibers. Results regard three different kinds of fibers: standard step-index, dispersion shifted and nonzero dispersion (NZD), After a historical comparison with standard differential group delay measurement collected four years ago on the same fibers, we perform a spatial-resolved measurement of the beat length by analyzing the state of polarization of the backscattered field. We compare PMD properties of different fibers and calculate the statistical distribution of the beat length. The differential group delay (DGD) and the beat length statistics depend strongly on fiber type and on fiber position along the link. The influence of the beat length on the DGD is also discussed.
引用
收藏
页码：1389 / 1394
页数：6
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