Study of the stability of polarization mode dispersion in fibre
Shum Pinga, Fu Song-Nianb, Dong Huib, Wu Chong-Qingc, Liu Hai-Taoc
a School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore; b School of Electronic and Engineering Information, Northern Jiaotong University, Beijing 100044, China; c School of Science, Northern Jiaotong University, Beijing 100044, China
Abstract Polarization mode dispersion (PMD) is the ultimate limitation to high bit-rate fibre communication system. The stability of PMD is very important to its measurement and compensation. This paper puts forward a method to measure the stability of PMD by measuring the stability of the state of polarization (SOP) and introduces the conception of time evolution vector (TEV) of SOP. We observe the fact that the regularity of the principal state of polarization changing with time is the same as other SOPs', if we neglect the dependence of TEV on wavelength. We also measure the SOP's stability of some fibres with different lengths, and obtain results of PMD changing with time.
Received: 13 May 2003
Revised: 01 July 2003
Published: 16 March 2005