摘要
近年来，由于码分多址（ＣＤＭＡ）技术在卫星通信和移动通信中的广泛应用，使其越来越受到人们的重视。国外已有不少人正致力于将ＣＤＭＡ技术与光纤通信技术相结合，并由此形成了一种新的通信方式——光纤ＣＤＭＡ通信。目前国内尚无此方面研究成果的报道。本文首次对ＣＤ－ＭＡ技术在光纤通信中的一些可能的应用进行了一个初步的研究。并对光纤ＣＤＭＡ系统结构提出了自己的见解。
This paper theoretically analyses the influence of the linear birefringence in optical fiber on Sagnac current sensing by means of Jones Matrix.It is shown that the allowable linear birefringence(internal and external) of the fiber should not be more than about 10 -6 rad/m in order to reach the stability at which the current sensor could be practically used.Moreover this kind of influence could be tremendously reduced by rotating one input port of the sagnac loop so that the local coordinates at the two ports being perpendicular to each other.
出处
《光纤与电缆及其应用技术》
1997年第4期7-11,共5页
Optical Fiber & Electric Cable and Their Applications
关键词
光纤通信
码分多址
局域网
Current sensing Sagnac effect Linear birefringence Jones Matrix Polarization
