IEC 61290-11-1-2008
光学放大器.试验方法.第11-1部分:偏振模式分散参数.琼斯矩阵特征分析法(JME)

Optical amplifier - Test methods - Part 11-1: Polarization mode dispersion parameter - Jones matrix eigenanalysis (JME)

标准号

IEC 61290-11-1-2008

发布日期

2008年04月

实施日期

废止日期

无

中国标准分类号

M33

国际标准分类号

33.180.30

发布单位

国际电工委员会

引用标准

IEC/TR 61282-9 IEC/TR 61292-5

被代替标准

IEC 86C/752/CDV-2007 IEC 61290-11-1-2003

适用范围

This part of IEC 61290 applies to all commercially available optical amplifiers (OAs), including optical fibre amplifiers (OFAs) using active fibres, semiconductor optical amplifiers (SOAs), and planar waveguide optical amplifiers (PWOAs). Polarization-mode dispersion (PMD) causes an optical pulse to spread in the time domain. This dispersion could impair the performance of a telecommunications system. The effect can be related to differential group velocity and corresponding arrival times of different polarization components of the signal. For a narrowband source, the effect can be related to a differential group delay (DGD) between pairs of orthogonally polarized principal states of polarization (PSP). Other information about PMD may be found in IEC 61282-9 in general and in IEC 61292-5 on OAs in particular. This test method describes a procedure for measuring the PMD of OAs. The measurement result is obtained from the measurement of the normalized Stokes parameters at two closely spaced wavelengths. The test method described herein requires a polarized signal at the input of the polarimeter with a degree of polarization (DOP) of at least 25 %. Although the test source is highly polarized, the DOP at the output of the OA is reduced by amplified spontaneous emission (ASE). Annex A analyses the impact of ASE on the DOP. In order to assure an accurate measurement, the DOP is measured as part of the measurement procedure. The method described herein has been shown to be immune to polarization-dependent gain (PDG) and polarization dependent loss (PDL) up to approximately 1 dB. Although the Jones matrix eigenanalysis (JME) test method is in principle also applicable to unpumped (that is, unpowered) OAs, the JME technique in this standard applies to pumped (that is, powered) OAs only.

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