標準號：IEC/TR 61282-3-2006
中文標準名稱：纖維光學通信系統設計指南.第3部分:偏振模散射計算
英文標準名稱：Fibre optic communication system design guides - Part 3: Calculation of polarisation mode dispersion
標準類型：M33
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：M33
國際標準分類號：33.180.01
適用范圍：This part of IEC 61282 provides guidelines for the calculation of polarization mode dispersion(PMD) in fibre optic systems to accommodate the statistical variation of PMD and differentialgroup delay (DGD) in optical fibre cables and components.This technical report describes methods for calculating PMD due to optical fibre cables andoptical components in an optical link. The calculations are compatible with those documentedin the outdoor optical fibre cable specification IEC 60794-3. Example calculations are given toillustrate the methods for calculating total optical link PMD from typical cable and opticalcomponent data. The calculations include the statistics of concatenating individual optical fibrecables drawn from a specified distribution. The calculations assume that all components havePMD equal to the maximum specified value.The calculations described cover first order PMD only. The following subject areas arecurrently beyond the scope of this technical report, but remain under study:– calculation of second and higher order PMD;– accommodation of components with polarization dependent loss (PDL) – if it is assumedthat PDL is negligible in optical fibre cables;– system impairments (power penalty) due to PMD;– interaction with chromatic dispersion and other nonlinear effects.Measurement of PMD is beyond the scope of this technical report. Methods of measurement ofPMD of optical fibre and cable are given in IEC 60793-1-48. The measurement of opticalamplifier PMD is in IEC 61290-11-1. The measurement of component PMD is inIEC 61300-3-32. Measurement of link PMD is given in 61280-4-4. A general theory andguidance on measurements is given in 61282-9.