What is PD IEC/TR 61282-3- Fibre optic interconnecting communication system designing about?
PD IEC/TR 61282-3 is the third part of an international multi-series standard that covers guidelines to design fibre optic communication systems.
PD IEC/TR 61282-3 provides guidelines for the calculation of polarization mode dispersion (PMD) in fibre optic systems to accommodate the statistical variation of PMD and differential group delay (DGD) in optical fibre cables and components.
PD IEC/TR 61282-3 is a technical report that describes methods for calculating PMD due to optical fibre cables and optical components in an optical link. The calculations are compatible with those documented in the outdoor optical fibre cable specification IEC 60794-3.
PD IEC/TR 61282-3 illustrates the methods for calculating total optical link PMD from typical cable and optical component data with example calculations. The calculations include the statistics of concatenating individual optical fibre cables drawn from a specified distribution. The calculations state that all components have PMD equal to the maximum specified value.
Note 1: The calculations described cover first-order PMD only.
Note 2: Measurement of PMD is beyond the scope of PD IEC/TR 61282-3. Methods of measurement of PMD of optical fibre and cable are given in IEC 60793-1-48.
Note 3: The following subject areas are currently beyond the scope of PD IEC/TR 61282-3, but remain under study:
- Calculation of second and higher-order PMD
- Accommodation of components with polarization-dependent loss (PDL) – if it is assumed that PDL is negligible in optical fibre cables
- System impairments (power penalty) due to PMD
- Interaction with chromatic dispersion and other nonlinear effects
Who is PD IEC/TR 61282-3- Fibre optic interconnecting communication system designing for?
PD IEC/TR 61282-3 on fibre optic communication system designing is relevant to:
- Manufacturers of fibre optic communication system devices
- Designers of fibre optic communication system devices
- Fibre optic technicians
- Fibre optic installers
- Testing authorities of polarization mode dispersion
Why should you use PD IEC/TR 61282-3- Fibre optic interconnecting communication system designing?
Polarization mode dispersion (PMD) refers to the spreading of an optical pulse due to polarization-related anomalies. PMD in cabled fibres and optical components causes an optical pulse to spread in the time domain, which may impair the performance of a fibre optic telecommunication system, as defined in IEC 61281-1.
PD IEC/TR 61282-3 sets the framework for the calculation of polarization mode dispersion (PMD) values of randomly varying elements that can be added in quadrature, as well as a basis for concluding that the Maxwell distribution is appropriate to describe the distribution of DGD values. PD IEC/TR 61282-3 also describes the concatenation in terms of the addition of rotated polarization dispersion vectors (pdv) which are, for randomly varying components, assumed to be random in magnitude and direction over both time and wavelength. PD IEC/TR 61282-3 provides guidance on the calculation of cabled fibre PMD as PMD is a stochastic attribute that varies in magnitude randomly over time and wavelength.
Overall, PD IEC/TR 61282-3 is useful as it provides guidance on the calculation of link polarization mode dispersion for fibre optic communication system design which can be helpful for your business.
