What is PD IEC TR 61282-7 — Chromatic dispersion of optical fibres about?
PD IEC TR 61282-7 is an international standard that discusses the statistical calculation of chromatic dispersion for fibre optic communication systems.
PD IEC TR 61282-7 is a guideline providing methods of representing the process statistics of the chromatic dispersion of optical fibres and related components that may be combined in a link.
PD IEC TR 61282-7 provides methods to calculate the distribution statistics of concatenated links based on information on the distributions of different fibre or component populations.
Who is PD IEC TR 61282-7 — Chromatic dispersion of optical fibres for?
PD IEC TR 61282-7 on a chromatic dispersion of optical fibres is relevant to:
- Manufacturers of optical fibres
- Electrical engineers and electronics engineers
- Telecom industries
- Optical fibre installers
- Fibre optic system designers
Why should you use PD IEC TR 61282-7 — Chromatic dispersion of optical fibres?
Chromatic dispersion (ps/nm) is the derivative, with respect to wavelength, of the group delay (ps) induced by the spectral content of light propagating through an optical element or fibre. Chromatic dispersion is normally a function of wavelength and can be either positive (group delay increasing with wavelength) or negative (group delay decreasing with wavelength).
PD IEC TR 61282-7 outlines the test method to verify the characterisation of chromatic dispersion of optical fibres, as a function of wavelength for a given wavelength range. The presence of chromatic dispersion induces distortions in signals leading to bit errors depending on:
- Source spectral width
- Source chirp
- Bit period
- Distance
In addition, chromatic dispersion is interactive with the effects of non-linear optical effects and second-order polarization mode dispersion (PMD).
PD IEC TR 61282-7 sets an approach for characterisations of particular formulas, that gives an indication of the wavelength range, over which the formula applies. It gives measurements based either on fitting differential group delays (DGD) or by fitting the integral to the measured group delay.
PD IEC TR 61282-7 assists the user with the technique which is used to characterise the distribution of a single population of fibres as well as with all the necessary details of chromatic dispersion.
PD IEC TR 61282-7 is a design guide for fibre optic communication systems that can help you to expand your business globally.
