Norm

NEN-EN-IEC 61290-11-2:2005 en;fr

Optical amplifiers - Test methods - Part 11-2: Polarization mode dispersion parameter - Poincaré sphere analysis method

41,55

Over deze norm

Status Definitief
Aantal pagina's 25
Commissie Fibre optic communications
Gepubliceerd op 01-05-2005
Taal Engels, Frans
This part of IEC 61290 applies to all commercially available optical amplifiers (OAs) including optical fibre amplifiers (OFAs) using active fibres and semiconductor optical amplifiers (SOAs) using semiconductor gain media. 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). This test method describes a procedure for measuring the PMD of OAs. The measurement result is obtained from the measurement of the normalised Stokes parameters at two closely spaced wavelengths. The mathematical basis together with an example of calculation for the Poincaré sphere analysis (PSA) method to calculate PMD is provided in the technical report IEC 61292-5. 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 PSA, in practice, is applicable to unpumped (that is, unpowered) OAs, the PSA technique in this standard applies to pumped (that is, powered) OAs only.

Details

ICS-code 33.180.30
Nederlandse titel Optical amplifiers - Test methods - Part 11-2: Polarization mode dispersion parameter - Poincaré sphere analysis method
Engelse titel Optical amplifiers - Test methods - Part 11-2: Polarization mode dispersion parameter - Poincaré sphere analysis method

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