Hivatkozási szám

MSZ EN 61290-11-2:2005

Dokumentumazonosító

138619

Cím

Optikai erősítők. Vizsgálati módszerek. 11-2. rész: Polarizációs módusú diszperziós paraméter. Poincaré-gömbanalízises módszer (IEC 61290-11-2:2005)

Angol cím

Optical amplifiers. Test methods. Part 11-2: Polarization mode dispersion parameter. Poincaré sphere analysis method (IEC 61290-11-2:2005)

Alkalmazási terület

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. NOTE All numerical values followed by (‡) are suggested values for which the measurement is assured. Other values may be acceptable but should be verified.

ICS

33.180.30 Optikai erősítők

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2005-11-01

Forrás

idt EN 61290-11-2:2005; idt IEC 61290-11-2:2005

Előd

Utód

Módosítás

SZK-közlemények

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A szabvány

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