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IEC/TR 61282-8

Fibre optic communication system design guides – Part 8: Calculating dispersion penalty from measured time-resolved chirp data

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Organization: IEC
Publication Date: 1 November 2006
Status: active
Page Count: 26
ICS Code (Fibre optic systems in general): 33.180.01
scope:

This part of IEC 61282 provides definitions of dispersion penalty and other related penalties. It describes the direct measurement of these penalties using a BER test set and the calculation of the penalties from time-resolved chirp (TRC) data. Annex A provides the theory for power penalty calculations.

The calculations are valid for all types of single longitudinal mode (SLM) laser transmitters intended for use in telecommunications applications at data rates of 2,5 Gbit/s and higher with NRZ modulation format. These include but are not limited to directly modulated format. These include but are not limited to directly modulated DFB lasers, DFB lasers with integrated electro-absorption modulators, and DFB lasers with external MachZehnder modulators. This technique is not suitable for multiple longitudinal mode (MLM) lasers or LEDs.

Chromatic dispersion induced power penalty  values in this technical report are characteristics of the transmitter, which is considered to be the device-under-test (DUT). Other power penalty sources, such as nonlinear effects and amplifier noise are not covered by this document.

Since dispersion penalty for a transmission link depends on the transmitter, receiver and fibre, the dispersion penalty parameter for a transmitter is based on a specified fibre dispersion and receiver characteristic, which should be reported with the test results.

Document History

IEC/TR 61282-8
November 1, 2006
Fibre optic communication system design guides – Part 8: Calculating dispersion penalty from measured time-resolved chirp data
This part of IEC 61282 provides definitions of dispersion penalty and other related penalties. It describes the direct measurement of these penalties using a BER test set and the calculation of the...

References

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