IEC 61290-10-1:2009

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Abbreviated terms
4 Apparatus
5 Test sample
6 Procedure
  6.1 Calibration
      6.1.1 Calibration of OSA power measurement
      6.1.2 Calibration of the pulse duty ratio
      6.1.3 Calibration of the sampling module
      6.1.4 Calibration of dynamic isolation
  6.2 OA measurement
      6.2.1 Timing adjustment for ASE and amplified signal
            power measurement
      6.2.2 ASE measurement
      6.2.3 Amplified signal power measurement
7 Calculation
  7.1 General
  7.2 Noise factor calculation
  7.3 ASE power
  7.4 Gain calculation
  7.5 Average output signal power
  7.6 Noise figure calculation
8 Test results
Annex A (informative) Output waveforms for various
        EDFAs at 25 kHz and 500 kHz pulse rates
Annex B (informative) Measurement accuracy versus
        pulse rate
Annex C (informative) Pulse repetition frequency
        measurements
Bibliography

IEC 61290-10-1:2009 applies to optical fibre amplifiers (OFAs) using active fibres, containing rare-earth dopants, currently commercially available. The uniform requirements for accurate and reliable measurements of the signal-spontaneous noise figure as defined in 3.1.18 of IEC 61291-1 are established. The test method independently detects amplified signal power and amplified spontaneous emission (ASE) power by launching optical pulses into the OFA under test and synchronously detecting 'on' and 'off' levels of the output pulses by using an optical sampling switch and an optical spectrum analyzer (OSA). This edition is a technical revision with updated references and cautions on proper use of the procedure.

This publication is to be read in conjunction with IEC 61291-1:2006.