IEC 61290-10-1:2009

IEC 61290-10-1 ®
Edition 2.0 2009-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical amplifiers – Test methods –
Part 10-1: Multichannel parameters – Pulse method using an optical switch and
optical spectrum analyzer
Amplificateurs optiques – Méthodes d'essai
Partie 10-1: Paramètres à canaux multiples – Méthode d’impulsion utilisant un
interrupteur optique et un analyseur de spectre optique
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IEC 61290-10-1 ®
Edition 2.0 2009-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical amplifiers – Test methods –
Part 10-1: Multichannel parameters – Pulse method using an optical switch and
optical spectrum analyzer
Amplificateurs optiques – Méthodes d'essai
Partie 10-1: Paramètres à canaux multiples – Méthode d’impulsion utilisant un
interrupteur optique et un analyseur de spectre optique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
T
CODE PRIX
ICS 33.180.30 ISBN 978-2-88910-479-6
– 2 – 61290-10-1 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope and object.7
2 Normative references .7
3 Abbreviated terms .7
4 Apparatus.8
5 Test sample.10
6 Procedure .10
6.1 Calibration.11
6.1.1 Calibration of OSA power measurement .11
6.1.2 Calibration of the pulse duty ratio .11
6.1.3 Calibration of the sampling module.12
6.1.4 Calibration of dynamic isolation .13
6.2 OA measurement .15
6.2.1 Timing adjustment for ASE and amplified signal power measurement.15
6.2.2 ASE measurement.16
6.2.3 Amplified signal power measurement.16
7 Calculation .17
7.1 General .17
7.2 Noise factor calculation .18
7.3 ASE power .18
7.4 Gain calculation .19
7.5 Average output signal power .19
7.6 Noise figure calculation .19
8 Test results .19
Annex A (informative) Output waveforms for various EDFAs at 25 kHz and 500 kHz
pulse rates.20
Annex B (informative) Measurement accuracy versus pulse rate.22
Annex C (informative) Pulse repetition frequency measurements.23
Bibliography.24

Figure 1 – Typical arrangement of the optical pulse test method .8
Figure 2 – Two arrangements of the optical pulse source.9
Figure 3 – Static isolation of an optical switch.9
Figure 4 – Definitions of rise time and fall time, t and t of optical pulses .10
r f
Figure 5 – Measurement flow chart .11
Figure 6 – Arrangement for the sampling switch calibration.12
Figure 7 – Arrangement for timing adjustment.13
Figure 8 – Timing adjustment of the sampling switch .14
Figure 9 – Timing chart for dynamic isolation calibration .15
Figure 10 – Arrangement for OA measurement .16
Figure 11 – Timing chart for ASE measurement .17
Figure 12 – Timing chart for amplified signal power measurement .17

61290-10-1 © IEC:2009 – 3 –
Figure A.1 – EDFA output waveforms for various EDFAs .21
Figure B.1 – NF measurement accuracy versus pulse rate.22
Figure C.1 – Set-up to evaluate gain recovery error versus modulation rate.23
Figure C.2 – Gain recovery error versus modulation frequency with pump current as a
parameter .23

– 4 – 61290-10-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 10-1: Multichannel parameters –
Pulse method using an optical switch
and optical spectrum analyzer
FOREWORD
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International Standard IEC 61290-10-1 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre
...