IEC 62343-5-1:2014

IEC 62343-5-1 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
colour
inside
Dynamic modules –
Part 5-1 Test methods – Dynamic gain tilt equalizer – Gain tilt settling time
measurement
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IEC 62343-5-1 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
colour
inside
Dynamic modules –
Part 5-1 Test methods – Dynamic gain tilt equalizer – Gain tilt settling time

measurement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.180.01; 33.180.99 ISBN 978-2-8322-1959-1

– 2 – IEC 62343-5-1:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviations and response waveforms . 6
3.1 Terms and definitions . 6
3.2 Abbreviations . 7
3.3 Response waveforms . 7
4 General information . 8
5 Apparatus . 9
5.1 Light source . 9
5.2 Pulse generator . 9
5.3 O/E converter . 9
5.4 Temperature and humidity chamber . 10
5.5 Oscilloscope . 10
5.6 Temporary joints . 10
5.7 Control system . 10
5.8 Measurement setup . 10
6 Procedure . 11
6.1 Direct control type . 11
6.1.1 Setup . 11
6.1.2 Preparation . 11
6.1.3 Wavelength setting . 12
6.1.4 Pulse generator setting . 12
6.1.5 Applying the driving pulse . 12
6.1.6 Monitoring and recording the output signal from DGTE under test (DUT) . 12
6.1.7 Calculation of the gain tilt settling time . 12
6.2 Digital control type . 12
6.2.1 Setup . 12
6.2.2 Preparation . 12
6.2.3 Wavelength setting . 12
6.2.4 Sending command . 12
6.2.5 Monitoring and recording the command complete flag. 13
6.2.6 Calculation of the gain tilt settling time . 13
6.3 Analogue control type . 13
6.3.1 Setup . 13
6.3.2 Preparation . 13
6.3.3 Wavelength setting . 13
6.3.4 Applying the control signal . 13
6.3.5 Monitoring and recording the command complete flag. 13
6.3.6 Calculation of the gain tilt settling time . 13
7 Details to be specified . 13
7.1 Apparatus . 13
7.1.1 Light source . 13
7.1.2 Pulse generator . 14
7.1.3 O/E converter . 14
7.1.4 Control system . 14

7.2 Measurement conditions . 14
Annex A (informative) Convergence criterion . 15
Annex B (informative) Measurement examples. 16
Annex C (informative) Gain tilt settling time for specific DGTEs . 17
Annex D (informative) Necessity for the correction for temperature dependency . 18

Figure 1 – Response waveforms for direct control DGTEs . 7
Figure 2 – Response waveforms for digital control DGTEs . 8
Figure 3 – Response waveforms for analogue control DGTEs . 8
Figure 4 – Measurement setup for direct control . 10
Figure 5 – Measurement setup for digital control . 11
Figure 6 – Measurement setup for analogue control . 11
Figure B.1 – Where insertion loss change is sufficient . 16
Figure B.2 – Where insertion loss change is small . 16

Table 1 – Categorization of DGTE by the control method . 9

– 4 – IEC 62343-5-1:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DYNAMIC MODULES –
Part 5-1 Test methods – Dynamic gain tilt equalizer –
Gain tilt settling time measurement

FOREWORD
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International Standard IEC 62343-5-1 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2009. It constitutes a
technical revision. This edition includes the following significant technical changes with
respect to the previous edition:
a) change in the title
b) changes in perform
...