IEC 62803:2016

IEC 62803 ®
Edition 1.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Transmitting equipment for radiocommunication – Frequency response of
optical-to-electric conversion device in high-frequency radio over fibre
systems – Measurement method
Matériels émetteurs pour les radiocommunications – Réponse en fréquence des
dispositifs de conversion optique-electrique dans des systèmes de transmission
radio sur fibre haute fréquence – Méthode de mesure

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IEC 62803 ®
Edition 1.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Transmitting equipment for radiocommunication – Frequency response of

optical-to-electric conversion device in high-frequency radio over fibre

systems – Measurement method
Matériels émetteurs pour les radiocommunications – Réponse en fréquence des

dispositifs de conversion optique-electrique dans des systèmes de transmission

radio sur fibre haute fréquence – Méthode de mesure

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.060.20 ISBN 978-2-8322-3392-4

– 2 – IEC 62803:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
4 Optical-to-electrical (O/E) conversion device . 9
4.1 Photo diode (PD) . 9
4.1.1 General . 9
4.1.2 Component parts . 9
4.1.3 Structure . 9
4.1.4 Requirements for PD . 10
4.2 DFG device . 10
4.2.1 General . 10
4.2.2 Component parts . 10
4.2.3 Structure . 10
4.2.4 Requirements for DFG device . 10
5 Sampling for quality control . 11
5.1 Sampling. 11
5.2 Sampling frequency . 11
6 Measurement method of frequency response . 11
6.1 Circuit diagram . 11
6.2 Measurement condition . 12
6.2.1 Temperature and environment . 12
6.2.2 Warming up of measurement equipment . 12
6.3 Principle of measurement method . 12
6.4 Measurement procedure . 13
Annex A (normative) Power balanced two-tone signal generation by using a high
extinction-ratio MZM [2] . 15
Annex B (informative) Requirements for the optical amplifier with automatic level
control . 17
B.1 Introductory remark . 17
B.2 Block diagram . 17
B.2.1 Optical amplifier . 17
B.2.2 Automatic level control . 18
B.3 Function and capabilities . 18
B.4 Requirements . 19
B.4.1 Optical amplifier . 19
B.4.2 Automatic level control (ALC) . 20
Annex C (informative) Frequency-response measurement system and automatic level
control EDFA . 21
C.1 Frequency response measurement system for optical-to-electric conversion
devices with a two-tone generator . 21
C.2 Automatic level control EDFA (ALC-EDFA) . 22
Bibliography . 24

Figure 1 – Definition of "conversion efficiency " . 8
Figure 2 – Optical-to-electrical conversion by photo diode . 10
Figure 3 – DFG device . 10
Figure 4 – Circuit diagram . 11
Figure B.1 – Block diagram of the optical amplifier . 17
Figure B.2 – Block diagram of the automatic level control . 18
Figure B.3 – Frequency characteristics . 19
Figure C.1 – System configuration for the frequency response measurement system . 21
Figure C.2 – ALC-EDFA system configuration. 22
Figure C.3 – Frequency response measurement examples . 23

Table C.1 – Typical specifications of the frequency response measurement system . 22
Table C.2 – Typical specifications of the ALC-EDFA system . 23

– 4 – IEC 62803:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TRANSMITTING EQUIPMENT FOR RADIOCOMMUNICATION –
FREQUENCY RESPONSE OF OPTICAL-TO-ELECTRIC CONVERSION
DEVICE IN HIGH-FREQUENCY RADIO OVER FIBRE SYSTEMS –
MEASUREMENT METHOD
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in
addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is en
...