SIST EN IEC 62148-22:2023

Fibre optic active components and devices - Package and interface standards - Part 22: 25 Gbit/s directly modulated laser packages with temperature control unit (IEC 62148-22:2023)

IEC 62148-22: 2023 defines the physical dimensions and interface specifications for directly modulated laser (DML) devices used in optical telecommunication and optical data transmission applications. The intent of this document is to adequately specify the physical requirements for DML devices so as to enable mechanical interchangeability of laser devices or transmitters complying with this document both at the printed circuit board and for any panel-mounting requirements.

Aktive Lichtwellenleiterbauelemente und Geräte - Gehäuse- und Schnittstellennormen - Teil 22: Direkt modulierte 25-Gbit/s-Lasergehäuse mit Temperaturkontrolleinheit (IEC 62148-22:2023)

Composants et dispositifs actifs fibroniques - Normes de boîtier et d'interface - Partie 22: Boîtiers pour laser à modulation 25 Gbit/s équipés d'une unité de régulation de température (IEC 62148-22:2023)

IEC 62148-22: 2023 définit les dimensions physiques et les spécifications des interfaces pour les dispositifs laser à modulation directe (DML) utilisés dans les applications de télécommunications optiques et de transmission optique de données. L’objet du présent document est de spécifier de manière adéquate les exigences physiques des dispositifs DML de façon à permettre l’interchangeabilité mécanique des dispositifs laser ou des émetteurs conformes au présent document, tant au niveau de la carte de circuit imprimé que pour toute exigence de montage sur panneau.

Optične aktivne komponente in naprave - Standardi za ohišja in vmesnike - 22. del: Neposredno modulirana laserska ohišja 25 Gbit/s z enoto za nadzor temperature (IEC 62148-22:2023)

Standard IEC 62148-22: 2023 določa fizične dimenzije in specifikacije vmesnika za naprave z neposredno moduliranimi laserji (DML), ki se uporabljajo na področju telekomunikacij z optičnimi vlakni in optičnega prenosa podatkov. Namen tega dokumenta je ustrezno opredeliti fizične zahteve za naprave z neposredno moduliranimi laserji, ki bodo omogočile mehansko medsebojno zamenljivost laserskih naprav ali oddajnikov v skladu s tem dokumentom, in sicer v zvezi s ploščo s tiskanim vezjem in katero koli zahtevo glede montaže na plošče.

General Information

• Status: Published
• Public Enquiry End Date: 30-Sep-2022
• Publication Date: 10-Apr-2023
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Mar-2023
• Due Date: 03-Jun-2023
• Completion Date: 11-Apr-2023
• Ref Project: EN IEC 62148-22:2023 - Fibre optic active components and devices - Package and interface standards - Part 22: 25 Gbit/s directly modulated laser packages with temperature control unit

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 62148-22:2023
01-maj-2023
Optične aktivne komponente in naprave - Standardi za ohišja in vmesnike - 22. del:
Neposredno modulirana laserska ohišja 25 Gbit/s z enoto za nadzor temperature
(IEC 62148-22:2023)
Fibre optic active components and devices - Package and interface standards - Part 22:
25 Gbit/s directly modulated laser packages with temperature control unit (IEC 62148-
22:2023)
Aktive Lichtwellenleiterbauelemente und Geräte - Gehäuse- und Schnittstellennormen -
Teil 22: Direkt modulierte 25-Gbit/s-Lasergehäuse mit Temperaturkontrolleinheit (IEC
62148-22:2023)
Composants et dispositifs actifs fibroniques - Normes de boîtier et d'interface - Partie 22:
Boîtiers pour laser à modulation 25 Gbit/s équipés d'une unité de régulation de
température (IEC 62148-22:2023)
Ta slovenski standard je istoveten z: EN IEC 62148-22:2023
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
SIST EN IEC 62148-22:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62148-22:2023

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SIST EN IEC 62148-22:2023


EUROPEAN STANDARD EN IEC 62148-22

NORME EUROPÉENNE

EUROPÄISCHE NORM March 2023
ICS 33.180.20

English Version
Fibre optic active components and devices - Package and
interface standards - Part 22: 25 Gbit/s directly modulated laser
packages with temperature control unit
(IEC 62148-22:2023)
Composants et dispositifs actifs fibroniques - Normes de Aktive Lichtwellenleiterbauelemente und Geräte - Gehäuse-
boîtier et d'interface - Partie 22: Boîtiers pour laser à und Schnittstellennormen - Teil 22: Direkt modulierte 25-
modulation 25 Gbit/s équipés d'une unité de régulation de Gbit/s-Lasergehäuse mit Temperaturkontrolleinheit
température (IEC 62148-22:2023)
(IEC 62148-22:2023)
This European Standard was approved by CENELEC on 2023-03-22. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62148-22:2023 E

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SIST EN IEC 62148-22:2023
EN IEC 62148-22:2023 (E)
European foreword
The text of document 86C/1851/FDIS, future edition 1 of IEC 62148-22, prepared by SC 86C "Fibre
optic systems and active devices" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 62148-22:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-12-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-03-22
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62148-22:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60191 (series) NOTE Approved as EN 60191 (series)
IEC 60603 (series) NOTE Approved as EN 60603 (series)
IEC 60794 (series) NOTE Approved as EN IEC 60794 (series)
IEC 60825 (series) NOTE Approved as EN 60825 (series)
IEC 61076 (series) NOTE Approved as EN IEC 61076 (series)
IEC 61280 (series) NOTE Approved as EN IEC 61280 (series)
IEC 61281-1 NOTE Approved as EN IEC 61281-1
1 2
IEC 61754-36 NOTE Approved as EN IEC 61754-36
3 4
IEC 61754-37 NOTE Approved as EN IEC 61754-37
IEC 62007-1 NOTE Approved as EN 62007-1

1
Under preparation. Stage at the time of publication: IEC/AFDIS 61754-36:2022.
2
Under preparation. Stage at the time of publication: prEN IEC 61754-36:2022.
3
Under preparation. Stage at the time of publication: IEC/AFDIS 61754-37:2022.
4
Under preparation. Stage at the time of publication: prEN IEC 61754-37:2022.
2

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SIST EN IEC 62148-22:2023
EN IEC 62148-22:2023 (E)
IEC 62007-2 NOTE Approved as EN 62007-2
IEC 62148-15:2021 NOTE Approved as EN IEC 62148-15:2021 (not modified)
IEC 62148-18:2014 NOTE Approved as EN 62148-18:2015 (not modified)
IEC 62149-2 NOTE Approved as EN 62149-2
ISO 1101 NOTE Approved as EN ISO 1101
3

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SIST EN IEC 62148-22:2023
EN IEC 62148-22:2023 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-2-50 - Optical fibres - Part 2-50: Product EN IEC 60793-2-50 -
specifications - Sectional specification for
class B single-mode fibres
IEC 61753 series Fibre optic interconnecting devices and EN IEC 61753 series
passive components - Performance standard
IEC 61754 series Fibre optic interconnecting devices and EN 61754 series
passive components - Fibre optic connector
interfaces
IEC 61755 series Fibre optic interconnecting devices and EN IEC 61755 series
passive components - Connector optical
interfaces for single-mode fibres
IEC 61754-20 - Fibre optic interconnecting devices and EN 61754-20 -
passive components - Fibre optic connector
interfaces - Part 20: Type LC connector family
IEC 62148-1 - Fibre optic active components and devices - EN IEC 62148-1 -
Package and interface standards - Part 1:
General and guidance

4

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SIST EN IEC 62148-22:2023



IEC 62148-22

®


Edition 1.0 2023-02




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Fibre optic active components and devices – Package and interface standards –

Part 22: 25 Gbit/s directly modulated laser packages with temperature control

unit



Composants et dispositifs actifs fibroniques – Normes de boîtier et d’interface –

Partie 22: Boîtiers pour laser à modulation directe 25 Gbit/s équipés d’une unité


de régulation de température













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.20 ISBN 978-2-8322-6528-4




Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN IEC 62148-22:2023
– 2 – IEC 62148-22:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 8
4 Specification of the optical interface . 8
4.1 Optical connector interface . 8
4.2 Pigtail interface . 8
5 Specification of electrical interface . 8
5.1 General . 8
5.2 Electrical interface specifications for DML TO-can package . 9
5.2.1 5-pin . 9
5.2.2 7-pin . 9
5.2.3 8-pin . 10
5.3 Electrical interface specifications for DML TOSA module packages . 11
5.3.1 5-pin . 11
5.3.2 7-pin . 11
5.3.3 8-pin . 12
6 Outline. 12
6.1 General . 12
6.2 Outline of DML TO-can package . 12
6.2.1 Drawing of case outline . 12
6.2.2 Dimensions of DML TO-can packages . 14
6.3 Outline of DML TOSA module package with an LC connector . 15
6.3.1 Drawing of case outline . 15
6.3.2 Dimensions of DML TOSA module package with LC connector . 17
6.3.3 Dimensions of LC type optical receptacle . 18
6.4 Outlines of DML pigtail package . 18
6.4.1 Drawing of case outline . 18
6.4.2 Dimensions of DML pigtail package . 19
6.4.3 Optical connector. 21
Bibliography . 22

Figure 1 – Electrical terminal numbering assignments for 5-pin type TO-can packages
with temperature control unit . 9
Figure 2 – Electrical terminal numbering assignments for 7-pin type TO-can packages
with temperature control unit . 10
Figure 3 – Electrical terminal numbering assignments for 8-pin type TO-can packages
with temperature control unit . 10
Figure 4 – Electrical terminal numbering assignments for 5-pin TOSA module packages
with temperature control unit . 11
Figure 5 – Electrical terminal numbering assignments for 7-pin TOSA module packages
with temperature control unit . 12
Figure 6 – Electrical terminal numbering assignments for 8-pin TOSA module packages
with temperature control unit . 12

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SIST EN IEC 62148-22:2023
IEC 62148-22:2023 © IEC 2023 – 3 –
Figure 7 – Case outline of TO-can with spherical lens . 13
Figure 8 – Case outline of TO-can with aspherical lens . 13
Figure 9 – Pin configuration for 5-pin TO-can . 13
Figure 10 – Pin configuration for 7-pin TO-can . 14
Figure 11 – Pin configuration for 8-pin TO-can . 14
Figure 12 – Schematic diagram of DML TOSA module packages with LC connector . 17
Figure 13 – Schematic diagram and pin-out of DML pigtail package . 19

Table 1 – Pin function definitions for 5-pin type DML TO-can packages . 9
Table 2 – Pin function definitions for 7-pin type DML TO-can packages . 10
Table 3 – Pin function definitions for 8-pin type DML TO-can packages . 11
Table 4 – Dimensions of DML TO-can package . 15
Table 5 – Dimensions of DML TOSA module package with LC connector . 17
Table 6 – Pin out terminals of DML TOSA module packages with LC connector and
with flexible printed circuit board . 18
Table 7 – Dimensions of DML pigtail package . 20
Table 8 – Pin out terminals of DML pigtail package . 21

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SIST EN IEC 62148-22:2023
– 4 – IEC 62148-22:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
PACKAGE AND INTERFACE STANDARDS –

Part 22: 25 Gbit/s directly modulated laser packages
with temperature control unit

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 entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62148-22 has been prepared by subcommittee 86C: Fibre optic systems and active devices,
of IEC technical committee 86: Fibre optics. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
86C/1851/FDIS 86C/1859/RVD

Full
...

SLOVENSKI STANDARD
oSIST prEN IEC 62148-22:2022
01-oktober-2022
Aktivne optične komponente in naprave - Standardi za ohišja in vmesnike - 22. del:
Neposredno modulirana laserska ohišja 25 Gbit/s z enoto za nadzor temperature
Fibre optic active components and devices - Package and interface standards - Part 22:
25 Gbit/s directly modulated laser packages with temperature control unit
Ta slovenski standard je istoveten z: prEN IEC 62148-22:2022
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
oSIST prEN IEC 62148-22:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 62148-22:2022

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oSIST prEN IEC 62148-22:2022
86C/1804/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62148-22 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-07-08 2022-09-30
SUPERSEDES DOCUMENTS:
86C/1765/CD, 86C/1795/CC

IEC SC 86C : FIBRE OPTIC SYSTEMS AND ACTIVE DEVICES
SECRETARIAT: SECRETARY:
United States of America Mr Fred Heismann
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:


Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

TITLE:
Fibre optic active components and devices - Package and interface standards - Part 22: 25 Gbit/s
directly modulated laser packages with temperature control unit

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:


Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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oSIST prEN IEC 62148-22:2022
IEC CDV 62148-22/Ed1 © IEC:2022 – 2 – 86C/1804/CDV
1 CONTENTS
2
3 FOREWORD . 4
4 INTRODUCTION . 6
5 1 Scope . 7
6 2 Normative references . 7
7 3 Terms, definitions and abbreviated terms . 7
8 4 Specification of the optical interface . 8
9 4.1 Optical connector interface . 8
10 4.2 Pigtail interface . 8
11 5 Specification of electrical interface . 8
12 5.1 General . 8
13 5.2 Electrical interface specifications for DML TO CAN package . 8
14 5.2.1 5-pin . 8
15 5.2.2 7-pin . 9
16 5.2.3 8-pin . 10
17 5.3 Electrical interface specifications for DML TOSA packages . 10
18 5.3.1 5-pin . 10
19 5.3.2 7-pin . 11
20 5.3.3 8-pin . 11
21 6 Outline . 12
22 6.1 General . 12
23 6.2 Outline of DML TO CAN package . 12
24 6.2.1 Drawing of case outline . 12
25 6.2.2 Dimensions of DML TO CAN packages . 13
26 6.3 Outline of DML TOSA package with an LC connector . 14
27 6.3.1 Drawing of case outline . 14
28 6.3.2 Dimensions of DML TOSA package with LC connector . 15
29 6.3.3 Dimension of LC type optical receptacle . 16
30 6.4 Outlines of DML pigtail package . 16
31 6.4.1 Drawing of case outline . 16
32 6.4.2 Dimensions of DML pigtail package . 17
33 6.4.3 Optical connector . 18
34 Bibliography . 19
35
36 Figure 1 –Electrical terminal numbering assignments for 5-pin type TO CAN packages
37 with temperature control unit . 9
38 Figure 2 – Electrical terminal numbering assignments for 7-pin type TO CAN packages
39 with temperature control unit . 9
40 Figure 3 – Electrical terminal numbering assignments for 8-pin type TO CAN packages
41 with temperature control unit . 10
42 Figure 4 – Electrical terminal numbering assignments for 5-pin TOSA packages with
43 temperature control unit . 11
44 Figure 5 – Electrical terminal numbering assignments for 7-pin TOSA packages with
45 temperature control unit . 11
46 Figure 6 – Electrical terminal numbering assignments for 8-pin TOSA packages with
47 temperature control unit . 11

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oSIST prEN IEC 62148-22:2022
IEC CDV 62148-22/Ed1 © IEC:2022 – 3 – 86C/1804/CDV
48 Figure 7 – Case outline of TO CAN with spherical lens . 12
49 Figure 8 – Case outline of TO CAN with aspherical lens . 12
50 Figure 9 – Pin configuration for 5-pin TO CAN . 12
51 Figure 10 – Pin configuration for 7-pin TO CAN . 13
52 Figure 11 – Pin configuration for 8-pin TO CAN . 13
53 Figure 12 – Schematic diagram of DML TOSA packages with LC connector. 15
54 Figure 13 – Schematic diagram and pin-out of DML pigtail package . 17
55
56 Table 1 – Pin function definitions for 5-pin type DML TO CAN packages . 9
57 Table 2 – Pin function definitions for 7-pin type DML TO CAN packages . 9
58 Table 3 – Pin function definitions for 8-pin type DML TO CAN packages . 10
59 Table 4 – Dimensions of DML TO CAN package . 13
60 Table 5 – Dimensions of DML TOSA package with LC connector . 15
61 Table 6 – Pin out terminals of DML TOSA packages with LC connector and with
62 flexible printed circuit board . 16
63 Table 7 – Dimensions of DML pigtail package . 17
64 Table 8 – Pin out terminals of DML pigtail package . 18
65
66
67

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oSIST prEN IEC 62148-22:2022
IEC CDV 62148-22/Ed1 © IEC:2022 – 4 – 86C/1804/CDV
68 INTERNATIONAL ELECTROTECHNICAL COMMISSION
69 ____________
70
71 FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES – PACKAGE AND
72 INTERFACE STANDARDS
73
74 Part 22: 25 Gbit/s Directly modulated laser packages with temperature
75 control unit
76
77
78 FOREWORD
79 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
80 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
81 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
82 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
83 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
84 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
85 in the subject dealt with may participate in this preparatory work. International, governmental and non-
86 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
87 with the International Organization for Standardization (ISO) in accordance with conditions determined by
88 agreement between the two organizations.
89 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
90 consensus of opinion on the relevant subjects since each technical committee has representation from all
91 interested IEC National Committees.
92 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
93 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
94 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
95 misinterpretation by any end user.
96 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
97 transparently to the maximum extent possible in their national and regional publications. Any divergence
98 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
99 the latter.
100 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
101 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
102 services carried out by independent certification bodies.
103 6) All users should ensure that they have the latest edition of this publication.
104 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
105 members of its technical committees and IEC National Committees for any personal injury, property damage or
106 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
107 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
108 Publications.
109 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
110 indispensable for the correct application of this publication.
111 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
112 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
113 IEC 62148-22 has been prepared by subcommittee 86C: Fibre optic systems and active
114 devices, of IEC technical committee 86: Fibre optics. It is an International Standard.
115 The text of this International Standard is based on the following documents:
Draft Report on voting
86C/XX/FDIS 86C/XX/RVD
116 Full information on the voting for its approval can be found in the report on voting indicated in
117 the above table.
118 The language used for the development of this International Standard is English.
119 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
120 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,

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121 available at www.iec.ch/members_experts/refdocs. The main document types developed by
122 IEC are described in greater detail at www.iec.ch/standardsdev/publications.
123 A list of all parts of the IEC 62148 series, published under the general title Fibre optic active
124 components and devices – Package and interface standards, can be found on the IEC
125 website.
126 The committee has decided that the contents of this document will remain unchanged until the
127 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
128 the specific document. At this date, the document will be
129 • reconfirmed,
130 • withdrawn,
131 • replaced by a revised edition, or
132 • amended.

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133 INTRODUCTION
134 Fibre optic laser devices are used to convert electrical signals into optical signals. This
135 international standard covers the physical dimensions and interfaces for directly modulated
136 laser (DML) packages which are intended to be applied to 25 Gbit/s transceivers.

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137 FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES – PACKAGE AND
138 INTERFACE STANDARDS
139
140 Part 22: 25 Gbit/s Directly modulated laser packages with temperature
141 control unit
142
143 1 Scope
144 This part of IEC 62148 defines the physical dimensions and interface specifications for
145 directly modulated laser (DML) devices used in optical telecommunication and optical data
146 transmission applications.
147 The intent of this document is to adequately specify the physical requirements for DML
148 devices so as to enable mechanical interchangeability of laser devices or transmitters
149 complying with this document both at the printed circuit board and for any panel-mounting
150 requirements.
151 2 Normative references
152 The following documents are referred to in the text in such a way that some or all of their
153 content constitutes requirements of this document. For dated references, only the edition
154 cited applies. For undated references, the latest edition of the referenced document (including
155 any amendments) applies.
156 IEC 60793-2-50, Optical fibres – Part
...