IEC 62148-15:2021

IEC 62148-15 ®
Edition 3.0 2021-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic active components and devices – Package and interface standards –
Part 15: Discrete vertical cavity surface emitting laser packages

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 18 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62148-15 ®
Edition 3.0 2021-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic active components and devices – Package and interface standards –

Part 15: Discrete vertical cavity surface emitting laser packages

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-9660-8

– 2 – IEC 62148-15:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 5
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 9
4 Classification . 9
5 Specification of the optical interface . 9
5.1 General . 9
5.2 Optical connector interface (type 1) . 9
5.3 Pigtail interface (type 3) . 10
6 Specifications of electrical interfaces . 10
6.1 General . 10
6.2 Electrical interface specifications for VCSEL TO CAN packages . 10
6.2.1 General . 10
6.2.2 Numbering of electrical terminals . 10
6.2.3 Electrical terminal assignment . 10
6.3 Electrical interface specifications for VCSEL TOSA package with an LC
connector . 11
6.3.1 General . 11
6.3.2 Numbering of electrical terminals . 11
6.3.3 Electrical terminal assignment . 12
6.4 Electrical interface specifications for VCSEL TOSA package with an SC
connector . 12
6.4.1 General . 12
6.4.2 Numbering of electrical terminals . 12
6.4.3 Electrical terminal assignment . 12
7 Outline. 12
7.1 General . 12
7.2 Outline of VCSEL TO CAN packages . 12
7.2.1 Drawings of case outline . 12
7.2.2 Dimensions of VCSEL TO CAN packages . 13
7.3 Outlines of VCSEL TOSA package with an LC connector for uses at low
speed (below 8 Gbps Gbit/s) . 14
7.3.1 Drawings of case outline . 14
7.3.2 Dimensions of VCSEL TOSA package with an LC connector for uses at
low speed (below 8 Gbps Gbit/s) . 15
7.3.3 Optical receptacle LC style . 15
7.4 Outlines of VCSEL TOSA package with an SC connector for uses at low
speed (below 8 Gbps Gbit/s) . 15
7.4.1 Drawings of case outline . 15
7.4.2 Dimensions of VCSEL TOSA package with an SC connector for uses at
low speed (below 8 Gbps Gbit/s) . 16
7.4.3 Optical receptacle SC style . 16
7.5 Outlines of VCSEL TOSA package with an LC connector for uses at high
speed (≥ 8 Gbps Gbit/s) . 16

7.5.1 Drawings of case outline . 16
7.5.2 Dimensions of VCSEL TOSA package with an LC connector for uses at
high speed (≥ 8 Gbps Gbit/s) . 18
7.6 Outlines of VCSEL TOSA package with an SC connector for uses at high
speed (≥ 8 Gbps Gbit/s) . 18
7.6.1 Drawings of case outline . 18
7.6.2 Dimensions of VCSEL TOSA package with an SC connector for uses at
high speed (≥ 8 Gbps Gbit/s) . 19
7.7 Electrical terminals of high-speed (≥ 8 Gbps Gbit/s) VCSEL TOSA packages
for both cases with LC and SC connectors . 20
7.7.1 Pin out terminals . 20
7.7.2 Pad terminals . 21
7.8 Outlines of VCSEL pigtail package . 21
7.8.1 Drawings of case outline . 21
7.8.2 Dimensions of VCSEL pigtail package . 22
7.8.3 Optical connectors . 22
Bibliography . 23

Figure 1 – Electrical terminal numbering assignments of 3-pin and 4-pin type TO CAN

packages with optional colour code C for pin configuration . 10
Figure 2 – Electrical terminal numbering assignments of 3-pin and 4-pin type TOSA
packages with LC connector and with optional colour code C. 11
Figure 3 – Electrical terminal numbering assignments of 3-pin and 4-pin type TOSA
packages with SC connector and with optional colour code C . 12
Figure 4 – Schematic diagrams and pin-out of VCSEL TO CANs with flat window, with

ball lens, and with tilted window with optional colour code C on the bottom . 13
Figure 5 – Schematic diagram of VCSEL TOSA package with LC connector and with
optional colour code C on the bottom for uses at low speed (below 8 Gbps Gbit/s) . 14
Figure 6 – Schematic diagram of VCSEL TOSA package with SC connector and with
optional colour code C on the bottom for uses at low speed (below 8 Gbps Gbit/s) . 16
Figure 7 – Schematic diagram of VCSEL TOSA package with LC connector and with

optional colour code C for pin-type notation for uses at high speed (≥ 8 Gbps Gbit/s) . 17
Figure 8 – Schematic diagram of VCSEL TOSA package with SC connector and with
optional colour code C for pin-type notation for uses at high speed (≥ 8 Gbps Gbit/s) . 19
Figure 9 – Schematic diagram and pin-out of VCSEL pigtail package with optional
colour code C . 22

Table 1 – Pin-function definitions of 4-pin type VCSEL TO CAN packages . 11
Table 2 – Pin-function definitions of 3-pin type VCSEL TO CAN packages . 11
Table 3 – Dimension of VCSEL TO CANs with flat window, ball lens and tilted window . 14
Table 4 – Dimensions of VCSEL TOSA package with LC connector for uses at low

speed (below 8 Gbps Gbit/s) . 15
Table 5 – Dimension of VCSEL TOSA package with SC connector for uses at low
speed (below 8 Gbps Gbit/s) . 16
Table 6 – Dimension of VCSEL TOSA package with LC connector for uses at high
speed (≥ 8 Gbps Gbit/s) . 18
Table 7 – Dimension of VCSEL TOSA package with SC connector for uses at high

speed (≥ 8 Gbps Gbit/s) . 20
Table 8 – Pin out terminals of VCSEL TOSA package with LC and SC connectors for
uses at high speed (≥ 8 Gbps Gbit/s) . 21

– 4 – IEC 62148-15:2021 RLV © IEC 2021
Table 9 – Pad terminals of VCSEL TOSA package with LC and SC connectors and with
flexible printed circuit board for uses at high speed (≥ 8 Gbps Gbit/s) . 21
Table 10 – Dimensions of VCSEL pigtail package . 22

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
PACKAGE AND INTERFACE STANDARDS –

Part 15: Discrete vertical cavity surface emitting laser packages

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.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 62148-15:2014. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 6 – IEC 62148-15:2021 RLV © IEC 2021
IEC 62148-15 has been prepared by subcommittee 86C: Fibre optic systems and active devices,
of IEC technical committee 86: Fibre optics. It is an International Standard.
This third edition cancels and replaces the second edition published in 2014. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the classification of optical/electrical interface types is generalized and referred to
IEC 62148-1;
b) a new pin mode is added to Table 1;
c) several dimensions of the VCSEL TO CAN package are changed in Table 3 to reflect the
current state of technology;
d) Figure 7 is updated to show the complete details of the VCSEL TOSA package.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86C/1709/FDIS 86C/1712/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
A list of all parts of the IEC 62148 series, published under the general title Fibre optic active
components and devices – Package and interface standards, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

INTRODUCTION
Fibre optic laser devices are used to convert electrical signals into optical signals. This
document covers the physical dimension and interface for discrete vertical cavity surface
emitting laser (VCSEL) packages.

– 8 – IEC 62148-15:2021 RLV © IEC 2021
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
PACKAGE AND INTERFACE STANDARDS –

Part 15: Discrete vertical cavity surface emitting laser packages

1 Scope
This part of IEC 62148 covers the physical dimension and interface specifications for discrete
vertical cavity surface emitting laser (VCSEL) devices in optical telecommunication and optical
data transmission applications.
The intent of this document is to adequately specify the physical requirements of VCSEL
devices that will enable mechanical interchangeability of laser devices or transmitters complying
with this document both at the printed circuit wiring board and for any panel-mounting
requirement
2 Normative references
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.
IEC 60793-2 (all parts), Optical fibres – Part 2: Product specifications
IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for
class B single-mode fibres
IEC 60874 (all parts), Fibre optic interconnecting devices and passive components –
Connectors for optical fibres and cables
IEC 61754 (all parts), Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces
IEC 61754-4-1, Fibre optic connector interfaces – Part 4-1: Type SC connector family –
Simplified receptacle SC-PC connector interfaces
IEC 61754-4-100, Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces – Part 4-100: Type SC connector family – Simplified receptacle SC-PC
connector interfaces
IEC 61754-20, Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces – Part 20: Type LC connector family
IEC 62148-1, Fibre optic active components and devices – Package and interface standards –
Part 1: General and guidance
ITU-T Recommendation G.652, Characteristics of a single-mode optical fibre and cable
ASTM B-652.B, Standard Specification for Niobium-Hafnium Alloy Ingots

3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions
3.1.1
pigtail package
package type of photonic devices which has a length of fibre attachment for both optical input
and output ports
3.2 Abbreviated terms
CAN airtight sealed metal container (see IEC 60747-1)
PD photodiode
TO transistor outline
TOSA transmitter optical subassembly
VCSEL vertical cavity surface emitting laser
4 Classification
This part of IEC 62148, which gives the physical dimension and interface specifications for the
discrete vertical cavity surface emitting laser devices, specifies the interface of types 1 and 3
modules with direct solderable type electrical terminals.
Fibre optic transceiver modules are classified into five several types of forms according to the
combination of mating types of electrical and optical interfaces. The classifications provided in
IEC 62148-1 apply. Details are described in IEC 62148-1. The five types are as follows:
Type 1: fibre optic connector interface with direct solderable type electrical terminals.
Type 2: fibre optic connector interface with plug-in type electrical terminals.
Type 3: fibre optic pigtail interface with direct solderable type electrical terminals.
Type 4: fibre optic pigtail interface with plug-in type electrical terminals.
Type 5: modules are not classified into type 1 – type 4. (A typical example is a module that
has both electrical connectors and non-connector type terminals as an electrical
interface, such as a coaxial connector for signal and lead terminals for the power
supply.)
5 Specification of the optical interface
5.1 General
The intent of this document is to adequately specify the physical requirements of a VCSEL
device that will enable mechanical interchangeability of laser devices or transmitters to this
document both at the printed circuit board and for any panel mounting requirement.
5.2 Optical connector interface (type 1)
This document applies to the LC and SC optical connector interfaces. Detailed dimensions of
the optical receptacle are specified in IEC 61754-20 and IEC 61754-4-1 IEC 61754-4-100.

– 10 – IEC 62148-15:2021 RLV © IEC 2021
5.3 Pigtail interface (type 3)
All optical fibres defined in the IEC 60793-2 series IEC 60793-2-50, ASTM B-652.B and ITU-T
Recommendation G.652 are applicable.
All optical connectors defined in IEC 60874 (all parts) and IEC 61754 (all parts) are applicable,
if a pigtail has to be is terminated with an optical connector.
6 Specifications of electrical interfaces
6.1 General
Specifications for the electrical interface of VCSEL TO CAN, TOSA and VCSEL pigtail packages
are described in 6.2.
6.2 Electrical interface specifications for VCSEL TO CAN packages
6.2.1 General
The electrical interface in this document defines only the basic functionality of each pin.
6.2.2 Numbering of electrical terminals
Pin numbering assignments are shown in Figure 1.

NOTE The electrical terminals as viewed from the bottom of the package module with pins underneath.
Figure 1 – Electrical terminal numbering assignments of 3-pin and 4-pin type
TO CAN packages with optional colour code C for pin configuration
6.2.3 Electrical terminal assignment
Electrical terminal assignments are defined in Table 1 and Table 2.

Table 1 – Pin-function definitions of 4-pin type VCSEL TO CAN packages
Pin
Function (VCSEL with a monitor photodiode)
number
Common
Common anode Float (type K) Float (type A) Float (type D)
cathode
1 VCSEL anode VCSEL cathode VCSEL anode VCSEL cathode VCSEL cathode
VCSEL
VCSEL anode/PD
2 cathode/PD VCSEL cathode VCSEL anode PD anode
cathode
anode
VCSEL anode/PD
3 PD cathode PD anode PD cathode PD cathode
cathode
Ground/case Ground/case
4 PD anode/case PD anode/case case
(option) (option)
Optional
colour
Blue Red Green Black Yellow
code
(C)
Table 2 – Pin-function definitions of 3-pin type VCSEL TO CAN packages
Function (VCSEL with a monitor photodiode)
Pin number
Common anode Common cathode
1 VCSEL cathode VCSEL anode
2 VCSEL anode/PD cathode VCSEL cathode/PD anode
3 PD anode PD cathode
Optional colour code (C) Red Blue

6.3 Electrical interface specifications for VCSEL TOSA package with an LC connector
6.3.1 General
The electrical interface in this document defines only the basic functionality of each pin.
6.3.2 Numbering of electrical terminals
Pin numbering assignments are shown in Figure 2.

NOTE The electrical terminals as viewed from the bottom of the package module with pins underneath.
Figure 2 – Electrical terminal numbering assignments of 3-pin and 4-pin type TOSA
packages with LC connector and with optional colour code C

– 12 – IEC 62148-15:2021 RLV © IEC 2021
6.3.3 Electrical terminal assignment
The pin-function definitions of the 3-pin and 4-pin type VCSEL TOSA packages with an LC
connector are the same as those of the VCSEL TO CAN packages as specified in Table 1 and
Table 2.
6.4 Electrical interface specifications for VCSEL TOSA package with an SC connector
6.4.1 General
The electrical interface in this document defines only the basic functionality of each pin.
6.4.2 Numbering of electrical terminals
Pin numbering assignments are shown in Figure 3.

NOTE The electrical terminals as viewed from the bottom of the package module with pins underneath.
Figure 3 – Electrical terminal numbering assignments of 3-pin and 4-pin type TOSA
packages with SC connector and with optional colour code C
6.4.3 Electrical terminal assignment
The pin-function definitions of the 3-pin and 4-pin type VCSEL TOSA packages with an SC
connector are the same as those of the VCSEL TO CAN packages as specified in Table 1 and
Table 2.
7 Outline
7.1 General
The outline, dimensions and electrical interface of VCSEL TO CAN, TOSA and VCSEL pigtail
packages are described as follows in 7.2 to 7.8.
7.2 Outline of VCSEL TO CAN packages
7.2.1 Drawings of case outline
Case outline Drawings of VCSEL TO CAN packages are shown in Figure 4. Drawings of case
outlines for various VCSEL TO CAN packages are shown in Figure 4 a) to Figure 4 e).

a) Outside drawing of TO CAN b) Outside drawing of TO CAN
with flat window with ball lens

c) Outside drawing of TO CAN with tilted window

d) 3-pin type TO CAN e) 4-pin type TO CAN
pin configuration pin configuration

Figure 4 – Schematic diagrams and pin-out of VCSEL TO CANs with flat window, with
ball lens, and with tilted window with optional colour code C on the bottom
7.2.2 Dimensions of VCSEL TO CAN packages
Dimensions of VCSEL TO CANs are specified in Table 3.

– 14 – IEC 62148-15:2021 RLV © IEC 2021
Table 3 – Dimension of VCSEL TO CANs with flat window,
ball lens and tilted window
Dimensions
Reference Notes
Minimum Maximum
5,84 mm
φ D
φ D
3,54 mm 4,95 mm
A 2,65 mm 3,75 mm TO 46
A
3,40 2,60 mm 3,85 mm
Only for ball lens types
A
4,10 3,20 mm 4,70 mm
B 3,30 3,20 mm 4,27 mm Tilted window type only
K – 1,0 mm
l 12,0 mm 14,5 mm
φ b
0,40 mm 0,50 mm
α 14° 30° Degree (tilted window type only)
β 89° 91° Degree
φ a 2,50 mm 2,60 mm
0,4 mm 1,3 mm
φ c
7.3 Outlines of VCSEL TOSA package with an LC connector for uses at low speed
(below 8 Gbps Gbit/s)
7.3.1 Drawings of case outline
Case outline drawings of VCSEL TOSA packages are shown in Figure 5. Figure 5 is a drawing
of the case outline.
Figure 5 – Schematic diagram of VCSEL TOSA package with LC connector and with
optional colour code C on the bottom for uses at low speed (below 8 Gbps Gbit/s)

7.3.2 Dimensions of VCSEL TOSA package with an LC connector for uses at low
speed (below 8 Gbps Gbit/s)
The dimensions of the low speed (< 8 Gbps Gbit/s) VCSEL TOSA package with an LC connector
are specified in Table 4.
Table 4 – Dimensions of VCSEL TOSA package with
LC connector for uses at low speed (below 8 Gbps Gbit/s)
Dimensions
mm
Reference Notes
Minimum Maximum
a 1,24 1,30
b 3,33 3,43
c 3,99 4,09
d 7,24
g 5,87 6,01
h 6,12 6,34
φ D 6,55 6,65
φ a 2,50 2,60
0,4 1,3
φ c
i 2,44 2,60 Pedestal diameter
j 2,89 2,95
k 5,03 5,13
l 12,5 14,5
m 4,12 4,22
7.3.3 Optical receptacle LC style
Refer to IEC 61754-20 shall apply.
7.4 Outlines of VCSEL TOSA package with an SC connector for uses at low speed
(below 8 Gbps Gbit/s)
7.4.1 Drawings of case outline
Case outline drawings of VCSEL TOSA packages are shown in Figure 6. Figure 6 is a drawing
of the case outline.
– 16 – IEC 62148-15:2021 RLV © IEC 2021

Figure 6 – Schematic diagram of VCSEL TOSA package with SC connector and with
optional colour code C on the bottom for uses at low speed (below 8 Gbps Gbit/s)
7.4.2 Dimensions of VCSEL TOSA package with an SC connector for uses at low
speed (below 8 Gbps Gbit/s)
The dimensions of the low speed (< 8 Gbps Gbit/s) VCSEL TOSA package with an SC connector
are specified in Table 5.
Table 5 – Dimension of VCSEL TOSA package with
SC connector for uses at low speed (below 8 Gbps Gbit/s)
Dimensions
mm
Reference Notes
Minimum Maximum
a 5,30 8,56
b 6,25 6,61
c 6,68 8,05
d 1,30
f 0,1 0,57 25° chamfer
g 4,39 4,79
h 6,2 6,30
7,30 8,10
φ D
φ a 2,50 2,60
φ c 0,4 1,3
l 12,0 14,5
7.4.3 Optical receptacle SC style
Refer to IEC 61754-4-1. IEC 61754-4-100 shall apply.
7.5 Outlines of VCSEL TOSA package with an LC connector for uses at high speed
(≥ 8 Gbps Gbit/s)
7.5.1 Drawings of case outline
Case outline drawings of VCSEL TOSA packages with LC connector are shown in Figure 7.

Figure 7 is the drawing of the case outline.

Figure 7 – Schematic diagram of VCSEL TOSA package with LC connector and with
optional colour code C for pin-type notation for uses at high speed (≥ 8 Gbps Gbit/s)

– 18 – IEC 62148-15:2021 RLV © IEC 2021
7.5.2 Dimensions of VCSEL TOSA package with an LC connector for uses at high
speed (≥ 8 Gbps Gbit/s)
The dimensions of the high speed (≥ 8 Gbps Gbit/s) VCSEL TOSA package with an LC
connector are specified in Table 6.
Table 6 – Dimension of VCSEL TOSA package with
LC connector for uses at high speed (≥ 8 Gbps Gbit/s)
Dimensions
Reference Notes
Minimum Maximum
a 1,24 mm 1,30 mm
b 3,29 mm 3,48 mm
c 3,99 mm 4,09 mm
d 6,79 mm 7,52 mm
g 5,89 mm 5,99 mm
h 5,89 mm 5,99 mm
φ D 6,26 mm 6,65 mm
φ a 2,50 mm 2,59 mm
φ c 0,20 mm 0,30 mm
i 1,249 mm 1,256 mm Pedestal Aperture diameter
j 2,88 mm 2,95 mm
k 5,00 mm 5,12 mm
l2 1,2 mm
m 4,12 mm 5,10 mm
y2 0,20 mm
z 0,7 mm
Angle
α 55° 59°
β 80° 84° Angle
e 1,35 mm 1,45 mm
L 13,80 mm 14,26 mm
q 1,95 mm 2,34 mm
R1 0,45 mm 0,55 mm
s 0,85 mm 1,01 mm
t 0,25 mm 0,51 mm
u 0,63 mm 0,99 mm
v 0,74 mm 0,84 mm
w 0,39 mm 0,50 mm
x 0,35 mm 0,45 mm
y1 4,79 mm 4,89 mm
0,35 mm 3 and 2 holes
φ f
7.6 Outlines of VCSEL TOSA package with an SC connector for uses at high speed
(≥ 8 Gbps Gbit/s)
7.6.1 Drawings of case outline
Case outline drawings of VCSEL TOSA packages with SC connector are shown in Figure 8.

Figure 8 is a drawing of the case outline.

Figure 8 – Schematic diagram of VCSEL TOSA package with SC connector and with
optional colour code C for pin-type notation for uses at high speed (≥ 8 Gbps Gbit/s)
7.6.2 Dimensions of VCSEL TOSA package with an SC connector for uses at high
speed (≥ 8 Gbps Gbit/s)
The dimensions of the high speed (≥ 8 Gbps Gbit/s) VCSEL TOSA package with an SC
connector are specified in Table 7.

– 20 – IEC 62148-15:2021 RLV © IEC 2021
Table 7 – Dimension of VCSEL TOSA package
with SC connector for uses at high speed (≥ 8 Gbps Gbit/s)
Dimensions
Reference Notes
Minimum Maximum
a 5,0 mm 5,64 mm
b 6,41 mm
c 6,45 mm 8,05 mm
d 1,02 mm 1,14 mm
f  25° chamfer
g 4,59 mm 4,74 mm
h 6,18 mm 6,30 mm
φ D 7,21 mm 8,05 mm
φ a 2,50 mm 2,59 mm
0,40 mm 0,50 mm
φ c
l2 0,85 mm 1,05 mm
y2 0,11 mm 0,16 mm
z 0,46 mm 0,56 mm
α 55° 59° Angle
β 80° 84° Angle
e 1,35 mm 1,45 mm
L 14,35 mm 15,05 mm
q 1,95 mm 2,34 mm
R1 0,45 mm 0,55 mm
s 0,85 mm 1,01 mm
t 0,25 mm 0,51 mm
u 0,63 mm 0,99 mm
v 0,74 mm 0,84 mm
w 0,39 mm 0,50 mm
x 0,35 mm 0,45 mm
y1 4,79 mm 4,89 mm
φ f 0,35 mm 3 and 2 holes
7.7 Electrical terminals of high-speed (≥ 8 Gbps Gbit/s) VCSEL TOSA packages for
both cases with LC and SC connectors
7.7.1 Pin out terminals
The pin out terminals of VCSEL TOSA package with LC and SC connectors for uses at high
speed (≥ 8 Gbit/s) are specified in Table 8.

Table 8 – Pin out terminals of VCSEL TOSA package
with LC and SC connectors for uses at high speed (≥ 8 Gbps Gbit/s)
Pin number Function (A-type) Function (K-type)
1 VCSEL anode VCSEL cathode
2 PD cathode PD cathode
3 PD anode PD anode
4 VCSEL cathode VCSEL anode
5 Case/ground Case/ground
Optional colour code (C) Yellow Violet

7.7.2 Pad terminals
The pad terminals of VCSEL TOSA package with LC and SC connectors and with flexible printed
circuit board for uses at high speed (≥ 8 Gbit/s) are specified in Table 9.
Table 9 – Pad terminals of VCSEL TOSA package with LC and SC connectors
and with flexible printed circuit board for uses at high speed (≥ 8 Gbps Gbit/s)
PAD number Function (A-type) Function (K-type)
1 PD cathode PD cathode
2 Case/ground Case/ground
3 VCSEL anode VCSEL cathode
4 VCSEL cathode VCSEL anode
5 Case/ground Case/ground
6 PD anode PD anode
Optional colour code (C) Yellow Violet

7.8 Outlines of VCSEL pigtail package
7.8.1 Drawings of case outline
Case outline drawings of VCSEL pigtail packages are shown in Figure 9. Figure 9 is a drawing
of the case outline.
– 22 – IEC 62148-15:2021 RLV © IEC 2021

Figure 9 – Schematic diagram and pin-out of VCSEL
pigtail package with optional colour code C
7.8.2 Dimensions of VCSEL pigtail package
The dimensions of the VCSEL pigtail package are specified in Table 10.
Table 10 – Dimensions of VCSEL pigtail package
Dimensions
mm
Reference Notes
Minimum Maximum
φ a 2,5 2,6 Diameter
2,2 2,6 Diameter
φ β
a 26,3 26,7
b 3,3 4,2
c 12,0 14,5
d 7,8 8,2
e 12,5 12,9
f 16,8 17,2
g 7,8 8,2
7.8.3 Optical connectors
Refer to IEC 61754-4-1 and IEC 61754-20. IEC 61754-4-100 and IEC 61754-20 shall apply.

Bibliography
IEC 60130 (all parts), Connectors for frequencies below 3 MHz
IEC 60191 (all parts), Mechanical standardization of semiconductor devices
IEC 60603 (all parts), Connectors for electronic equipment
IEC 60747-1, Semiconductor devices – Part 1: General
IEC 60793-2 (all parts), Optical fibres – Part 2: Product specifications
IEC 60794 (all parts), Optical fibre cables
IEC 60825 (all parts), Safety of laser products
IEC 61076 (all parts), Connectors for electronic equipment – Product requirements
IEC 61280 (all parts), Fibre-optic communication subsystem test procedures
IEC 61281-1, Fibre optic communication subsystems – Part 1: Generic specification
IEC 61754 (all parts), Fibre optic interconnecting devices and passive components – Fibre optic
connector interfaces
IEC 62007-1, Semiconductor optoelectronic devices for fibre optic system applications – Part 1:
Specification template for essential ratings and characteristics
IEC 62007-2, Semiconductor optoelectronic devices for fibre optic system applications – Part 2:
Measuring methods
IEC 62148-1, Fibre optic active components and devices – Package and interface standards –
Part 1: General and guidance
IEC 62149-2, Fibre optic active components and devices – Performance standards – Part 2:
850 nm discrete vertical cavity surface emitting laser devices
ISO 1101, Geometrical product specifications (GPS) – Geometrical tolerancing – Tolerances of
form, orientation, location and run-out

___________
IEC 62148-15 ®
Edition 3.0 2021-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic active components and devices – Package and interface standards –
Part 15: Discrete vertical cavity surface emitting laser packages

Composants et dispositifs actifs fibroniques – Normes de boîtier et d’interface –
Partie 15: Boîtiers individuels pour laser à cavité verticale émettant par la
surface
– 2 – IEC 62148-15:2021 © IEC 2021
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 9
4 Classification . 9
5 Specification of the optical interface . 9
5.1 General . 9
5.2 Optical connector interface . 9
5.3 Pigtail interface . 9
6 Specifications of electrical interfaces . 9
6.1 General . 9
6.2 Electrical interface specifications for VCSEL TO CAN packages . 10
6.2.1 General . 10
6.2.2 Numbering of electrical terminals . 10
6.2.3 Electrical terminal assignment . 10
6.3 Electrical interface specifications for VCSEL TOSA package with an LC
connector . 11
6.3.1 General . 11
6.3.2 Numbering of electrical terminals . 11
6.3.3 Electrical terminal assignment . 11
6.4 Electrical interface specifications for VCSEL TOSA package with an SC
connector . 11
6.4.1 General . 11
6.4.2 Numbering of electrical terminals . 11
6.4.3 Electrical terminal assignment . 12
7 Outline. 12
7.1 General . 12
7.2 Outline of VCSEL TO CAN packages . 12
7.2.1 Drawings of case outline . 12
7.2.2 Dimensions of VCSEL TO CAN packages . 13
7.3 Outlines of VCSEL TOSA package with an LC connector for uses at low
speed (below 8 Gbit/s) . 14
7.3.1 Drawings of case outline .
...