IEC TR 62000:2005

TECHNICAL IEC
REPORT TR 62000
First edition
2005-11
Single-mode fibre compatibility guidelines

Reference number
IEC/TR 62000:2005(E)
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TECHNICAL IEC
REPORT TR 62000
First edition
2005-11
Single-mode fibre compatibility guidelines

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– 2 – TR 62000 ¤ IEC:2005(E)
CONTENTS
FOREWORD.3

1 Scope.5

2 Acronyms .6

3 System issues .6

4 Fibre issues.6
4.1 Cut-off wavelength .6
4.2 Splicing issues .7
4.3 Combination of fibre parameters: chromatic dispersion coefficient and slope,
polarization mode dispersion (PMD). .7
4.4 Non-linear effects .7
5 Launch fibres, pigtails, patch-cords and jumper cables .8
6 Summary.8
Bibliography.9

TR 62000 ¤ IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
SINGLE-MODE FIBRE COMPATIBILITY GUIDELINES

FOREWORD
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IEC 62000, which is a technical report, has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
86A/1022/DTR 86A/1026/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – TR 62000 ¤ IEC:2005(E)
The committee has decided that the contents of this publication will remain unchanged until

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the data related to the specific publication. At this date, the publication will be

• reconfirmed;
• withdrawn;
• replaced by a revised edition, or

• amended.
A bilingual version of this publication may be issued at a later date.

TR 62000 ¤ IEC:2005(E) – 5 –
SINGLE-MODE FIBRE COMPATIBILITY GUIDELINES

1 Scope
This technical report provides guidelines indicating the items that should be taken into
account when planning to connect

a) different implementations of single-mode fibres of the same type, e.g. different
implementations of type B single-mode fibres, and
b) single-mode fibres of different types, e.g. B1.1 with B4.
See IEC 60793-2-50 for the attributes and definitions of single-mode fibres, summarised in
Table 1 below.
A given type of single-mode fibre, for example B4, may have different implementations by
suitably optimising several of the following parameters: mode field diameter (hence effective
area), chromatic dispersion coefficient, slope of the chromatic dispersion curve and cable cut-
off wavelength.
Table 1 – Attributes and definitions of single-mode fibres
Common name Use (IEC 60793-2-50) IEC ITU-T
category/ Recommendation
type
Dispersion unshifted Optimised for use in the 1 310 nm region but can be B1.1 G.652 A, B
single-mode fibre used in the 1550 nm region
Cut-off shifted Optimised for low loss in the 1 550 nm region, with cut B1.2 G.654
single-mode fibre off wavelength shifted above the 1 310 nm region
Extended band Intended to extend the range of possible transmission B1.3 G.652 C, D
dispersion unshifted signals, using 1 310 nm band power budgets, to
single-mode fibre portions of the band above 1 360 nm and below
1 530 nm
Dispersion shifted Optimised for single channel transmission in the B.2 G.653
single-mode fibre 1 550 nm region. Multiple channels can only be
transmitted if care is taken to avoid the effects of four
wave mixing by, for example, moderating the power
levels or appropriate spacing or placement of the
channels
Non-zero Optimised for multiple channel transmission in the B4 G.655
dispersion-shifted 1 550 nm region with a cut off wavelength that may be
single-mode fibre shifted above the 1 310 nm region
Wideband Optimised for multiple channel transmission in the B5 G.656
non-zero dispersion- wavelength range of 1 460 nm – 1625 nm with the
shifted single-mode positive value of the chromatic dispersion coefficient
fibre that is greater
...