BSI PD IEC TR 62000:2021

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Guidelines for combining different single-mode fibre sub-categories

Published By	Publication Date	Number of Pages
BSI	2021	16

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Categories: 33.180.10 - Fibres and cables, BSI

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Description

This document provides guidelines concerning single-mode fibre inter-compatibility.

A given category of single-mode fibre, for example B-655, can 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, cable cut-off wavelength.

These guidelines indicate the items that are taken into account when planning to connect

different implementations of single-mode fibres of the same category, for example different implementations of Class B single-mode fibres, and
single-mode fibres of different sub-categories, for example B-652.B with B-655.C.

See IEC 60793-2-50 for the attributes and definitions of single-mode fibre. The attributes and definitions of fibres covered in this document are given in Table 1.

Table 1 Correspondence table of various single-mode fibres

This document does not consider the connection of fibres with the same category from different manufacturers, which is already considered by the standardisation procedure.

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PDF Pages	PDF Title
2	undefined
4	CONTENTS
5	FOREWORD
7	1 Scope Table 1 – Correspondence table of various single-mode fibres
8	2 Normative references 3 Abbreviated terms 4 System issues
9	5 Optical fibre issues 5.1 General 5.2 Cut-off wavelength 5.3 Splicing issues
10	5.4 Combination of fibre parameters: chromatic dispersion coefficient and slope, polarization mode dispersion (PMD) 5.5 Non-linear effects
11	6 Launch fibres, pigtails, patch-cords and jumper cables 7 Attenuation 8 Summary
12	Table 2 – Suggested level of attention to be dedicated to each issue when connecting fibre types
13	Bibliography

Additional information

Identical National Standard Of	IEC TR 62000:2021
Standard Number	PD IEC TR 62000:2021
Pages	16
Publisher	BSI
Replaces	PD IEC/TR 62000:2011
B-653.B	G.653.B
Title	Guidelines for combining different single-mode fibre sub-categories
B-654.B	G.654.B
Wideband non-zero dispersion-shifted fibre	Optimised for multiple channel transmission in the wavelength range of 1 460 nm to 1 625 nm with the positive value of the chromatic dispersion coefficient that is greater than some non-zero value over the same wavelength range.
B-654.C	G.654.C
B-657.A2	G.657.A2
Status	Definitive
Non-zero dispersion-shifted fibre	Optimised for multiple channel transmission in the 1 530 to 1 625 nm region with a positive or negative, non-zero chromatic dispersion and a cut off wavelength that can be shifted above the 1 310 nm region.
Descriptors	Optical communication systems, Optical properties of materials, Fibre optics, Fibre optic cables, Electronic equipment and components, Optical fibres, Electromagnetic compatibility, Splicing, Attenuation
Cut-off shifted fibre	Optimised for low loss in the 1 550 nm region, with cut off wavelength shifted above the 1 310 nm region.
B-654.D	G.654.D
B-655.D	G.655.D
B-654.E	G.654.E
Bending loss insensitive fibre	Bending loss insensitive single-mode fibre suitable for use in the access networks, including inside buildings at the end of these networks. They are suitable to be used in the O, E, S, C and L-band (i.e. throughout the 1 260 nm to 1 625 nm range) and, in the case of B-657.A1 and B-657.A2, meet the requirements of B-652.D fibres. Subcategories B-657.B2 and B-657.B3 fibres are intended to be used for restricted distances (less than 1 000 m) at the end of access networks, in particular inside buildings or near buildings (e.g. outside building riser cabling).
B-655.E	G.655.E
ISBN	978 0 539 16063 5
Publication Date	2021-10-29
Committee	GEL/86/1
Extended band dispersion unshifted fibre	Optimised for use in the 1 310 nm region but can be used in the O, E, S, C and L-band (i.e. throughout the 1 260 nm to 1 625 nm range).
B-657.B3	G.657.B3
Dispersion unshifted fibre	Optimised for use in the 1 310 nm region but can be used in the 1 550 nm region.
B-657.B2	G.657.B2
Dispersion shifted fibre	Optimised for single channel transmission in the 1 550 nm region. Multiple channels can only be transmitted if care is taken to avoid non-linear effects such as four wave mixing by, for example, moderating the power levels or appropriate spacing or placement of the channels.
ICS Codes	33.180.10 - Fibres and cables

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BSI PD IEC TR 62000:2021

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