1、 International Telecommunication Union ITU-T Series GTELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Supplement 40(06/2010) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Optical fibre and cable Recommendations and standards guideline ITU-T G-series Recommendations Supplement
2、 40 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEP
3、HONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARAC
4、TERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT
5、GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 For further details, please refer to the list of ITU-T Recommendations. G series Supplement 40 (06/2010) i Supplement 40 to ITU-T G-series Recommendations Optical fibre and cable Recommendations and
6、standards guideline Summary Supplement 40 to the ITU-T G-series Recommendations provides information on the background and specifications used in the development of optical fibre and cable ITU-T Recommendations such as Recommendations ITU-T G.651.1, ITU-T G.652, ITU-T G.653, ITU-T G.654, ITU-T G.655
7、, ITU-T G.656, ITU-T G.657 and L series Recommendations. It also contains information used in the development of test method Recommendations such as Recommendations ITU-T G.650.1, ITU-T G.650.2 and ITU-T G.650.3. Moreover, this Supplement maps ITU-T documents to optical fibre and cable standards dev
8、eloped under IEC. History Edition Recommendation Approval Study Group 1.0 ITU-T G Suppl. 40 2004-04-30 15 2.0 ITU-T G Suppl. 40 2006-11-10 15 3.0 ITU-T G Suppl. 40 2010-06-11 15 ii G series Supplement 40 (06/2010) FOREWORD The International Telecommunication Union (ITU) is the United Nations special
9、ized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them wit
10、h a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Reco
11、mmendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this publication, the expression “Administration“ is used for conc
12、iseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this publication is voluntary. However, the publication may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the publication is
13、achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the publication is required of any party. INTELLECTUA
14、L PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether ass
15、erted by ITU members or others outside of the publication development process. As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this publication. However, implementers are cautioned that thi
16、s may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. G series
17、Supplement 40 (06/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 5 4 Abbreviations and acronyms 5 5 Conventions 5 6 ITU-T G.65x-series Recommendations 5 7 Features of existing optical fibre categories and their application areas 6 7.1 Attenuation properties 6 7.2 Dispersion properti
18、es 6 7.3 Bending properties 6 8 Relationship between fibre parameters and interface parameters 7 8.1 Relationship between PMD and DGD . 7 8.2 Transmission limitation due to dispersion properties . 7 9 Unspecified fibre parameters and their test methods 7 9.1 Non-linear coefficient . 7 9.2 Effective
19、area Aeff . 7 9.3 Stimulated Brillouin scattering (SBS) power rating . 7 9.4 Raman gain coefficient . 7 9.5 Microbending loss 7 10 Optical fibre properties for operation and maintenance . 7 10.1 Properties of cut-off wavelength under the deployment conditions . 7 10.2 Properties of chromatic dispers
20、ion and PMD . 8 10.3 Splice loss . 8 10.4 Input power limitation and safety aspects 8 10.5 Reliability of optical fibre cable . 8 10.6 Optical loss properties due to hydrogen . 8 10.7 Environmental test conditions for fibres 8 10.8 Optical fibre cable network maintenance . 8 Appendix I Standardized
21、criteria 9 I.1 Criteria for revising optical fibre Recommendations . 9 I.2 Guideline for conducting measurement round robins in Question 5 of ITU-T Study Group 15 (Q.5/15) 9 Appendix II Optical fibre cable structures 10 Appendix III Fibre optics hardware and passive components 11 Appendix IV Constru
22、ction and installation practices . 12 iv G series Supplement 40 (06/2010) Page Appendix V Status of optical fibre and cable specifications in ITU-T and IEC 13 V.1 Fibre specifications . 13 V.2 Fibre cable specifications . 13 Appendix VI Comparison of ITU-T Recommendations and IEC documents concernin
23、g test methods 15 VI.1 Test methods for single-mode fibres 15 VI.2 Test methods for multimode fibres . 18 VI.3 Recommendation available only in ITU-T and not in IEC 19 VI.4 Documents available only in IEC and not in ITU-T 19 G series Supplement 40 (06/2010) 1 Supplement 40 to ITU-T G-series Recommen
24、dations Optical fibre and cable Recommendations and standards guideline 1 Scope This fibre guideline aims at providing a road map with regard to the specifications of various kinds of fibres and their test methods, as well as the most important fibre optics hardware which will be very useful for eng
25、ineers reading the ITU-T Recommendations and other documents to design an optical fibre network. This guideline should also make it easier for readers to correlate the specifications found in the fibre, terrestrial system interface, components, submarine systems and physical infrastructure Recommend
26、ations currently being developed in ITU-T. Moreover, this guideline provides important information for system designs and optical fibre cable installations in relation to, for example, high power limitations and reliability, which is available to optical fibre cable installation suppliers and system
27、 designers. This guideline contains: Definitions of fibre parameters not specified in current ITU-T fibre Recommendations but which are very important for practical use. Features of existing optical fibre categories and their application areas. The relationship between fibre parameters and interface
28、 parameters. Optical fibre properties for operation and maintenance. In the appendices, the following items are described for reference: Standardization criteria for optical fibres in ITU-T Study Group 15. Optical fibre cable structures and constructions. Fibre optics hardware and passive components
29、 mostly used in the construction of an optical network. Comparison of ITU-T Recommendations and IEC documents related to optical fibre specifications and test methods. In particular, this guideline is prepared concisely by quoting document numbers so as to avoid any overlap with existing ITU-T Recom
30、mendations and Handbooks or IEC documents. This guideline would be a very useful desk book for engineers dealing with optical transmission systems. 2 References ITU-T G.650.1 Recommendation ITU-T G.650.1 (2004), Definitions and test methods for linear, deterministic attributes of single-mode fibre a
31、nd cable. ITU-T G.650.2 Recommendation ITU-T G.650.2 (2005), Definitions and test methods for statistical and non-linear related attributes of single-mode fibre and cable. ITU-T G.650.3 Recommendation ITU-T G.650.3 (2008), Test methods for installed single-mode optical fibre cable links. ITU-T G.651
32、.1 Recommendation ITU-T G.651.1 (2007), Characteristics of a 50/125 m multimode graded index optical fibre cable for the optical access network. ITU-T G.652 Recommendation ITU-T G.652 (2009), Characteristics of a single-mode optical fibre and cable. ITU-T G.653 Recommendation ITU-T G.653 (2006), Cha
33、racteristics of a dispersion-shifted single-mode optical fibre and cable. 2 G series Supplement 40 (06/2010) ITU-T G.654 Recommendation ITU-T G.654 (2006), Characteristics of a cut-off shifted single-mode optical fibre and cable. ITU-T G.655 Recommendation ITU-T G.655 (2009), Characteristics of a no
34、n-zero dispersion-shifted single-mode optical fibre and cable. ITU-T G.656 Recommendation ITU-T G.656 (2006), Characteristics of a fibre and cable with non-zero dispersion for wideband optical transport. ITU-T G.657 Recommendation ITU-T G.657 (2009), Characteristics of a bending-loss insensitive sin
35、gle-mode optical fibre and cable for the access network. ITU-T G.663 Recommendation ITU-T G.663 (2000), Application related aspects of optical amplifier devices and subsystems. ITU-T G.664 Recommendation ITU-T G.664 (2006), Optical safety procedures and requirements for optical transport systems. IT
36、U-T G.695 Recommendation ITU-T G.695 (2009), Optical interfaces for coarse wavelength division multiplexing applications. ITU-T G-Sup.39 ITU-T G-series Recommendations Supplement 39 (2006), Optical system design and engineering considerations. ITU-T G-Sup.47 ITU-T G-series Recommendations Supplement
37、 47 (2009), General aspects of optical fibre and cable. ITU-T L.12 Recommendation ITU-T L.12 (2008), Optical fibre splices. ITU-T L.14 Recommendation ITU-T L.14 (1992), Measurement method to determine the tensile performance of optical fibre cables under load. ITU-T L.25 Recommendation ITU-T L.25 (1
38、996), Optical fibre cable network maintenance. ITU-T L.27 Recommendation ITU-T L.27 (1996), Method for estimating the concentration of hydrogen in optical fibre cables. ITU-T L.29 Recommendation ITU-T L.29 (2002), As-laid report and maintenance/repair log for marinized terrestrial cable installation
39、. ITU-T L.36 Recommendation ITU-T L.36 (2008), Single-mode fibre optic connectors. ITU-T L.40 Recommendation ITU-T L.40 (2000), Optical fibre outside plant maintenance support, monitoring and testing system. ITU-T L.41 Recommendation ITU-T L.41 (2000), Maintenance wavelength on fibres carrying signa
40、ls. ITU-T L.45 Recommendation ITU-T L.45 (2000), Minimizing the effect on the environment from the outside plant in telecommunication networks. ITU-T L.46 Recommendation ITU-T L.46 (2000), Protection of telecommunication cables and plant from biological attack. ITU-T L.53 Recommendation ITU-T L.53 (
41、2003), Optical fibre maintenance criteria for access networks. ITU-T L.64 Recommendation ITU-T L.64 (2007), ID tag requirements for infrastructure and network elements management. ITU-T L.66 Recommendation ITU-T L.66 (2007), Optical fibre cable maintenance criteria for in-service fibre testing in ac
42、cess networks. G series Supplement 40 (06/2010) 3 ITU-T L.68 Recommendation ITU-T L.68 (2007), Optical fibre cable maintenance support, monitoring and testing system for optical fibre cable networks carrying high total optical power. ITU-T L.74 Recommendation ITU-T L.74 (2008), Maintenance of cable
43、tunnels. ITU-T L.87 Recommendation ITU-T L.87 (2010), Optical fibre cables for drop applications. IEC 60793-1-20 IEC 60793-1-20 (2001), Optical fibres Part 1-20: Measurement methods and test procedures Fibre geometry. IEC 60793-1-21 IEC 60793-1-21 (2001), Optical fibres Part 1-21: Measurement method
44、s and test procedures Coating geometry. IEC 60793-1-22 IEC 60793-1-22 (2001), Optical fibres Part 1-22: Measurement methods and test procedures Length measurement. IEC 60793-1-30 IEC 60793-1-30 (2010), Optical fibres Part 1-30: Measurement methods and test procedures Fibre proof test. IEC 60793-1-31
45、 IEC 60793-1-31 (2010), Optical fibres Part 1-31: Measurement methods and test procedures Tensile strength. IEC 60793-1-32 IEC 60793-1-32 (2010), Optical fibres Part 1-32: Measurement methods and test procedures Coating strippability. IEC 60793-1-33 IEC 60793-1-33 (2001), Optical fibres Part 1-33: M
46、easurement methods and test procedures Stress corrosion susceptibility. IEC 60793-1-34 IEC 60793-1-34 (2006), Optical fibres Part 1-34: Measurement methods and test procedures Fibre curl. IEC 60793-1-40 IEC 60793-1-40 (2001), Optical fibres Part 1-40: Measurement methods and test procedures Attenuat
47、ion. IEC 60793-1-41 IEC 60793-1-41 (2010), Optical fibres Part 1-41: Measurement methods and test procedures Bandwidth. IEC 60793-1-42 IEC 60793-1-42 (2007), Optical fibres Part 1-42: Measurement methods and test procedures Chromatic dispersion. IEC 60793-1-43 IEC 60793-1-43 (2001), Optical fibres P
48、art 1-43: Measurement methods and test procedures Numerical aperture. IEC 60793-1-44 IEC 60793-1-44 (2001), Optical fibres Part 1-44: Measurement methods and test procedures Cut-off wavelength. IEC 60793-1-45 IEC 60793-1-45 (2001), Optical fibres Part 1-45: Measurement methods and test procedures Mo
49、de field diameter. IEC 60793-1-47 IEC 60793-1-47 (2009), Optical fibres Part 1-47: Measurement methods and test procedures Macrobending loss. IEC 60793-1-48 IEC 60793-1-48 (2007), Optical fibres Part 1-48: Measurement methods and test procedures Polarization mode dispersion. IEC 60793-1-49 IEC 60793-1-49 (2006), Optical
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