Optical fibre splices |
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Recommendation ITU-T L.400/L.12 specifies splices of single-mode and multimode optical fibres. It describes suitable procedures for splicing that should be carefully followed in order to obtain reliable splices between single optical fibres or ribbons. The procedures apply to both single optical fibres and ribbons (mass splicing).
Splices are critical points in the optical fibre network, because they strongly affect the quality and lifetime of links. In fact, the splice should ensure high quality and stability of performance with time. High quality in splicing is usually characterized by low splice loss and tensile strength near that of the fibre proof test level. Splices should be stable over the design life of the optical fibre link under its expected environmental conditions.
At present two technologies, fusion and mechanical, can be used for splicing glass optical fibres and the choice between them depends upon the expected functional performance and considerations of installation and maintenance. These splices are designed to provide permanent connections.
The following elements have been modified in this edition of Recommendation ITU-T L.400/L.12:
– maximum attenuation of fibre splices depending on the alignment method (active core, active cladding and passive V-groove alignment);
– maximum attenuation for mechanical splices;
– validation of splicing procedure is added with average and maximum attenuation (97% of the splices) of fibre splices;
– the appendix with Japanese experience is removed;
– inclusion of Appendix II, which shows the increase in attenuation when splicing different types of optical fibres by taking into account the mode field diameter mismatch, the core-cladding concentricity and the cladding diameter;
– inclusion of Appendix III, which explains the fibre imaging process in fusion splicing machines.
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Citation: |
https://handle.itu.int/11.1002/1000/14939 |
Series title: |
L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant L.400-L.429: Passive optical devices |
Approval date: |
2022-02-13 |
Approval process: | AAP |
Status: |
In force |
Maintenance responsibility: |
ITU-T Study Group 15 |
Further details: |
Patent statement(s)
Development history
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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L Suppl. 4 (04/2016)
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Guidelines for developing a sustainable e-waste management system
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In force
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here
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here
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here
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L Suppl. 5 (12/2014)
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Life-cycle management of ICT goods
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In force
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here
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here
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here
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L Suppl. 20 (10/2015)
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Green public ICT procurement
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In force
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here
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here
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here
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L Suppl. 21 (04/2016)
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Implementation guidance for small- and medium-sized enterprises on information and communication technology supply chain due diligence concerning conflict minerals
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In force
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here
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here
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here
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L Suppl. 27 (10/2016)
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Supplement on success stories on e-waste management
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In force
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here
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here
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here
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L Suppl. 28 (10/2016)
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Circular economy in information and communication technology; definition of approaches, concepts and metrics
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In force
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here
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here
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here
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L Suppl. 32 (10/2016)
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Supplement for eco-specifications and rating criteria for mobile phones eco-rating programmes
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In force
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here
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here
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here
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L Suppl. 33 (10/2016)
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Assessment of energy consumption of information and communication technology services
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In force
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here
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here
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here
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L Suppl. 35 (06/2017)
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Framework of disaster management for network resilience and recovery
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In force
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here
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here
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here
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L Suppl. 41 (05/2021)
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Requirements on energy efficiency measurement models and the role of artificial intelligence and big data
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In force
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here
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here
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here
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L Suppl. 42 (05/2021)
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Guidelines on the environmental efficiency of machine learning processes in supply chain management
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In force
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here
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here
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here
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L Suppl. 43 (05/2021)
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Smart energy saving of 5G base stations: Traffic forecasting and strategy optimization of 5G wireless network energy consumption based on artificial intelligence and other emerging technologies
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In force
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here
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here
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here
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L Suppl. 46 (12/2021)
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Definitions and recent trends in circular cities
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In force
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here
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here
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here
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L Suppl. 47 (07/2022)
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Examples of resource saving within the information and communication technology sector
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In force
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here
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here
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here
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L Suppl. 49 (07/2022)
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Overview on adaptation to climate change for information and communication technology networks
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In force
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here
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here
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here
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L Suppl. 52 (10/2022)
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Computer processing, data management and energy perspective
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In force
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here
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here
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here
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L Suppl. 53 (10/2022)
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Guidelines on the implementation of environmental efficiency criteria for artificial intelligence and other emerging technologies
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In force
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here
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here
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here
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L Suppl. 54 (10/2022)
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Guidance for assessing the greenhouse gas emissions consequences of the financial effects generated by information and communication technology
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In force
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here
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here
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here
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L Suppl. 55 (10/2022)
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Environmental efficiency and impacts on United Nations Sustainable Development Goals of data centres and cloud computing
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In force
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here
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here
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here
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L Suppl. 56 (10/2022)
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Guidelines for connecting cities and communities with the Sustainable Development Goals
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In force
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here
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here
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here
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Title |
Approved on |
Download |
Guide on the use of ITU-T L-series Recommendations related to optical technologies for outside plant
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2024
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Guide on the use of ITU-T L-series Recommendations related to optical technologies for outside plant
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2022
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here
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Guide on the use of ITU-T L-series Recommendations related to optical technologies for outside plant
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2020
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here
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Partnering for solutions: ICTs in Smart Water Management
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2014
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here
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Resilient pathways: the adaptation of the ICT sector to climate change
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2014
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here
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Greening ICT Supply Chains – Survey on Conflict Minerals Due Diligence Initiatives
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2012
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here
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Review of Mobile Handset Eco-Rating Schemes
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2012
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here
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Boosting Energy Efficiency through Smart Grids
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2012
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here
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