Presentation on theme: "Evolution of Optical Fibre Types and Cables"— Presentation transcript:
1Evolution of Optical Fibre Types and Cables Jim Matthews IIICorning Incorporated
2Optical Fiber & Cable ITU-T SG15/Question 15: G Optical Fiber & Cable ITU-T SG15/Question 15: G.650 Series RecommendationsG.650 Definition and test methods for the relevant parameters of single-mode fibresG.651 Characteristics of a 50/125 µm multimode graded index optical fibre cableG.652 Characteristics of a single-mode optical fibre cableG.653 Characteristics of a dispersion-shifted single-mode optical fiber cableG.654 Characteristics of a cut-off shifted single-mode optical fibre cableG.655 Characteristics of a non-zero dispersion shifted single-mode optical fibre cableG.scl Characteristics of a fibre and cable with non-zero dispersion for broadband optical transport
3Current Optical Fiber & Cable Activities (SG15) The Recommendation on SM Test Methods was subdivided into three smaller Recommendations:G Definitions and test methods for linear, deterministic attributes (consented)G Definitions and test methods for statistical and non-linear attributes (consented)G Test methods for installed single-mode links (under discussion)40 GB/s applications facilitate PMD DiscussionsPMDQ values Correspondence GroupNew fiber type - Draft Recommendation G.sclNon-zero dispersion-shifted fiber that would operate in the S, C, and L bandsCorrespondence Group preparing a draft for the next mtg.
4ITU-T Study Group 6 Outside Plant 1/6 Environmental issues of telecommunication plant2/6 Fire safety of telecommunication installations3/6 Copper networks for shared multi- services in one multi-pair cable4/6 Infrastructure and installation considerations for cables and equipment5/6 Optical fibre cable network maintenance6/6 Installation of underground telecommunication cables in small trenches7/6 Joint closures, termination and distribution frames, outdoor enclosures and passive components8/6 Optical fibre cable construction9/6 Construction of optical networks in the access area10/6 Marinized Terrestrial Cables as defined in ITU-T Recommendation G.972
5Current Activities - SG6 Outside Plant Focal point for global standards on Outside PlantAccess, metropolitan and inter-office (long-haul, core) and MTCsInstallation, protection, maintenance of optical and other transport networks, systems and equipmentInstallation, protection and maintenance of cables, equipment and accessories for access and long distance networks for new servicesImpact of the infrastructure on the environmentHandbooksRevisions of L-Series Recommendations
6New Collaboration Trial New Discussion Group in SG 6 ( exploder)Participating groups:ITU-T SG6IEC SC 86A Optical Fibres and CablesIEC SC 86B Optical Interconnecting Devices and Passive ComponentsIEC SC 46C Wires and Symmetric CablesObjectives:Identify the areas of common interestIdentify desired ways of cooperation and timescalesCooperation and planning of future work
7Conclusions New Fibre Types New Fibre and Cable Specifications Broad range of applicationsS, C, and L BandsNew Fibre and Cable SpecificationsPolarization Mode Dispersion, Chromatic Dispersion…..New Requirements and Techniques for Outside PlantInstallation, environmental, operational….New Working Methods and CollaborationEfficiency, Speed, and Relevance