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Evolution of Optical Fibre Types and Cables. Jim Matthews III Corning Incorporated. Optical Fiber & Cable ITU-T SG15/Question 15: G.650 Series Recommendations . G.650 Definition and test methods for the relevant parameters of single-mode fibres
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Evolution of Optical Fibre Types and Cables Jim Matthews III Corning Incorporated
Optical Fiber & Cable ITU-T SG15/Question 15: G.650 Series Recommendations • G.650 Definition and test methods for the relevant parameters of single-mode fibres • G.651 Characteristics of a 50/125 µm multimode graded index optical fibre cable • G.652 Characteristics of a single-mode optical fibre cable • G.653 Characteristics of a dispersion-shifted single-mode optical fiber cable • G.654 Characteristics of a cut-off shifted single-mode optical fibre cable • G.655 Characteristics of a non-zero dispersion shifted single-mode optical fibre cable • G.scl Characteristics of a fibre and cable with non-zero dispersion for broadband optical transport
Current Optical Fiber & Cable Activities (SG15) • The Recommendation on SM Test Methods was subdivided into three smaller Recommendations: • G.650.1 Definitions and test methods for linear, deterministic attributes (consented) • G.650.2 Definitions and test methods for statistical and non-linear attributes (consented) • G.650.3 Test methods for installed single-mode links (under discussion) • 40 GB/s applications facilitate PMD Discussions • PMDQ values Correspondence Group • New fiber type - Draft Recommendation G.scl • Non-zero dispersion-shifted fiber that would operate in the S, C, and L bands • Correspondence Group preparing a draft for the next mtg.
ITU-T Study Group 6 Outside Plant • 1/6 Environmental issues of telecommunication plant • 2/6 Fire safety of telecommunication installations • 3/6 Copper networks for shared multi- services in one multi-pair cable • 4/6 Infrastructure and installation considerations for cables and equipment • 5/6 Optical fibre cable network maintenance • 6/6 Installation of underground telecommunication cables in small trenches • 7/6 Joint closures, termination and distribution frames, outdoor enclosures and passive components • 8/6 Optical fibre cable construction • 9/6 Construction of optical networks in the access area • 10/6 Marinized Terrestrial Cables as defined in ITU-T Recommendation G.972
Current Activities - SG6 Outside Plant • Focal point for global standards on Outside Plant • Access, metropolitan and inter-office (long-haul, core) and MTCs • Installation, protection, maintenance of optical and other transport networks, systems and equipment • Installation, protection and maintenance of cables, equipment and accessories for access and long distance networks for new services • Impact of the infrastructure on the environment • Handbooks • Revisions of L-Series Recommendations
New Collaboration Trial • New Discussion Group in SG 6 (e-mail exploder) • Participating groups: • ITU-T SG6 • IEC SC 86A Optical Fibres and Cables • IEC SC 86B Optical Interconnecting Devices and Passive Components • IEC SC 46C Wires and Symmetric Cables • Objectives: • Identify the areas of common interest • Identify desired ways of cooperation and timescales • Cooperation and planning of future work
Conclusions • New Fibre Types • Broad range of applications • S, C, and L Bands • New Fibre and Cable Specifications • Polarization Mode Dispersion, Chromatic Dispersion….. • New Requirements and Techniques for Outside Plant • Installation, environmental, operational…. • New Working Methods and Collaboration • Efficiency, Speed, and Relevance