Evolution of Optical Fibre Types and Cables

1
Evolution of Optical Fibre Types and Cables

• Jim Matthews III
• Corning Incorporated

2
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

3
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.

4
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

5
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

6
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

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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