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Work item:
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G.654
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Subject/title:
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Characteristics of a cut-off shifted single-mode optical fibre and cable
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Status:
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Under study [Issued from previous study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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Rev.
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Equivalent number:
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-
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Timing:
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2024 (High priority)
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Liaison:
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Q6/15, Q8/15, IEC SC86A
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Supporting members:
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NTT, CLPAJ, China Unicom, MIIT China, Corning, OFS, Hengtong Optic, Prysmian, YOFC, China mobile
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Summary:
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Recommendation ITU-T G.654 describes the geometrical, mechanical and transmission attributes of a single-mode optical fibre and cable which has the zero-dispersion wavelength around 1 300 nm wavelength, and which is loss-minimized and cut-off wavelength shifted at around the 1 550 nm wavelength region.
In the latest version of G.654, descriptions for cut-off wavelength contain some uncertainty and/or mismatch with the latest transmission systems. In addition, there is a slight discrepancy between the cable cut-off wavelength specification for G.654.E and the shortest operation wavelength of G.698.2.
This revision will address the following items:
Validation of existing description regarding cut-off wavelength.
Confirmation of cutoff wavelength measurement accuracy of existing test method.
Revision or refinement of cable cut-off wavelength specification for G.654.E category.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2022-01-18 17:16:53
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Last update:
2024-01-10 11:50:44
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