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International Electrotechnical Commission, 07/01/2023
Publisher: IEC
File Format: PDF
$117.00$234.00
Published:01/07/2023
Pages:32
File Size:1 file , 1.3 MB
Note:This product is unavailable in Ukraine, Russia, Belarus
This part of IEC 60793 establishes uniform requirements for measuring the cut-off wavelength of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes.
This document gives methods for measuring the cut-off wavelength for uncabled or cabled single mode telecom fibre. These procedures apply to all category B and C fibre types.
There are three methods of deployment for measuring the cut-off wavelength: • method A: cable cut-off using uncabled fibre 22 m long sample, λ cc; • method B: cable cut-off using cabled fibre 22 m long sample, λ cc; • method C: fibre cut-off using uncabled fibre 2 m long sample, λ c.
All methods require a reference measurement. There are two reference-scan techniques, either or both of which can be used with all methods: • bend-reference technique; • multimode-reference technique using category A1(OM1-OM5) multimode fibre.
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