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About This Item
Full Description
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 standard gives the methods for measuring the cut-off wavelength of fibre and cable
There are two methods for measuring cable cut-off wavelength, λcc:
• Method A: using uncabled fibre;
• Method B: using cabled fibre.
There is only one method (Method C) for measuring fibre cut-off wavelength, λc.
The test method in this standard describes procedures for determining the cut-off wavelength of a sample fibre in either an uncabled condition (λc) or in a cable (λcc). Three default configurations are given here: any different configuration will be given in a detail specification. These procedures apply to all category B and C fibre types (see Normative references).
All methods require a reference measurement. There are two reference-scan techniques, either or both of which may be used with all methods:
• bend-reference technique;
• multimode-reference technique using category A1 multimode fibre.
Document History
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TIA ANSI/TIA-455-80-D
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IEC-60793-1-44 Optical Fibres-Part 1-44: Measurement Methods and Test Procedures- Cut-off Wavelength- Most Recent
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TIA ANSI/TIA-455-80-C
FOTP-80 IEC-60793-1-44 Optical Fibres – Part 1-44: Measurement Methods and Test Procedures – Cut-off Wavelength- Historical Version
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TIA ANSI/TIA/EIA-455-80-B
FOTP-80 Measurement of Cut-Off Wavelength of Single-Mode Fiber by Transmitted Power- Historical Version
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TIA TIA-455-80A
FOTP-80 Measuring Cutoff Wavelength of Uncabled Single-Mode Fiber by Transmitted Power- Historical Version