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PD IEC/TR 62316:2017 Guidance for the interpretation of OTDR backscattering traces for single-mode fibres >
PD IEC/TR 62316:2017 Guidance for the interpretation of OTDR backscattering traces for single-mode fibres, 2017
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- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Backscattering phenomenon [Go to Page]
- 5 Measurement of the backscattered power (OTDR) [Go to Page]
- 6 Interpretation of a backscattering trace [Go to Page]
- Figure 1 – Unidirectional OTDR trace showing splice and/or macro bend loss [Go to Page]
- Figure 2 – Idealized unidirectional OTDR traces corresponding toa non-reflective splice between two fibres [Go to Page]
- Figure 3 – OTDR traces for similar or different fibre types withdifferent MFD and/or different backscatter properties
- Figure 4 – Loss in unidirectional OTDR measurements as function ofthe MFD difference between two spliced fibres
- Figure 5 – Theoretical power through splice loss due to MFD difference (with (1 = 9µm) [Go to Page]
- Table 1 – Summary for six fibre splice combinations of B1.3 and B6based on popular 1 310 nm MFD fibre distributions
- 7 Uncertainties, deviation and resolution [Go to Page]
- Figure 6 – Apparent cumulative unidirectional backscattering mismatch distribution for six splice combinations of B1.3 and B6 reported in Table 1 [Go to Page]
- Figure 7 – Schematic drawing of a fibre with twoconsecutive defects 1 and 2
- Bibliography [Go to Page]