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BS EN IEC 61300-3-7:2021 – TC

BS EN IEC 61300-3-7:2021 – TC

$217.84

Tracked Changes. Fibre optic interconnecting devices and passive components. Basic test and measurement procedures – Examinations and measurements. Wavelength dependence of attenuation and return loss of single mode components

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BSI 2021 98
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This part of IEC 61300-3 describes methods available to measure the wavelength dependence of attenuation and return loss of two port, single mode passive optical components. It is not, however, applicable to dense wavelength division multiplexing (DWDM) devices. Measurement methods of wavelength dependence of attenuation of DWDM devices are described in IEC 61300-3-29. There are two measurement cases described in this standard: a) Measurement of attenuation only; b) Measurement of attenuation and return loss at the same time.

PDF Catalog

PDF Pages PDF Title
62 undefined
65 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
67 CONTENTS
70 FOREWORD
72 1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and quantity symbols
3.1 Terms and definitions
73 3.2 Abbreviated terms
74 3.3 Quantity symbols
4 General description
4.1 General
4.2 Light source and detector conditions
75 4.3 General explanation of attenuation and return loss
4.3.1 Attenuation
4.3.2 Return loss
76 4.4 Device under test (DUT)
Figures
Figure 1 – Generic explanation of attenuation and return loss
Tables
Table 1 – Device under test categories
77 4.5 Measurement methods
5 Apparatus
5.1 General
Table 2 – Measurement methods
Table 3 – Reference test methods
78 5.2 Optical source
5.2.1 Method A – Broadband light source (BBS)
5.2.2 Method B – Tuneable narrowband light source (TNLS)
5.2.3 Method C – Set of multiple fixed narrowband light sources (NLS)
5.3 Depolarizer
79 5.4 Power detection systems
5.4.1 Method A – Tuneable narrowband detection (TND)
5.4.2 Method B and C – Broadband detection (BBD)
80 5.5 Branching device (BD)
5.6 Termination
5.7 Temporary joint (TJ)
5.8 Test patch cord
Table 4 – Preferred OPM parameters
81 5.9 Reference plugs (RPs)
5.10 Reference adapters (RAs)
6 Procedure
6.1 Method A – Broadband light source
6.1.1 Method A1 – Attenuation only
Figure 2 – Method A1, attenuation-only, reference measurement set-up
Table 5 – Steps of method A1, attenuation only
82 6.1.2 Method A2 – Attenuation and return loss
Figure 3 – Method A1, attenuation-only, DUT measurement set-up
Table 6 – Steps of method A2, attenuation and return loss
83 Figure 4 – Method A2, attenuation and return loss, reference branching device measurement set-up
Figure 5 – Method A2, attenuation and return loss, reference measurement set-up
84 Figure 6 – Method A2, system background measurement set-up
85 6.2 Method B – Tuneable narrowband light source
6.2.1 General
Figure 7 – Method A2, attenuation and return loss, DUT measurement set-up
86 6.2.2 Method B – Attenuation only
6.2.3 Method B – Attenuation and return loss
Figure 8 – Method B, tuneable narrowband light source with and without depolarizer
Table 7 – Steps of method B, attenuation only
Table 8 – Steps of method B, attenuation and return loss
87 6.3 Method C – Set of multiple fixed narrowband light sources
6.3.1 General
6.3.2 Method C1 – Attenuation only
6.3.3 Method C2 – Attenuation and return loss
Figure 9 – Method C, multiple fixed narrowband sources set-up
Table 9 – Steps of method C, attenuation only
Table 10 – Steps of method C2, attenuation and return loss
88 7 Test results
8 Details to be reported
8.1 General
Figure 10 – Example wavelength dependent attenuation plot
Table 11 – Example report for wavelength dependent attenuation and return loss
89 8.2 Total measurement system
8.3 Source
8.3.1 Broadband light source
8.3.2 Tuneable or discrete narrowband light source
8.3.3 Depolarizer
8.4 Detection system
8.4.1 Optical power meter
8.4.2 Optical spectrum analyzer
90 8.4.3 Branching device
8.4.4 Termination
8.4.5 Temporary joint
8.4.6 Reference plug
8.4.7 Reference adapter
91 Annex A (informative)Types of passive optical components
Table A.1 – Functional summary of common passive optical components
92 Annex B (informative)Typical light source characteristics
B.1 General
B.2 Broadband light source
B.3 Tuneable laser source
Table B.1 – Types of broadband light source (BBS) and main characteristics
93 Table B.2 – Types of tuneable light source (TLS) and main characteristics
94 Annex C (informative)Terminations
Table C.1 – Impact of termination values on measured return loss
95 Table C.2 – Impact of termination values on measured return loss uncertainty
96 Bibliography

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