BS EN IEC 61300-3-7:2021 – TC
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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
Published By | Publication Date | Number of Pages |
BSI | 2021 | 98 |
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 |
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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 |