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BS EN IEC 61300-3-7:2021 - TC 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 component, 2021
- A-30342303.pdf [Go to Page]
- undefined
- Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, abbreviated terms and quantity symbols [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 3.3 Quantity symbols
- 4 General description [Go to Page]
- 4.1 General
- 4.2 Light source and detector conditions
- 4.3 General explanation of attenuation and return loss [Go to Page]
- 4.3.1 Attenuation
- 4.3.2 Return loss
- 4.4 Device under test (DUT)
- Figures [Go to Page]
- Figure 1 – Generic explanation of attenuation and return loss
- Tables [Go to Page]
- Table 1 – Device under test categories
- 4.5 Measurement methods
- 5 Apparatus [Go to Page]
- 5.1 General
- Table 2 – Measurement methods
- Table 3 – Reference test methods
- 5.2 Optical source [Go to Page]
- 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
- 5.4 Power detection systems [Go to Page]
- 5.4.1 Method A – Tuneable narrowband detection (TND)
- 5.4.2 Method B and C – Broadband detection (BBD)
- 5.5 Branching device (BD)
- 5.6 Termination
- 5.7 Temporary joint (TJ)
- 5.8 Test patch cord
- Table 4 – Preferred OPM parameters
- 5.9 Reference plugs (RPs)
- 5.10 Reference adapters (RAs)
- 6 Procedure [Go to Page]
- 6.1 Method A – Broadband light source [Go to Page]
- 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 [Go to Page]
- 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
- 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
- Figure 6 – Method A2, system background measurement set-up
- 6.2 Method B – Tuneable narrowband light source [Go to Page]
- 6.2.1 General
- Figure 7 – Method A2, attenuation and return loss, DUT measurement set-up [Go to Page]
- 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
- 6.3 Method C – Set of multiple fixed narrowband light sources [Go to Page]
- 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
- 7 Test results
- 8 Details to be reported [Go to Page]
- 8.1 General
- Figure 10 – Example wavelength dependent attenuation plot
- Table 11 – Example report for wavelength dependent attenuation and return loss
- 8.2 Total measurement system
- 8.3 Source [Go to Page]
- 8.3.1 Broadband light source
- 8.3.2 Tuneable or discrete narrowband light source
- 8.3.3 Depolarizer
- 8.4 Detection system [Go to Page]
- 8.4.1 Optical power meter
- 8.4.2 Optical spectrum analyzer
- 8.4.3 Branching device
- 8.4.4 Termination
- 8.4.5 Temporary joint
- 8.4.6 Reference plug
- 8.4.7 Reference adapter
- Annex A (informative)Types of passive optical components [Go to Page]
- Table A.1 – Functional summary of common passive optical components
- Annex B (informative)Typical light source characteristics [Go to Page]
- 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
- Table B.2 – Types of tuneable light source (TLS) and main characteristics
- Annex C (informative)Terminations [Go to Page]
- Table C.1 – Impact of termination values on measured return loss
- Table C.2 – Impact of termination values on measured return loss uncertainty
- Bibliography [Go to Page]
