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eLibrary >
S+ IEC 60793-1-45 Ed. 3.0 en:2024 (Redline version) Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter >
S+ IEC 60793-1-45 Ed. 3.0 en:2024 (Redline version) Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter, 2024
- Redline version (English only) [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 General consideration about mode field diameter
- 5 Reference test method
- 6 Apparatus [Go to Page]
- 6.1 General
- 6.2 Light source
- 6.3 Input optics
- 6.4 Input positioner
- 6.5 Cladding mode stripper
- 6.6 High-order mode filter
- 6.7 Output positioner
- 6.8 Output optics
- 6.9 Detector
- 6.10 Computer
- 7 Sampling and specimens samples [Go to Page]
- 7.1 Specimen Sample length
- 7.2 Specimen Sample end face
- 8 Procedure
- 9 Calculations [Go to Page]
- 9.1 Basic formulae
- 9.2 Method A – Direct far-field scan
- 9.3 Method B – Variable aperture in the far field
- 9.4 Method C – Near-field scan
- 10 Results [Go to Page]
- 10.1 Information available with each measurement
- 10.2 Information available upon request
- 11 Specification information
- Annexes [Go to Page]
- Annex A (normative) Requirements specific to method A – Mode field diameter by direct far-field scan [Go to Page]
- A.1 Apparatus [Go to Page]
- A.1.1 General
- A.1.2 Scanning detector assembly – Signal detection electronics
- A.1.3 Computer
- A.2 Procedure
- A.3 Calculations [Go to Page]
- A.3.1 Determine folded power curve
- A.3.2 Compute the top (T) and bottom (B) integrals of Formula (1)
- A.3.3 Complete the calculation
- A.4 Sample data
- Annex B (normative) Requirements specific to method B – Mode field diameter by variable aperture in the far field [Go to Page]
- B.1 Apparatus [Go to Page]
- B.1.1 General
- B.1.2 Output variable aperture assembly
- B.1.3 Output optics system
- B.1.4 Detector assembly and signal detection electronics
- B.2 Procedure
- B.3 Calculations [Go to Page]
- B.3.1 Determine complementary aperture function
- B.3.2 Complete the integration
- B.3.3 Complete the calculation
- B.4 Sample data
- Annex C (normative) Requirements specific to method C – Mode field diameter by near-field scan [Go to Page]
- C.1 Apparatus [Go to Page]
- C.1.1 General
- C.1.2 Magnifying output optics
- C.1.3 Scanning detector
- C.1.4 Detection electronics
- C.2 Procedure
- C.3 Calculations [Go to Page]
- C.3.1 Calculate the centroid
- C.3.2 Fold the intensity profile
- C.3.3 Compute the integrals
- C.3.4 Complete the calculation
- C.4 Sample data
- Annex D (normative) Requirements specific to method D – Mode field diameter by optical time domain reflectometer (OTDR) [Go to Page]
- D.1 General
- D.2 Apparatus [Go to Page]
- D.2.1 OTDR
- D.2.2 Optional auxiliary switches
- D.2.3 Optional computer
- D.2.4 Test sample
- D.2.5 Reference sample
- D.3 Procedure – Orientation and notation
- D.4 Calculations [Go to Page]
- D.4.1 Reference fibre mode field diameter
- D.4.2 Computation of the specimen sample mode field diameter
- D.4.3 Validation
- Annex E (informative) Sample data sets and calculated values [Go to Page]
- E.1 General
- E.2 Method A – Mode field diameter by direct far-field scan
- E.3 Method B – Mode field diameter by variable aperture in the far field
- E.4 Method C – Mode field diameter by near-field scan
- Bibliography
- Figures [Go to Page]
- Figure 1 – Transform relationships between measurement results
- Figure A.1 – Far-field measurement set
- Figure B.1 – Variable aperture by far-field measurement set
- Figure C.1 – Near-field measurement set-ups
- Figure D.1 – Optical switch arrangement
- Figure D.2 – View from reference fibre A
- Figure D.3 – View from reference fibre B
- Figure D.4 – Validation example – Comparison of methods
- Tables [Go to Page]
- Table 1 – Abbreviated terms
- Table E.1 – Sample data, method A – Mode field diameter by direct far-field scan
- Table E.2 – Sample data set, method B – Mode field diameter by variable aperture in the far field
- Table E.3 – Sample data set, method C – Mode field diameter by near-field scan
- International Standard (Bilingual) [Go to Page]
- English [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 General consideration about mode field diameter
- 5 Reference test method
- 6 Apparatus [Go to Page]
- 6.1 General
- 6.2 Light source
- 6.3 Input optics
- 6.4 Input positioner
- 6.5 Cladding mode stripper
- 6.6 High-order mode filter
- 6.7 Output positioner
- 6.8 Output optics
- 6.9 Detector
- 6.10 Computer
- 7 Sampling and samples [Go to Page]
- 7.1 Sample length
- 7.2 Sample end face
- 8 Procedure
- 9 Calculations [Go to Page]
- 9.1 Basic formulae
- 9.2 Method A – Direct far-field scan
- 9.3 Method B – Variable aperture in the far field
- 9.4 Method C – Near-field scan
- 10 Results [Go to Page]
- 10.1 Information available with each measurement
- 10.2 Information available upon request
- 11 Specification information
- Annex A (normative) Requirements specific to method A – Mode field diameter by direct far-field scan [Go to Page]
- A.1 Apparatus [Go to Page]
- A.1.1 General
- A.1.2 Scanning detector assembly – Signal detection electronics
- A.1.3 Computer
- A.2 Procedure
- A.3 Calculations [Go to Page]
- A.3.1 Determine folded power curve
- A.3.2 Compute the top (T) and bottom (B) integrals of Formula (1)
- A.3.3 Complete the calculation
- A.4 Sample data
- Annex B (normative) Requirements specific to method B – Mode field diameter by variable aperture in the far field [Go to Page]
- B.1 Apparatus [Go to Page]
- B.1.1 General
- B.1.2 Output variable aperture assembly
- B.1.3 Output optics system
- B.1.4 Detector assembly and signal detection electronics
- B.2 Procedure
- B.3 Calculations [Go to Page]
- B.3.1 Determine complementary aperture function
- B.3.2 Complete the integration
- B.3.3 Complete the calculation
- B.4 Sample data
- Annex C (normative) Requirements specific to method C – Mode field diameter by near-field scan [Go to Page]
- C.1 Apparatus [Go to Page]
- C.1.1 General
- C.1.2 Magnifying output optics
- C.1.3 Scanning detector
- C.1.4 Detection electronics
- C.2 Procedure
- C.3 Calculations [Go to Page]
- C.3.1 Calculate the centroid
- C.3.2 Fold the intensity profile
- C.3.3 Compute the integrals
- C.3.4 Complete the calculation
- C.4 Sample data
- Annex D (normative) Requirements specific to method D – Mode field diameter by optical time domain reflectometer (OTDR) [Go to Page]
- D.1 General
- D.2 Apparatus [Go to Page]
- D.2.1 OTDR
- D.2.2 Optional auxiliary switches
- D.2.3 Optional computer
- D.2.4 Test sample
- D.2.5 Reference sample
- D.3 Procedure – Orientation and notation
- D.4 Calculations [Go to Page]
- D.4.1 Reference fibre mode field diameter
- D.4.2 Computation of the sample mode field diameter
- D.4.3 Validation
- Annex E (informative) Sample data sets and calculated values [Go to Page]
- E.1 General
- E.2 Method A – Mode field diameter by direct far-field scan
- E.3 Method B – Mode field diameter by variable aperture in the far field
- E.4 Method C – Mode field diameter by near-field scan
- Bibliography
- Figures [Go to Page]
- Figure 1 – Transform relationships between measurement results
- Figure A.1 – Far-field measurement set
- Figure B.1 – Variable aperture by far-field measurement set
- Figure C.1 – Near-field measurement set-ups
- Figure D.1 – Optical switch arrangement
- Figure D.2 – View from reference fibre A
- Figure D.3 – View from reference fibre B
- Figure D.4 – Validation example – Comparison of methods
- Tables [Go to Page]
- Table 1 – Abbreviated terms
- Table E.1 – Sample data, method A – Mode field diameter by direct far-field scan
- Table E.2 – Sample data set, method B – Mode field diameter by variable aperture in the far field
- Table E.3 – Sample data set, method C – Mode field diameter by near-field scan
- Français [Go to Page]
- SOMMAIRE
- AVANT-PROPOS
- 1 Domaine d’application
- 2 Références normatives
- 3 Termes, définitions et termes abrégés [Go to Page]
- 3.1 Termes et définitions
- 3.2 Termes abrégés
- 4 Considérations générales concernant le diamètre du champ de mode
- 5 Méthode d’essai de référence
- 6 Appareillage [Go to Page]
- 6.1 Généralités
- 6.2 Source de lumière
- 6.3 Système optique d’entrée
- 6.4 Dispositif de positionnement d’entrée
- 6.5 Extracteur de modes de gaine
- 6.6 Filtre des modes d’ordre supérieur
- 6.7 Dispositif de positionnement de sortie
- 6.8 Dispositif optique de sortie
- 6.9 Détecteur
- 6.10 Calculateur
- 7 Échantillonnage et échantillons [Go to Page]
- 7.1 Longueur d’échantillon
- 7.2 Extrémité de l’échantillon
- 8 Procédure
- 9 Calculs [Go to Page]
- 9.1 Formules de base
- 9.2 Méthode A – Exploration directe en champ lointain
- 9.3 Méthode B – Ouverture variable en champ lointain
- 9.4 Méthode C – Exploration en champ proche
- 10 Résultats [Go to Page]
- 10.1 Informations disponibles pour chaque mesure
- 10.2 Informations disponibles sur demande
- 11 Informations à mentionner dans la spécification
- Annexe A (normative) Exigences spécifiques à la méthode A –Diamètre du champ de mode par la technique de l’exploration directe en champ lointain [Go to Page]
- A.1 Appareillage [Go to Page]
- A.1.1 Généralités
- A.1.2 Ensemble détecteur à balayage – Système électronique de détection des signaux
- A.1.3 Calculateur
- A.2 Procédure
- A.3 Calculs [Go to Page]
- A.3.1 Déterminer la courbe de puissance symétrisée par moyennes des écarts
- A.3.2 Calculer l’intégrale du numérateur (T) et l’intégrale du dénominateur (B) de la Formule (1)
- A.3.3 Effectuer le calcul
- A.4 Données sur échantillon
- Annexe B (normative) Exigences spécifiques à la méthode B –Diamètre du champ de mode par la technique de l’ouverture variable en champ lointain [Go to Page]
- B.1 Appareillage [Go to Page]
- B.1.1 Généralités
- B.1.2 Ensemble à ouvertures variables de sortie
- B.1.3 Dispositifs optiques de sortie
- B.1.4 Ensemble détecteur et dispositif électronique de détection des signaux
- B.2 Procédure
- B.3 Calculs [Go to Page]
- B.3.1 Déterminer la fonction complémentaire d’ouverture
- B.3.2 Effectuer l’intégration
- B.3.3 Effectuer le calcul
- B.4 Données sur échantillon
- Annexe C (normative) Exigences spécifiques à la méthode C –Diamètre du champ de mode par la technique de l’exploration en champ proche [Go to Page]
- C.1 Appareillage [Go to Page]
- C.1.1 Généralités
- C.1.2 Ensembles optiques de grossissement
- C.1.3 Détecteur à balayage
- C.1.4 Systèmes électroniques de détection
- C.2 Procédure
- C.3 Calculs [Go to Page]
- C.3.1 Calculer le barycentre
- C.3.2 Symétriser le profil d’intensité
- C.3.3 Calculer les intégrales
- C.3.4 Effectuer le calcul
- C.4 Données sur échantillon
- Annexe D (normative) Exigences spécifiques à la méthode D –Diamètre du champ de mode par réflectomètre optique dans le domaine temporel (OTDR) [Go to Page]
- D.1 Généralités
- D.2 Appareillage [Go to Page]
- D.2.1 OTDR
- D.2.2 Commutateurs auxiliaires facultatifs
- D.2.3 Calculateur facultatif
- D.2.4 Échantillon d’essai
- D.2.5 Échantillon de référence
- D.3 Procédure – Orientation et notation
- D.4 Calculs [Go to Page]
- D.4.1 Diamètre du champ de mode de la fibre de référence
- D.4.2 Calcul du diamètre du champ de mode de l’échantillon
- D.4.3 Validation
- Annexe E (informative) Ensemble de données sur échantillon et valeurs calculées [Go to Page]
- E.1 Généralités
- E.2 Méthode A – Diamètre du champ de mode par exploration directe en champ lointain
- E.3 Méthode B – Diamètre du champ de mode par la méthode de l’ouverture variable en champ lointain
- E.4 Méthode C – Diamètre du champ de mode par exploration en champ proche
- Bibliographie
- Figures [Go to Page]
- Figure 1 – Relations de transformées entre les résultats de mesure
- Figure A.1 – Montage de mesure en champ lointain
- Figure B.1 – Montage de mesure par ouverture variable en champ lointain
- Figure C.1 – Montages de mesure en champ proche
- Figure D.1 – Montage de commutation optique
- Figure D.2 – Vue depuis la fibre de référence A
- Figure D.3 – Vue depuis la fibre de référence B
- Figure D.4 – Exemple de validation: comparaison de méthodes
- Tableaux [Go to Page]
- Tableau 1 – Termes abrégés
- Tableau E.1 – Données sur échantillon, méthode A – Diamètre du champ de mode par exploration directe en champ lointain
- Tableau E.2 – Données sur échantillon, méthode B – Diamètre du champ de mode par la méthode de l’ouverture variable en champ lointain
- Tableau E.3 – Données sur échantillon, méthode C – Diamètre du champ de mode par exploration en champ proche [Go to Page]
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