1、BRITISH STANDARDBS EN 61755-3-5:2006Fibre optic connector optical interfaces Part 3-5: Optical interface 2,5 mm and 1,25 mm diameter cylindrical PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibreThe European Standard EN 61755-3-5:2006 has the status of a British
2、StandardICS 33.180.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61755-3-5:2006This British Standard was published under the authority of
3、the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50213 2National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61755-3-5:2006. It is identical with IEC 61755-3-5:2006. The UK participation in its preparation was entrusted
4、by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive components.A list of organizations represented on GEL/86/2 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a
5、 contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61755-3-5 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committ
6、ee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC me
7、mbers. Ref. No. EN 61755-3-5:2006 E ICS 33.180.20 English version Fibre optic connector optical interfaces Part 3-5: Optical interface - 2,5 mm and 1,25 mm diameter cylindrical PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre (IEC 61755-3-5:2006) Interfaces opt
8、iques de connecteurs pour fibres optiques Partie 3-5: Interfaces optiques - Frules PC composites cylindriques de diamtre 2,5 mm et 1,25 mm, utilisant un alliage Cu-Ni comme matriau entourant la fibre, fibres unimodales (CEI 61755-3-5:2006) Optische Schnittstellen von Lichtwellenleiter-Steckverbinder
9、n Teil 3-5: Optische Schnittstelle - Zylindrische PC-Composite-Ferrulen mit 2,5 mm und 1,25 mm Durchmesser fr Einmodenfaser, mit Cu-Ni-Legierung als Material fr die Faserfassung (IEC 61755-3-5:2006) This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply wit
10、h the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretari
11、at or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the o
12、fficial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Roman
13、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 86B/2258/CDV, future edition 1 of IEC 61755-3-5, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC Paral
14、lel Unique Acceptance Procedure and was approved by CENELEC as EN 61755-3-5 on 2006-12-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-09-01 latest date by which the
15、national standards conflicting with the EN have to be withdrawn (dow) 2009-12-01 _ Endorsement notice The text of the International Standard IEC 61755-3-5:2006 was approved by CENELEC as a European Standard without any modification. _ EN 61755-3-5:2006 2 CONTENTS FOREWORD.5 1 Scope.9 2 Description .
16、9 3 Interface parameters 11 Annex A (informative) .17 Bibliography19 EN 61755-3-5:2006 3 FIBRE OPTIC CONNECTOR OPTICAL INTERFACES Part 3-5: Optical interface 2,5 mm and 1,25 mm diameter cylindrical PC composite ferrule using Cu-Ni-alloy as fibre surrounding material, single mode fibre 1 Scope This p
17、art of IEC 61755 defines dimensional limits and material properties of a 2,5 mm and a 1,25 mm diameter cylindrical composite ferrule optical interface to meet specific requirements for PC fibre-to-fibre interconnection. The composite ferrule uses different materials in the end face contact zone and
18、in the ferrule to sleeve contact zone. The specified materials for each zone are Zirconia (ZrO2) for the ferrule to sleeve contact zone and Cu-Ni-alloy for the end face contact zone. Ferrules made from the material specified in this document are suitable for use in categories C, U and O as defined i
19、n IEC 61753-1. NOTE If mated within the same family (cylindrical PC ferrule) the ferrules specified in this document are intended to have the same optical attenuation performance grade for connections with all ferrules described in IEC 61755-3 documents. 2 Description The performance of a cylindrica
20、l ferrule optical interface is determined by the accuracy with which the optical datum targets of two mating ferrules are aligned with each other. There are three conditions affecting the alignment of two optical datum targets, lateral offset, angular offset and longitudinal offset. Parameters influ
21、encing the lateral and angular offset of the optical fibre axes include ferrule outside diameter; fibre hole concentricity relative to the ferrule outside diameter; fibre hole angle relative to outside diameter axis; fibre cladding diameter to fibre hole clearance; alignment sleeve inside diameter;
22、fibre core concentricity relative to the cladding diameter; fibre core orientation relative to keying feature. Parameters influencing the longitudinal offset of the optical fibre axes include end face spherical radius; end face spherical radius apex offset; fibre undercut; axial force on ferrule end
23、 face; ferrule and fibre material physical constants; alignment sleeve frictional force; keying accuracy. EN 61755-3-5:2006 4 3 Interface parameters The optical interface dimensions are shown in Figures 1 and 3, while Figure 2 underlines fibre core location. The parameter values are detailed in Tabl
24、es 1 and 2. No sharp edge K D J Ferrule axis Fibre axis E IEC 2112/06 Figure 1 Interface dimensions for PC ferrule FIEC 1315/06 Figure 2 Fibre core location EN 61755-3-5:2006 5 CAB IEC 2113/06 Figure 3 Interface dimension of the end face contact zone Table 1 Optical interface parameter values for 2,
25、5 mm diameter PC ferrule Parameter values Grade A Grade B Grade C Grade D Remarks Ref. Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Ab-200 a-200a -200 anm B 7 20 7 20 7 20 Radius, mm C 0 70 0 70 0 70 m D 2,498 5 2,499 5 2,498 5 2,499 5 2,498 5 2,499 5 Diameter, mm E 0 0,6 0 0,8 0
26、0,6 Degrees F 0 0,000 15 0 0,000 3 0 0,001 6 Radius, mm J 0,8 - 0,8 - 0,8 - mm K - 1,8 - 1,8 - 1,8 mm aContact force 4,9 N minimum. Ferrule material: Cu-Ni-alloy. Nominal material physical constant values: Youngs modulus, E = 127 GPa, Poissons ratio, = 0,35. ()1301010108621326266950Maximum+=CBBB,bA
27、negative value indicates fibre protrusion. EN 61755-3-5:2006 6 Table 2 Optical interface parameter values for 1,25 mm diameter PC ferrule Parameter values Grade A Grade B Grade C Grade D Remarks Ref. Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Ab-200 a-200 a-200 anm B 7 20 7 20 7
28、 20 Radius, mm C 0 70 0 70 0 70 m D 1,2485 1,2495 1,2485 1,2495 1,2485 1,2495 Diameter, mm E 0 0,6 0 0,8 0 0,6 Degrees F 0 0,00015 0 0,0003 0 0,0016 Radius, mm J 0,6 - 0,6 - 0,6 - mm K - 1,0 - 1,0 - 1,0 mm aContact force 2,9 N minimum. Ferrule material: Cu-Ni-alloy. Nominal material physical constan
29、t values: Youngs modulus, E = 127 GPa, Poissons ratio, = 0,35.()1301010105151326266950Maximum+=CBBB,bA negative value indicates fibre protrusion. EN 61755-3-5:2006 7 Annex A (informative) The maximum allowed spherical fibre undercut AMaximumis determined by the interaction of the parameters influenc
30、ing the longitudinal offset of the optical fibre axes as defined by Equation 1. PFWDTE32626k1Maximum101010 2DDCBBBkA +=1where AMaximumis the maximum spherical undercut for physical contact (nm); k1is the coefficient based on ferrule contact force and material properties; k2is the exponent based on f
31、errule contact force and material properties; B is the end face spherical radius (mm); C is the apex offset from fibre axis (m); DDTEis the differential thermal expansion between the ferrule material and the silica fibre at maximum operating temperature (nm). DDTEbetween the composite ferrule materi
32、al and the silica fibre at maximum operating temperature is 100 nm. DPFWis the permanent fibre withdrawal that exceeds the transient fibre movement predicted by the first three terms in 1 (nm). DPFWfor the composite ferrule is 30 nm. End face deformation term as a function of contact force, end face
33、 radius and material properties. 21kBk 2 Geometric compensation term for the offset of the ferrule apex from the fibre axis. 32626101010 + CBB A.3 EN 61755-3-5:2006 8 Bibliography IEC 61753-1, Fibre optic interconnecting devices and passive components Part 1: General and guidance for performance sta
34、ndards 1IEC 61755-3 (all parts), Fibre optic connector optical interfaces Part 3: Optical interface _ 1 To be published. EN 61755-3-5:2006 9 IEC 61753-1 NOTE Harmonized as EN 61753-1:2001 (not modified). IEC 61755-3 NOTE Harmonized in EN 61755-3 series (not modified). BS EN 61755-3-5:2006BSI389 Chis
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