BS EN 61755-3-8-2009 Fibre optic interconnecting devices and passive Components - Fibre optic connector optical interfaces - Optical interface 2 5 mm and 1 25 mm diameter cylindrict.pdf

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1、Fibre optic interconnectingdevices and passive components Fibre optic connector opticalinterfaces Part 3-8: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-APC composite ferrule using titanium as fibre surrounding material, single mode fibreBS EN 61755-3-8:2009raising sta

2、ndards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN 61755-3-8:2009. It isidentical to IEC 61755-3-8:2009.The UK participation in its preparation was entrusted by Technical Com

3、mitteeGEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnectingdevices and passive components.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Use

4、rs are responsible for its correct application. BSI 2009ISBN 978 0 580 59158 7ICS 33.180.20BRITISH STANDARDBS EN 61755-3-8:2009Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy C

5、ommittee on 31 March 2009. Amendments issued since publicationAmd. No. Date Text affectedEUROPEAN STANDARD EN 61755-3-8 NORME EUROPENNE EUROPISCHE NORM February 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr

6、 Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61755-3-8:2009 E ICS 33.180.20 English version Fibre optic interconnecting devices and passiv

7、e components - Fibre optic connector optical interfaces - Part 3-8: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-APC composite ferrule using titanium as fibre surrounding material, single mode fibre (IEC 61755-3-8:2009) Dispositifs dinterconnexion et composants passifs

8、 fibres optiques - Interfaces optiques de connecteurs pour fibres optiques - Partie 3-8: Interfaces optiques, frules composites cylindriques APC-angle de 8 degrs, de diamtre 2,5 mm et 1,25 mm, utilisant le titane comme matriau entourant la fibre, fibres unimodales (CEI 61755-3-8:2009) Lichtwellenlei

9、ter -Verbindungselemente und passive Bauteile - Optische Schnittstellen von Lichtwellenleiter-Steckverbindern - Teil 3-8: Optische Schnittstelle - Zylindrische 8 Grad abgeschrgte APC-Composite-Ferrulen mit 2,5 mm und 1,25 mm Durchmesser fr Einmodenfaser, mit Titan als Material fr die Faserfassung, E

10、inmoden LWL (IEC 61755-3-8:2009) This European Standard was approved by CENELEC on 2009-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-t

11、o-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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 u

12、nder the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, F

13、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61755-3-8:2009 - 2 - Foreword The text of document 86B/2769/FDIS, future editi

14、on 1 of IEC 61755-3-8, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61755-3-8 on 2009-02-01. The following dates were fixed: latest date by which the EN has

15、 to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-02-01 _ Endorsement notice The text of the International Standard IEC 61755-3-8

16、:2009 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61753-1 NOTE Harmonized as EN 61753-1:2007 (not modified). IEC 61755-3 NOTE Harmonized in EN 61755-3 series

17、(partially modified). _ BS EN 61755-3-8:2009 2 61755-3-8 IEC:2009 CONTENTS 1 Scope.5 2 Description .5 3 Interface parameters for APC ferrule independent from the ferrule material6 Annex A (informative) .9 Bibliography10 Figure 1 Interface dimensions for APC ferrule6 Figure 2 Fibre core location .6 F

18、igure 3 Interface dimension of the end face contact zone.7 Table 1 Optical interface parameter values for 2,5 mm diameter APC ferrule .7 Table 2 Optical interface parameter values for 1,25 mm diameter APC ferrule .8 BS EN 61755-3-8:200961755-3-8 IEC:2009 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PAS

19、SIVE COMPONENTS FIBRE OPTIC CONNECTOR OPTICAL INTERFACES Part 3-8: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-APC composite ferrule using titanium as fibre surrounding material, single mode fibre 1 Scope This part of IEC 61755 defines dimensional limits and material

20、properties of a 2,5 mm and a 1,25 mm diameter cylindrical composite ferrule optical interface to meet specific requirements for APC fibre-to-fibre interconnection. The composite ferrule uses different materials in the end face contact zone and in ferrule to sleeve contact zone. The specified materia

21、ls for each zone are zirconia (ZrO2) for the ferrule to sleeve contact zone and titanium for the end face contact zone. Ferrules made from the material specified in this standard are suitable for use in categories C, U, E and O as defined in IEC 61753-1. NOTE If mated within the same family (cylindr

22、ical APC ferrule), the ferrules specified in this standard are intended to have the same optical attenuation performance grade for connections with all ferrules described in different parts of IEC 61775-3. 2 Description The performance of a cylindrical ferrule optical interface is determined by the

23、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 influencing the lateral and angular offset of the opti

24、cal fibre axes include the following: 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; fibre core concentricity relative

25、to the cladding diameter; fibre core orientation relative to keying feature. Parameters influencing the longitudinal offset of the optical fibre axes include the following: end face spherical radius; end face spherical radius apex offset; fibre undercut; axial force on ferrule end face; ferrule and

26、fibre material physical constants; alignment sleeve frictional force; keying accuracy. BS EN 61755-3-8:2009 6 61755-3-8 IEC:2009 3 Interface parameters for APC ferrule independent from the ferrule material No sharp edge KD J Ferrule axis Fibre axis IEC 2348/08 Figure 1 Interface dimensions for APC f

27、errule FIEC 1315/06 Figure 2 Fibre core location F defines the radial coordinate limits of the optical fibre core relative to the optical datum of the ferrule. BS EN 61755-3-8:200961755-3-8 IEC:2009 7 Fibre axis Ferrule axis Angled-PC reference plane CE8B A IEC 2349/08 Figure 3 Interface dimension o

28、f the end face contact zone Table 1 Optical interface parameter values for 2,5 mm diameter APC ferrule Parameter values Grade A Grade B Grade C Grade D Remarks Ref. Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum A 200 a200 a200 abnm B 7 20 7 20 7 20 Radius, mm C 0 70 0 70 0 70 m D 2

29、,4985 2,4995 2,4985 2,4995 2,4985 2,4995 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 0,8 - 0,8 - 0,8 - Diameter, mm K - 1,8 - 1,8 - 1,8 mm aContact force 4,9 N minimum. Ferrule material: titanium. Nominal material physical constant values: Youngs Modulus, E =

30、105 GPa, Poissons Ratio, = 0,34. ()801010102115326267650Maximum+=CBBB,bA negative value indicates fibre protrusion. BS EN 61755-3-8:2009 8 61755-3-8 IEC:2009 Table 2 Optical interface parameter values for 1,25 mm diameter APC ferrule Parameter Values Grade A Grade B Grade C Grade D Remarks Ref. Mini

31、mum Maximum Minimum Maximum Minimum Maximum Minimum Maximum A 200 a200 a200 abnm B 7 20 7 20 7 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 - Diameter, mm K - 1,0 - 1,0

32、 - 1,0 mm aContact force 2,9 N minimum. Ferrule material: titanium. Nominal material physical constant values: Youngs Modulus, E = 105 GPa, Poissons Ratio, = 0,34. ()801010101880326267650Maximum+=CBBB,bA negative value indicates fibre protrusion. BS EN 61755-3-8:200961755-3-8 IEC:2009 9 Annex A (inf

33、ormative) Maximum allowed spherical fibre undercut The maximum allowed spherical fibre undercut AMaximumis determined by the interaction of the parameters influencing the longitudinal offset of the optical fibre axes as defined by A.1. PFWDTE32626k1Maximum101010 2DDCBBBkA += A.1 where AMaximumis the

34、 maximum spherical undercut for physical contact (nm); k1is the coefficient based on ferrule contact force and material properties; k2is the exponent based on ferrule contact force and material properties; B is the end face spherical radius (mm); C is the apex offset from fibre axis (m); DDTEis the

35、differential thermal expansion between the ferrule material and the silica fibre at maximum operating temperature (nm). DDTEbetween the Ti-composite ferrule material and the silica fibre at maximum operating temperature is 50 nm; DPFWis the permanent fibre withdrawal that exceeds the transient fibre

36、 movement predicted by the first three terms in A.1 (nm). DPFWfor the Ti-composite ferrule is 30 nm. End face deformation term as a function of contact force, end face radius and material properties. 21kBk A.2 Geometric compensation term for the offset of the ferrule apex from the fibre axis. 326261

37、01010 + CBB A.3 BS EN 61755-3-8:2009 10 61755-3-8 IEC:2009 Bibliography IEC 61753-1, Fibre optic interconnecting devices and passive components performance standard Part 1: General and guidance for performance standards IEC 61755-3 (all parts), Fibre optic connector optical interfaces Part 3: Optical interface _ BS EN 61755-3-8:2009This page deliberately left blank

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