1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFibre optic connector opticalinterfaces Part 3-2: Optical interface, 2,5 mm and 1,25 mmdiameter cylindrical full zirconia ferrules for 8 degreesangled-PC single mode fibresBS EN
2、61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 61755-3-2:2009. It wasderived by CENELEC from IEC 61755-3-2:2006, incorporating corrigendumJanuary 2009.The CENELEC c
3、ommon modifications have been implemented at the appro-priate places in the text and are indicated by tags (e.g. ).The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnectingdevices and passive components.A l
4、ist 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. Users are responsible for its correct application. BSI 2010ISBN 978 0 580 53572 7ICS 33.180.20Compliance with a Britis
5、h Standard cannot confer immunity fromlegal obligations.Amendments/corrigenda issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61755-3-2:2009The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by IEC corrigendum Jan
6、uary 2009 isindicated in the text by .This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61755-3-2 NORME EUROPEN
7、NE EUROPISCHE NORM February 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any
8、form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61755-3-2:2009 E ICS 33.180.20 English version Fibre optic connector optical interfaces - Part 3-2: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules for 8 degrees angled-PC single mode fibres (
9、IEC 61755-3-2:2006, modified + corrigendum 2009) Interfaces optiques de connecteurs pour fibres optiques - Partie 3-2: Interfaces optiques, frules PC en zircone plein cylindrique de diamtre 2,5 mm et 1,25 mm, pour fibres unimodales angle PC de 8 degrs (CEI 61755-3-2:2006, modifie + corrigendum 2009)
10、 Optische Schnittstellen fr Lichtwellenleiter-Steckverbinder - Teil 3-2:Optische Schnittstellen mit 8 abgeschrgten Zirkonium-Ferrulen mit 2,5 mm und 1,25 mm Durchmesser fr Einmodenfasern mit physikalischem Kontakt (IEC 61755-3-2:2006, modifiziert + Corrigendum 2009) This European Standard was approv
11、ed by CENELEC on 2008-12-01. 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-to-date lists and bibliographical references concerning such nation
12、al 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 under the responsibility of a CENELEC member into its own language
13、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
14、Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSIEN 61755-3-2:2009 - 2 - Foreword The text of the
15、 International Standard IEC 61755-3-2:2006, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, together with the common modifications prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic interconnect, passive and connectorised com
16、ponents, was submitted to the formal vote and was approved by CENELEC as EN 61755-3-2 on 2008-12-01. 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) 2009-12-01 latest date by
17、which the national standards conflicting with the EN have to be withdrawn (dow) 2011-12-01 _ Endorsement notice The text of the International Standard IEC 61755-3-2:2006 + corrigendum January 2009 was approved by CENELEC as a European Standard with agreed common modifications. BS EN 61755-3-2:2009Li
18、censed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 7 FIBRE OPTIC CONNECTOR OPTICAL INTERFACES Part 3-2: Optical interface, 2,5 mm and 1,25 mm diameter cylindrical full zirconia ferrules for 8 degrees angled-PC single mode fibres 1 Scope This part of IEC
19、 61755 defines certain dimensional limits of a 2,5 mm and a 1,25mm diameter cylindrical zirconia (ZrO2) 8 degrees angled-PC (APC) ferrule optical interface to meet specific requirements for connecting fibre to fibre interconnection. Ferrules made from the material specified in this document are suit
20、able for use in categories C, U, E and O as defined in IEC 61753-1. 2 Description The performance of an angled-PC polished cylindrical 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 cond
21、itions affecting the alignment of two optical datum targets: lateral offset, angular offset and longitudinal offset. Parameters influencing the lateral and angular offset of the optical fibre axes include the following: ferrule outside diameter; fibre hole concentricity relative to the ferrule outsi
22、de diameter; fibre hole angle relative to outside diameter axis; fibre cladding diameter relative to fibre hole clearance; alignment sleeve inside diameter; fibre core concentricity relative to the cladding diameter; fibre core orientation relative to keying; ferrule grasping force of the alignment
23、sleeve; the amount of angled PC polishing after tuning of the connector at PC condition. Parameters influencing the axial alignment of the optical fibre axes include the following: end-face spherical radius; end-face spherical radius apex offset of ferrule or angle relative to angle-PC reference pla
24、ne; fibre undercut; ferrule rotational clearance relative to the keying; axial force on ferrule end-face; ferrule and fibre material physical constants; alignment sleeve frictional force; keying accuracy. BS EN 61755-3-2:2009EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/
25、07/2010 02:16, Uncontrolled Copy, (c) BSI 9 3 Interface parameters The optical interface dimensions are shown in Figure 1, the ferrule dimensions in Figure 3, while Figure 2 underlines fibre core location. The parameter values are detailed in Tables 1, 2 and 3. I E C B A Fibre axisFerrule axis Angle
26、d-PC reference plane IEC 1319/06 Figure 1 Interface dimensions BS EN 61755-3-2:2009EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 11 Key Key F F H G IEC 1315/06 IEC 1314/06 a) Grades B and C b) Grade D F, G and H define the radial
27、 and angular polar coordinate limits of the optical fibre core relative to the optical datum of the ferrule. Figure 2 Fibre core location BS EN 61755-3-2:2009EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 13 Table 1 Optical interf
28、ace parameter values for 2,5 mm diameter ferrule Parameter values Grade A Grade B Grade C Grade D Ref. Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Remarks A b-100 a-100 a-100 anm B 5 12 5 12 5 12 Radius, mm C 0 50 0 50 0 50 m D 2,4985 2,4995 2,4985 2,4995 2,4985 2,4995 Diameter,
29、mm E 0 0,2 0 0,3 0 0,6 Degrees F 0 0,0010 0 0,0014 0 0,0015 Radius, mm G 0 0,0003 0 0,0003 N/A N/A Radius, mm H 0 50 0 50 N/A N/A Degrees I 8 8 8 DegreesNOTE 1 The core location and tilt angle values specified in this document have been calculated to ensure that the attenuation values specified in 6
30、1755-2-2 are met under all circumstances. NOTE 2 Dome offset is measured in both extreme positions of the ferrule when the ferrule is rotated in the connector.aContact force 4,9 N minimum. Ferrule material: 3mol% yttria stabilised zirconia, ZrO2. Nominal material physical constant values: Youngs Mod
31、ulus, E = 200 20 GPa, Poissons Ratio, = 0,30 - 0,31. AMaximum1988 B0.795() B 106 B2106 C2()103+ 60bA negative value indicates fibre protrusion. BS EN 61755-3-2:2009 EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 15 Table 2 Optical
32、 interface parameter values for 1,25 mm diameter ferrule Parameter values Grade A Grade B Grade C Grade D Ref. Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Remarks Ab-100 a-100 a-100 anm B 5 12 5 12 5 12 Radius, mm C 0 50 0 50 0 50 m D 1,2485 1,2495 1,2485 1,2495 1,2485 1,2495 Dia
33、meter, mm E 0 0,2 0 0,3 0 0,6 Degrees F 0 0,0010 0 0,0014 0 0,0015 Radius, mm G 0 0,0003 0 0,0003 N/A N/A Radius, mm H 0 50 0 50 N/A N/A Degrees I 8 8 8 DegreesNOTE 1 Contact force 2,9 N minimum. Ferrule material: 3mol% yttria stabilised zirconia, ZrO2. Nominal material physical constant values: You
34、ngs Modulus, E = 200 20 GPa, Poissons Ratio, = 0,30 - 0,31. AMaximum1798 B0.795() B 106 B2106 C2()103+ 60NOTE 2 Dome offset is measured in both extreme positions of the ferrule when the ferrule is rotated in the connector. aThe core location and tilt angle values specified in this document have been
35、 calculated to ensure that the attenuation values specified in 61755-2-2 are met under all circumstances. bA negative value indicates fibre protrusion. BS EN 61755-3-2:2009 EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 17 J K No
36、sharp edge IEC 1320/06 NOTE Typically two types, stepped and conical, are possible foe APC ferrule tip shape. This figure illustrates the conical type. Figure 3 Ferrule dimensions Table 3 Optical interface parameter values for APC ferrules Ref. 2,5 mm diameter ferrule parameter values 1,25 mm diamet
37、er ferrule parameter values Notes Minimum Maximum Minimum Maximum J 0,8 1,7 0,6 0,85 Diameter, mmK N/A 1,8 N/A 1,0 mmN/A = Not applicable BS EN 61755-3-2:2009EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 19 Annex A (informative)
38、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 1. 1where AMaximumis the maximum spherical undercut for physical contact (nm) k1is the coefficient based on ferrule cont
39、act 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 differential thermal expansion between the ferrule material and the silica fibre at maximum operating
40、 temperature (nm) DPFWis the permanent fibre withdrawal that exceeds the transient fibre movement predicted by the first three terms in 1 (nm) End face deformation term as a function of contact force, end face radius and material properties. 2 Geometric compensation term for the offset of the ferrul
41、e apex from the fibre axis. 3 k1Bk2B106 B2106 C2()103+A Maximum k 1 B k 2 B106 B2106 C2( )103+ DDTE DPFw BS EN 61755-3-2:2009EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSI 21 BS EN 61755-3-2:2009010203040506070 5 1015 20 25 30 100
42、0100200300400500Allowable undercut(nm)Apex offset (m)Radius (mm)IEC 2332/08 A maximum 1 988 B 0 795,( ) B 106 B2106 C2( )103 + 60 = Figure A.1 Allowable undercut as a function of end face radius and apex offset 4,9 N minimum contact force 010203040506070510 15 20 25 30 1000100200300400500 Allowable
43、undercut(nm)Apex offset (m)Radius (mm) IEC 2333/08 A maximum 1 798 B 0 795, B 106 B2106 C2( ) 103 + 60 = Figure A.2 Allowable undercut as a function of end face radius and apex offset 2,9 N minimum contact force EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16
44、, Uncontrolled Copy, (c) BSI 23 Bibliography IEC 61753-1, Fibre optic interconnecting devices and passive components Part 1: General and guidance for performance standards 1IEC 61755-2-2, Fibre optic connector optical interfaces Part 2-2: Optical interface standard single mode non-angled physically
45、contacting fibres _ 1 To be published. BS EN 61755-3-2:2009_ NOTE Harmonized as EN 61753-1:2007 (not modified). NOTE Harmonized as EN 61755-2-2:2006 (not modified). EN 61755-3-2:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSIThis page deliberat
46、ely left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSIThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/07/2010 02:16, Uncontrolled Copy, (c) BSIBSI is the independent national body responsible for pr
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