Papers Presented at:

The Seventh European Fibre Optics Communicationsand Local Area Networks ExpositionJune 27-29,1990Park Hilton, Munich,Federal Republic of Germany

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Wednesday, 27 JunePlenary Session

Chairman: Alan Harmer, Harmer Associates, CH

Invited Plenary Papers

1. Optical Fibers, Fiber Cables and Technologies Concerned for Local Loops andLocal Area NetworksHiroshi Murata.The Furukawa Electric Co., Ltd., 2-6-1, Marunouchi, Chiyoda-ku,Tokyo 100, Japan 3-9

2. Recent Advances in Integrated Optics on SiliconCharles H. Henry, AT&T Bell Laboratories, Murray Hill, NJ 07974, USA 11-14

3. On LANs and MANs: An Evolution from Mbit/s to Gbit/sPitro Zafiropulo, IBM Research Division, Zurich Research Laboratory,8803 Riischlikon, Switzerland 15-22

4. From Telegraphy to the Intelligent NationDavid Firnberg, The Networking Centre Limited, Hemel Hempstead Hertsfordshire,England; Eosys Limited, Bourne End, Buckinghamshire, England 23-25

Fibre and Cable Technology

Thursday, 28 June

1.1. Fibre Measurements and Field Tests I

Chairman: B. Costa, CSELT, I

1.1.1 A Photon Counting Optical Time-Domain Reflectometer for distributed Sensing Applications

Mr. Ralph Kohler; Mr. B.K. Garside, LOT., Im Tiefen See 58, 6100 Darmstadt, Germany, Optoelectronics, Oakville,Ont., Canada 28-33

1.1.2 Application of the Backscatter-Measuring-Technique in Installation and Maintenance of Fibre-Optical NetworksGeorg Kapanke, ANT-Nachrichtentechnik GmbH, D-7150 Backnang, Federal Republic of Germany 34-37

1.1.3 Reference Device for a Multimode Type Optical ReflectometerJacques Isbert, CERT-DERO, Toulouse, France 38-40

1.1.4 High Resolution Strain and Loss Measurements in Optical CablesA.J. Barlow, N.J.Wickes, EG&G Fiber Optics, Wokingham, UK 41-44

Thursday, 28 June1.2 Fibre Measurements and Field Tests II

1.2.1 A Multiway Insertion and Return Loss SystemR. Johnson, M. Davies, M. Knott, K. Cooke, P. Longhurst, BICC Ltd., Warrington Cheshire, U.K 46-50

1.2.2 Field Measurments of the Chromatic Dispersion on Single-Mode Fibers of the Second GenerationJ. Vobian, G. Herchenroder, E. Unterseher, Research Institute of the DBP at the FTZ, D-6100 Darmstadt, Germany 51-56

1.2.3 Direct Chromatic Dispersion Measurement in Field EnvironmentsA.J. Barlow,T.G. Arnold, EG&G Fiber Optics, Wokingham, UK 57-60

Thursday, 28 June1.3 Fibres and Cables I

Chairman: G. Buga, Societa' Cavi Pirelli, I

1.3.1 Optical Rings for Broadband Access to Business Customers in the Telefonica's NetworkR. Diaz de la Iglesia, D. Lao Soriano, E. Lope Oter, Telefonica, Depto.: Tecnologia y NormativaTecnica,Beatriz de Bobadilla, 3. 28040-Madrid (Spain) 62-66

1.3.2 PCVD Hybrid Technology for Single Mode FibresH.J. Hagemann and P. Geittner, Philips Research Laboratories, D-5100 Aachen, West Germany 67-72

1.3.3 Efficient collapsing of Preforms by sophisticated Temperature ProfileN. Keim, Kabelmetal Electro GmbH, Stuttgart, D(Not available at time of printing 73

1.3.4 UP-Graded Rod-ln-Tube Process for MCVD PreformsFrederic SANDOZ, Frangois COCHET, Bernard Leuenberger, Cabloptic S.A., CH-2016 Cortaillod (Switzerland) 74-76

1.3.5 Measurements of Some Physical Characteristics of the Coating for Optical FibresP. Anelli1, D. Cuomo2, F. Esposto3,1. Ferri2, F. Nanni3, A. Zuccala2,1SCP - Societa' Cavi Pirelli - Milano (Italy),2 FOS - FibreOttiche Sud - Battipaglia (Italy),3 SIP - Direzione Generate - Roma (Italy) 77-80

Thursday, 28 June1.4 Fibres and Cables II

1.4.1 Armoured Telecommunication CablesDominique Vanthier, Du Pont de Nemours International S.A., Le Grand-Saconnex, Geneva, Switzerland 82-85

1.4.2 Designing Loose Tube Optical Cable for Increased Crush ResistanceL. Fischer, C. Huber and L. Rydskov, Brugg Cable Products Ltd, CH-5200 Brugg, Switzerland 86-91

1.4.3 Optical Fibre Strain Measurement During Cable LayingF. Caviglia1, F. Esposto2, F. Nanni2, P. Ricaldone1, D. Suino', ' CSELT, Torino, Italy; 2SIP-Direzione Generale, Roma, Italy . . 92-97

VIII

Optical Components

Wednesday, 27 June2.1 Integrated Optic Components I

Chairman: M. McCourt, Corning France, F

2.1.1 Low Cost Silica-On-Silicon Single Mode 1:16 Optical Power Splitter for 1550 nmR. Bellerby, B. Bhumbra, G.J. Cannell, S. Day, M. Grant, and M. Nelson, STCTechnology Ltd,London Road, Harlow, Essex, England 100-103

2.1.2 Wavelength Insensitive Germania Doped Silica integrated Optic Directional CouplerN. Nourshargh, S.R Shipley and B.A. Nichols, GEC Hirst Research Centre, Wembley, Middlesex, England 104-107

2.1.3 Fiber Pigtailed Wavelength Multiplexer/Demultiplexer at 1.55 micron integrated on Silicon SubstrateG. Grand, J.R Jadot, S. Valette, H. Denis, A. Fournier, A.M. Grouillet, LETI, C.E.A.-C.E.N.G., B.R 85X,38041 Grenoble Cedex, France 108-113

2.1.4 Low-Loss Single-Mode Wavelength Division Multiplexers fabricated by Ion Exchange in GlassC. Nissim, A. Beguin, P. Laborde, C. Lerminiaux, M. McCourt*, Corning Europe, 7 bis, Av. de Valvins, 77210 Avon, France'Corning France, 44, Av. de Valvins, 77210 Avon, France 114-116

2.1.5 Trench-Bulge Waveguides on Silicon SubstratesJ.P. Schmidt, D. Peters, K. Fischer, J. Muller.Technische Universitat Hamburg-Harburg, Hamburg, FRG 117-120

Wednesday, 27 June2.2 Integrated Optic Components II

2.2.1 Loss Measurements with Modefield Adjusted Waveguides in GlassU. Hollenbach, C. Efstathiou, N. Fabricius, I. Veigl, S.Weiss, lOTGmbH, 6833Waghausel 1, Germany,Baden-Wurttemberg . 122-126

2.2.2 Stress Effects in Proximity Couplers Made by Ion ExchangeCatherine Visconti, Carlos Nissim, Roger Rimet*, Corning Europe, 7 bis, Av. de Valvins, 77210 Avon, France*LEMO, ENSERG, 23, Av. des Martyrs, 38016 Grenoble, France 127-130

2.2.3 Realization of a Single Mode Glass Ion-Exchanged Mach-Zehnder InterferometerP. Benech, D. Persegol, F. Saint-Andre, Laboratoire d'Electromagnetisme de Microondes et d'Optoelectronique,ENSERG, BP 257, 38016 Grenoble cedex France 131-134

2.2.4 Single-Mode Glass Waveguides and Components by One-Step Dry Ion Exchange TechniqueS. Honkanen, P. Poyhonen, M. Tahkokorpi, A. Tervonen, S. Tammela*, Nokia Research Center, Espoo, Finland,'Semiconductor Lab., Technical Research Center, Espoo, Finland 135-137

2.2.5 IODE-Tools for Masks GenerationD. Mauduit, D. Leti/DMEL/SMSC-C.E.N/G, Grenoble, Isere, France 138-139

2.2.6 Multiple Quantum well Nonlinear Directional Coupler with SaturationJ.D. Begin and M. Cada, Department of Electrical Engineering, Technical University of Nova Scotia, P.O. Box 1000,Halifax, N.S., Canada B3J 2X4 140-143

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Thursday, 28 June2.3 Bulk Optics and Fused Fibre Components I

Chairman: O. Parriaux, CSEM, CH

2.3.1 A Comparison of Performance in All-Fibre Optical Frequency ShiftersA.R Foord, RA. Greenhalgh, P.A. Davies, Electronic Engineering Laboratories, The University of Kent, Canterbury, Kent,CT2 7NT, U.K 146-148

2.3.2 Optical Fiber Polarization Maintaining Fused Couplers Unfriendly Environments Resistant High ReproducibilityProcessE. Fiumara, A. Durante, G. Serra, G. Saffioti, ELSAG Elettronica San Giorgio S.p.A., Via Puccini 2, Genoa, Italy 149-153

2.3.3 Limits to the Bandwidth of Directional-Coupler Filters Made of Single-Mode Fibers with Different CladdingsOttokar Lemingerand Remigius Zengerle, Deutsche Bundespost Telekom, Forschungsinstitut, Darmstadt,F.R. of Germany 154-155

2.3.4 Results Obtained with 12 Multiplexers using Single Mode FibersJP Laude, F. Bos, D. Fessard, J. Flamand, Ph. Gacoin, J.C. Gautherin, D. Lepere, I. Long, ISA Jobin Yvon,16, rue du Canal, 91160 Longjumeau (France) 156-159

Thursday, 28 June2.4 Bulk Optics and Fused Fibre Components II

2.4.1 Optical Fibre Based Filter ComponentsS. Day, M. Geearand R. Brock, STC Technology Ltd and STC Components Ltd, Harlow, Essex, England 162-164

2.4.2 The Finger Splice - A Mechanical V-Groove Splicing Technique for Optical Fibers -Lothar Finzel (Dipl. Ing.), Siemens AG, Communication Cables, Munich, Federal Republic of Germany 165-168

2.4.3 Electrostatic activation of micromechanical resonatorsR.M.A. Fatah, N.A.D. Stokes, British Telecom Research Laboratories, Ipswich;University College, London, UK (Not available at time of printing) 169

Thursday, 28 June2.5 Optical Receivers

Chairman: will be announced in the showguide

2.5.1 Advanced Integrated Planar INP/INGAAS/INP: FE PIN-FET Photoreceiver with Inhomogenous Doped LayerStructureH. Albrecht, R. Penz, Ch. Lauterbach, L. Hoffmann, G. Ebbinghaus, T. Scherg and R. Strzoda, Siemens ResearchLaboratories, Otto-Hahn-Ring 6, D-8000 Munchen 83, Federal Republic of Germany 172-177

2.5.2 Modelling of Superlattice Avalanche Photodiodes for Optical ReceiversM.J. Burns, R.S. Fyath and J.J, O'Reilly, School of Electronic Engineering Science, University of Wales-Bangor GwyneddLL57 1UT, United Kingdom, Tel. +44248351151 178-181

2.5.3 2.4 Gbit/s Optical Receiver PreamplifierK. Lamacraft, S.J. Marsh and R.A. Minasian*, GEC Hirst Research Centre, Wembley, Middlesex, England,* University of Sydney, Dept. of Electrical Engineering, NSW 2006, Australia 182-185

2.5.4 Design of a 16 GHz Balanced Tuned Optical Receiver Front-EndFrank Ebskamp, Center for Broadband Telecommunications, Electromagnetics Institute Technical University of Denmark,Building 348, 2800 Lyngby, Denmark 186-190

2.5.5 Performance of Lightwave Systems Employing Optically Preamplified Receivers: Effect of Laser SpectrumR.S. Fyath and J.J. O'Reilly, School of Electronic Engineering Science, University of Wales-Bangor Gwynedd LL57 1UT,United Kingdom 191-196

Friday, 29 June

2.6 Sources, Optical Amplifiers, Isolators and Switches I

Chairman: W.J. Devlin, British Telecom Research Labs., UK

2.6.1 Gain-Switched Laser Diode Operation in Photonic Networks

P.A. Davies, N.J. Gomes and C. Walton, Electronic Engineering Laboratories, University of Kent,Canterbury, CT2 7NT, U.K 198-202

2.6.2 Electronically Tunable Long External Cavity LasersK. Doughty, D.E.L. Vaughan & I.L Seville, School of Electronic Engineering Science, University of Wales, Bangor,Gwynedd, LL57 1UT, United Kingdom 203-206

2.6.3 BPSK Systems Based on DFB Lasers Controlled by Electrical FeedbackJoao J.O. Pires* and Jose R. Ferreira da Rocha**, * Dep. of Electrical & Computer Engineering, Instituto SuperiorTecnico,1096 Lisboa, Portugal, "Dep. of Electronics and Telecommunications, University of Aveiro, 3800 Aveiro, Portugal 207-211

2.6.4 Receptacle and Fibre-Pigtailed Coaxial 1300 nm Laser Sources for Local Loop and LAN ApplicationsA.J.N. Houghton, B. Flintham, G. Jones, M.A. Shaw and M.C. Hales, STC Optical Devices, Paignton, Devon, U.K 212-217

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Friday, 29 June2.7 Sources, Amplifiers, Isolators and Switches II

2.7.1 Wideband Optical for Subscriber ApplicationsFlavio Fontana, Giorgio Grasso, Aldo Righetti, Societa' Cavi Pirelli S.p.A. - Milan, Italy 220-223

2.7.2 Duplexer Crosstalk Requirements for Bidirectional Optical Subscriber Loops Using Optoelectronic IntegratedCircuitsWeich K., Vathke J., Waif G., Heinrich-Hertz Institut fur Nachrichtentechnik, 1000 Berlin 10, Einsteinufer 37,Federal Republic of Germany 224-228

2.7.3 An Epoxy-Free Optical Isolator for Inclusion in the Source PackageK.J. Warbrick and M.C. Geear, STC Technology Ltd, Harlow, Essex, England 229-231

2.7.4 Extendable 8*8 GaAs Grosspoint Switch IC for 2,4 Gbit/sKurt Ringkobing, Lars Ronn, Center for Broadband Telecommunications Electromagnetics Institute, bldg. 348,Technical University of Denmark, DK-2800 Lyngby, Denmark, Tel.: +4542881444 - Fax: +4545931634 232-235

XII

Communication Systems

Wednesday, 27 June

3.1 Advanced Transmission Techniques

Chairman: M.R. Boirat, Alcatel-CIT, F

3.1.1 Broadband Analogue and Digital Electro-Optical Correlator for use in Spread Spectrum Systems

H.S.AI-Raweshidy & D. Uttamchandani, Department of Electronic & Electrical Engineering, University of Strathclyde,204 George Street, Glasgow G1 1XW, Scotland (U.K.) 238-243

3.1.2 All-Optical Coherent Correlation Processing for Optical Fibre Information SystemsD.D. Sampson and D.A. Jackson, Physics Laboratory, University of Kent, Canterbury, Kent. CT2 7NR, UK 244-249

3.1.3 Binary and Multilevel Polarisation Shift Keying for Digital Coherent Optical CommunicationsS. Benedetto, P. Poggiolini, Dipartimento di Elettronica, Politecnico*, Corso Duca degli Abruzzi 24 - 10129 Torino - Italy,Ph. +39-11-5567231 - Fax +39-11-5567299 250-255

3.1.4 Polarization Modulation in Multi-Wavelength Passive Optical NetworksGiancarlo De Marchis, Marco Listanti, Francesco Matera Fondazione Ugo Bordoni - Roma (Italy) 256-260

3.1.5 Chances and Limits of High Speed Transmission on Plastic Optical FibresW. Kaiser and K. Ruf, Institut fur Nachrichtenubertragung, University of Stuttgart, Germany 261-265

Wednesday, 27 June3.2 Optical Amplifiers and Transmission Systems

3.2.1 Optical Amplifiers in Fibre Optic Communication NetworksG. Grosskopf, R. Ludwig, R. Schnabel, N. Schunk, H.G. Weber, Heinrich-Hertz-lnstitut fur Nachrichtentechnik BerlinGmbH, Einsteinufer 37, D-1000 Berlin 10, FRG 268-273

3.2.2 Field Demonstration of Two Channel Coherent Transmission over 200 km of Installed Fibre with aDiode Pumped Fibre Amplifier RepeaterM.J. Creaner, R.C. Steele, G.R. Walker, N.G. Walker, D. Spirit, J. Mellis, W.B. Hale, I. Sturgess,M. Rutherford, D.Trivett, M. Brain, British Telecom, IPSWICH, Suffolk, England 274-278

3.2.3 High BIT Rate Fibre Optic Systems for the Synchronous Digital HierarchyPeter Bruckbock, Siemens AG, Munich, Germany 279-283

3.2.4 A new Optical Line Terminal E02L for 2.048 Mbits/s over 250 km Link Without RepeaterLecomte J. -ALCATEL C.L.T.O. /Thomas G. -ALCATEL SUBMARCOM, ALCATEL C.L.T.O. 35, rue Jean Jaures -Bezons, 95870, France, ALCATEL SUBMARCOM 30, rue des chasses, Clichy, 92110, France 284-286

3.2.5 Repeaterless Optical Submarine Links up to 200 km: Factory and Final Acceptance Test ResultsL. Lattanzi, P. Rosa, S. Cascelli, M. Guglielmucci, F. Balena*, Istituto Superiore P.T., Rome, Italy,*Azienda di Stato per i Servizi Telefonici, Rome, Italy 287-292

3.2.6 Optical Fibre Telecommunication with Fail-Safe Transmission for Railway UtilityRudolf Budinka, NKTA/S, NKT Elektronik Division, NKTAIIe 1, 2605 Brondby, Denmark 293-296

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Thursday, 28 June

3.3 Photonic Switching I

Chairman: D.W. Smith, British Telecom Research Labs, UK

3.3.1 Synchronous Optical Switching in a Time Multiplexed Network

IM Burnett, British Telecom Research Laboratories, Ipswich, Suffolk, UK, AC O'Donnell,GEC-Marconi Research, Chelmsford, Essex, UK 298-302

3.3.2 Switch Capacity Expansion Schemes on Photonic SwitchingMitsuhito Sakaguchi and Masahiko Fujiwara, Opto-Electronics Res. Labs., NEC Corporation, 1-1,Miyazaki 4-Chome, Miyamae-ku, Kawasaki 213, Japan, Telephone: 0448562050, Facsimile: 0448562221 303-308

3.3.3 Passive Access to a Very High Speed Optical Loop - The VHSOL ConceptT.M. Martinson, AscomTech Ltd., Bern, CH 309-313

3.3.4 Wavelength Switching and Processing Using an All-Optical Frequency SynthesiserP. Coppin.T.G. Hodgkinson, P. Healy, British Telecom Research Labs., Martlesham Heath, Ipswich,Suffolk, IP5 7RE, United Kingdom 314-319

Thursday, 28 June3.4 Photonic Switching II

3.4.1 Integrated optical switching in Ill/V compoundsM. Papuchon, Y. Bourbin, H. Demonts, R. Blondau, Thompson CSF, Orsay, F(Not available at time of printing) 322

3.4.2 Design and Characterisation of D-Fibre Optical SwitchesK. Doughty and W. Jones, School of Electronic Engineering Science, University of Wales, Bangor, Dean Street,Bangor, Gwynedd, LL57 1UT, U.K 323-326

3.4.3 Photonic Packet Switch Architecture for very High Capacity Broadband Switching NetworksChristian Saxtoft, M.Sc.EE, Center for Broadband Telecommunications, Electromagnetics InstituteTechnical University of Denmark, DK-2800 Lyngby, Denmark 327-331

XIV

Thursday, 28 June3.5 Optical Frequency Division Multiplexing I

Chairman: E.G. Bachus, Heinrich-Hertz-lnstitut, D

3.5.1 Video Distribution Systems Using Coherent Subcarrier Multiplexing TechniquesRichard Gross, GTE Laboratories Incorporated, 40 Sylvan Road, Waltham, MA 02254,Telephone: (617) 466-2727, Fax: (617) 890-9320 334-337

3.5.2 Advanced Optical for High BIT Rate WDM NetworksN. Nourshargh, G. Cannell1, J. Walters2, P. Le Roux3, J.P. Laude4 and J.T. Zubrzycki5,GEC Hirst Research Centre, Wembley, Middlesex, England,1 STC Technology Ltd, Harlow, Essex, England,2 STC Defence Systems, Paignton, Devon, England, 3Thomson-CSF LER, Cesson-Sevigne, France,4 Instruments SAJobin-Yvon, Longjumeau, France, 5BBC Research Department, Tadworth, Surrey, England 338-342

3.5.3 Components for HDWDW SystemsN. Baker, J. Brannan, Y. Kanabar and J.P. King, STC Technology Ltd., Harlow, Essex 343-346

3.5.4 Coherent OFDM Switching SystemsH.-M. Foisel, E.-J. Bachus, R.P. Braun, C. Caspar, B. Strebel, Heinrich-Hertz-lnstitut fur NachrichtentechnikBerlin GmbH, Einsteinufer 37, D-1000 Berlin 10, FRG 347-351

3.5.5 Optoelectronic Integration - the Key Technology for Optical Frequency Multiplex (OFDM) SystemsA.W. Davis, STC Technology Ltd, Harlow, Essex, UK 352-357

Thursday, 28 June3.6 Optical Frequency Division Multiplexing II

3.6.1 Direct Coupling all Fiber Multimirror Fabry-Perot Ring Resonators: Application as FDMA LAN DemultiplexersJose Capmany, Miguel. A. Muriel, Dto Tecnologia Fotonica, E.T.S.I. Telecommunicacion Ciudad Universitaria,28040, Madrid, Spain 360-364

3.6.2 Experimental Demonstration of Bidirectional WDM Transmission with LED Spectral SlicingD. Rund, L. Bersiner, Krone AG Berlin, Present Address: Universitat Paderborn,FGTheoretische Elektrotechnik, Pohlweg 47-49, D-4790 Paderborn, West Germany 365-368

3.6.3 Digital Optical Subscriber Access Networks Realized with Subcarrier ModulationB. Hein, DBP Telekom Research Institute, Darmstadt, D 369-373

3.6.4 The use of a Tunable DBR Laser in a Coherent Multi Channel ReceiverRRG. Mols, P.I. Kuindersma, RW. Hooijmans, Philips Research Laboratories P.O. Box 80.000,5600 JA Eindhoven, The Netherlands 374-379

XV

Friday, 29 June

3.7 Fibre-to-the Home I

Chairman: H. Bauch, Siemens AG, D

3.7.1 Digital TV Distribution in the Local Loop

D.W. Faulknerm, A.R.J. Cook, and RC. Bunting. British Telecommunications Research Laboratories,Martlesham Heath, Ipswich, IP5 7RE, England 382-386

3.7.2 Transmission of Narrowband Services on a passive Optical BusJ. Abiven France Telecom CNET Lannion (F) 387-391

3.7.3 A Fiber Optic System for the Subscriber Loop Using Passive Optical CouplersKarl Heinz Moermann, Siemens AG, Public Communication Networks Group, Central Laboratories8000 Munich 70, Federal Republic of Germany 392-397

3.7.4 Single Mode and Dual Mode Coupler Technology for Fiber-to-the-Home ApplicationsM. Corke, D. Campbell, D. Stowe, J. Flynn, Aster Corporation, Milford, USA;Aster Ireland Ltd., Limerick, IRL (Not available at time of printing) 398

Friday, 29 June3.8 Fibre-to-the Home II

3.8.1 Implementation of Large Scale Fibre-To-Home NetworksJ.P. Boinet, M. deVecchis, C.Vergez, Les Cables de Lyon, BP 309, 92111 Clichy Cedex France 400-405

3.8.2 The Multiserv Residential Subscriber Premises Network for Broadband ISDNRob van Engelshoven and Dirk De Schoenmacker, Alcatel Bell Telephone, Advanced Research Center,Antwerp, Belgium 406-411

3.8.3 Quality and Reliability Testing Issues in the Manufacture of Fiber Optics Systems for the Local LoopJames L. Spencer, T.S. Frank Lee, Bellcore-Transmission Quality and Reliability Division,331 Newman Springs Road, Red Bank, New Jersey 07701 -7040, United States of America,Telephone: 201-758-3122, Fax: 201-758-8017 412-417

3.8.4 High Speed Silicon Driver and Receiver Integrated Circuits for Optical Broadband LocalNetwork ApplicationsR.H. Lord, A.K. Joy, J.D. Green, M.R. Owen and G.M. Foster,Plessey Research Caswell Ltd, Caswell, Towcester, Northants, UK 418-422

XVI