1、 IEC TR 62343-6-4 Edition 1.0 2017-01 TECHNICAL REPORT Dynamic modules Part 6-4:Design guides Reconfigurable optical add/drop multiplexer IEC T R 62343-6-4:2017-01(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC,Geneva,Switzerland All rights reserved.Unless otherwise speci
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10、us your feedback on this publication or need fur ther assistance,plea se contact the Customer Ser v ice Centre:csciec.ch.IEC TR 62343-6-4 Edition 1.0 2017-01 TECHNICAL REPORT Dy namic modules Part 6-4:Design guides Reconfigurable optical add/drop multiplexer INT ERNAT IONAL ELECT ROT ECHNICAL COMMIS
11、SION ICS 33.180.01,33.180.99 ISBN 978-2-8322-3879-0 Registered t rademark of the Internat ional Electrotechnica l Commission Warning!Mak e sure that you obtained this publication from an authorized distributor.colourinside 2 IEC TR 62343-6-4:2017 IEC 2017 CONTENTS FOREWORD.4 1 Scope.6 2 Normative re
12、ferences.6 3 Terms,definitions and abbreviated terms.6 3.1 Terms and definitions.6 3.2 Abbreviated terms.6 4 Reconfigurable optical add/drop multiplexer.7 4.1 Background.7 4.2 Optical network evolution.8 4.3 ROADM subsystem technologies evolution.11 4.3.1 General.11 4.3.2 Wavelength blocker based RO
13、ADMs.11 4.3.3 Integrated planar lightwave circuits(IPLC)based ROADMs.12 4.3.4 Wavelength selective switches.13 4.4 ROADM architecture.14 4.4.1 Broadcast and select architecture.14 4.4.2 Route and select architecture.16 4.4.3 Colourless,directionless and contentionless(CDC)functionality.17 5 WSS perf
14、ormance characteristics.22 Annex A(informative)ROADM(WSS)component technologies.23 A.1 General description.23 A.2 PLC technology.23 A.3 MEMS(micro-electromechanical system)technology.24 A.4 LCD(liquid crystal device)technology.25 A.5 LCOS(liquid crystal on silicon).25 A.6 DLP(digital light processor
15、)mirror arrays.26 A.7 Feature comparison of each switching engine technology.26 Bibliography.28 Figure 1 Reconfigurable optical network.7 Figure 2 Evolution of optical networks from point-to-point to reconfigurable WDM.9 Figure 3 Schematic of a ROADM node showing functions of wavelength pass-through
16、 add or drop,channel power equalization,and optical channel monitoring(OCM).10 Figure 4 Evolution of ROADM technologies.11 Figure 5 Wavelength blocker based ROADM architecture.12 Figure 6 2-degree ROADM node architecture with wavelength blocker,dynamic OAs and shared OCMs.12 Figure 7 PLC based ROADM architecture.13 Figure 8 ROADM architecture incorporating a WSS.14 Figure 9 Broadcast and select architecture of ROADMs.15 Figure 10 ROADM architectures.16 Figure 11 ROADM route and select architectu
