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PD IEC/TR 62343-6-4:2017 Dynamic modules - Design guides. Reconfigurable optical add/drop multiplexer, 2017
- 30310771-VOR.pdf [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 Reconfigurable optical add/drop multiplexer [Go to Page]
- 4.1 Background
- 4.2 Optical network evolution
- 4.3 ROADM subsystem technologies evolution [Go to Page]
- 4.3.1 General
- 4.3.2 Wavelength blocker based ROADMs
- 4.3.3 Integrated planar lightwave circuits (IPLC) based ROADMs
- 4.3.4 Wavelength selective switches
- 4.4 ROADM architecture [Go to Page]
- 4.4.1 Broadcast and select architecture
- 4.4.2 Route and select architecture
- 4.4.3 Colourless, directionless and contentionless (CDC) functionality
- 5 WSS performance characteristics
- Annex A (informative)ROADM (WSS) component technologies [Go to Page]
- A.1 General description
- A.2 PLC technology
- A.3 MEMS (micro-electromechanical system) technology
- A.4 LCD (liquid crystal device) technology
- A.5 LCOS (liquid crystal on silicon)
- A.6 DLP (digital light processor) mirror arrays
- A.7 Feature comparison of each switching engine technology
- Bibliography
- Figures [Go to Page]
- Figure 1 – Reconfigurable optical network
- Figure 2 – Evolution of optical networks from point-to-point to reconfigurable WDM
- Figure 3 – Schematic of a ROADM node showing functions of wavelength pass-through add or drop, channel power equalization, and optical channel monitoring (OCM)
- Figure 4 – Evolution of ROADM technologies
- Figure 5 – Wavelength blocker based ROADM architecture
- Figure 6 – 2-degree ROADM node architecture with wavelength blocker, dynamic OAs and shared OCMs
- Figure 7 – PLC based ROADM architecture
- Figure 8 – ROADM architecture incorporating a WSS
- Figure 9 – Broadcast and select architecture of ROADMs
- Figure 10 – ROADM architectures
- Figure 11 – ROADM route and select architectures
- Figure 12 – 8 x 8 WSS and large port count 1 x 24 WSS based colourless, directionless and contentionless ROADM architecture
- Figure 13 – Coloured and directional ROADM architecture including WSS, splitters, AWGs and transceivers (TRx)
- Figure 14 – Colourless, directionless and contentionless ROADM architecture
- Figure 15 – Technologies for contentionless architecture
- Figure A.1 – Example of PLC devices for ROADM systems
- Figure A.2 – Generic internal configuration of WSS (example, MEMS based)
- Figure A.3 – Switching engine of MEMS
- Figure A.4 – LC switching engine
- Figure A.5 – LCOS switching engine
- Figure A.6 – DLP switching engine
- Table 1 – List of key WSS parameters
- Table A.1 – WSS switch engine feature comparison [Go to Page]