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Spie Press Book

Arrayed Waveguide Gratings
Author(s): Dana Seyringer
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Book Description

This Spotlight provides an overview of the life cycle of arrayed waveguide gratings (AWGs), from design and simulation to evaluation and technological verification. The book describes the AWG design procedure by applying a new software tool. It discusses the appropriateness of different commercially available photonics tools, and their advantages and disadvantages. To solve the problems posed by evaluation, 19 transmission parameters are defined. The book demonstrates that there is very good agreement between designed and simulated/measured transmission parameters. Finally, the book describes AWG designs with excellent optical demultiplexing properties.

Book Details

Date Published: 3 June 2016
Pages: 74
ISBN: 9781510603608
Volume: SL16

Table of Contents
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1 Introduction

2 Wavelength Division Multiplexing
2.1 WDM system
2.2 Different WDM systems
2.3 Flex-grid ITU standards
2.4 Multiplexing/demultiplexing approaches

3 Arrayed Waveguide Gratings
3.1 Principle
3.2 Different AWG types
3.3 Design
     3.3.1 Focusing
     3.3.2 Dispersion
     3.3.3 Free spectral range
     3.3.4 Performance parameters
     3.3.5 Insertion loss
     3.3.6 Non-uniformity
     3.3.7 Channel crosstalk
     3.3.8 Design parameters
     3.3.9 Input parameters for AWG design
     3.3.10 AWG-Parameters tool
     3.3.11 Design optimization
3.4 Simulation of AWG layout
3.5 Evaluation of simulated AWG transmission characteristics
     3.5.1 Definitions of AWG transmission parameters
     3.5.2 AWG-Analyzer tool
          3.5.2.1 "AWG transmission parameters" view
          3.5.2.2 "All transmission parameters" view
3.6 Technological verification of AWG design
     3.6.1 Fabrication
     3.6.2 Measurement
     3.6.3 Evaluation of measured transmission characteristics
3.7 Thermal control
3.8 Packaging and product promotion
3.9 Different photonics tools
3.10 Tapers in AWG design
3.11 Influence of fabrication imperfections on AWG performance
     3.11.1 Different foundries
     3.11.2 Different AWG performances from the same foundry
     3.11.3 40-channel, 100-GHz AWG
3.12 Application of AWG tools in various AWG designs
     3.12.1 8-channel CWDM AWG
     3.12.2 Design
     3.12.3 Colorless 8-channel, 100-GHz AWG
          3.12.3.1 Layout and simulation
     3.12.4 128-channel, 10-GHz AWG for ultra-DWDM
3.13 Design optimization
     3.13.1 Improvement of channel crosstalk in narrow-channel-spacing AWGs by applying specially shaped couplers
     3.13.2 Simulation of a standard AWG
     3.13.3 Simulation of an optimized AWG
     3.13.4 Design of specially shaped couplers

References

Preface

This Spotlight provides an overview of the life cycle of arrayed waveguide gratings (AWGs), from design and simulation to evaluation and technological verification. The book describes the AWG design procedure by applying a new software tool. It discusses the appropriateness of different commercially available photonics tools, and their advantages and disadvantages. To solve the problems posed by evaluation, 19 transmission parameters are defined. The book demonstrates that there is very good agreement between designed and simulated/measured transmission parameters. Finally, the book describes AWG designs with excellent optical demultiplexing properties.

Dana Seyringer
May 2016


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