Improved design of a 64×64 arrayed waveguide grating based on silicon-on-insulator substrate

Author

Lin, Y.-H. ; Tsao, S.-L.

Author_Institution

Inst. of Electro-Opt. Sci. & Technol., Nat. Taiwan Normal Univ., Taipei, Taiwan

Volume

153

Issue

2

fYear

2006

fDate

4/10/2006 12:00:00 AM

Firstpage

57

Lastpage

62

Abstract

The arrayed waveguide grating (AWG) multiplexer is a key component in wavelength division multiplexing fibre-optic communication systems. In this paper, an integrated optical 64×64 AWG with 0.4 nm (50 GHz) channel spacing at 1.55 μm based on silicon-on-insulator substrate is designed and analysed. An optimal value of waveguide separation at the junction between the arrayed waveguides region and the free propagation region is obtained. To get a better uniformity for 64 channel output while insertion loss and crosstalk are taken into account, an improved design is described using a tapered waveguide structure at each end of the AWG.

Keywords

arrayed waveguide gratings; channel spacing; integrated optics; multiplexing equipment; optical communication equipment; optical crosstalk; optical design techniques; optical fibre communication; optical losses; silicon-on-insulator; wavelength division multiplexing; 1.55 mum; 3200 GHz; 50 GHz; 64 × 64 AWG; AWG design; AWG multiplexer; Si; arrayed waveguide grating; channel spacing; crosstalk; fibre-optic communication systems; free propagation region; insertion loss; integrated optical AWG; silicon-on-insulator substrate; tapered waveguide structure; waveguide separation; wavelength division multiplexing;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:20050027

Filename

1593509