Generation of ultrashort electrical pulses in semiconductor waveguides

Author

Loyo-Maldonado, V. ; Lee, H.K. ; Stanley, C.R. ; Rao, S. Venugopal ; Moutzouris, K. ; Ebrahimzadeh, M. ; Aitchison, J.S.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Glasgow, UK

Volume

15

Issue

3

fYear

2003

fDate

3/1/2003 12:00:00 AM

Firstpage

428

Lastpage

430

Abstract

We report a novel device capable of generating ultrashort electrical pulses on a coplanar waveguide (CPW) by means of optical rectification. The device consists of a completely passive GaAs-based optical waveguide, which is velocity matched to a CPW line. Optical pulses are injected into the device and electrical pulses are collected at the output. Experimental results obtained in the laboratory show the potential of this device for high speed optical-to-electrical conversion.

Keywords

III-V semiconductors; aluminium compounds; coplanar waveguides; gallium arsenide; microwave photonics; nonlinear optics; optical planar waveguides; pulse generators; rectification; AlGaAs; CPW line; GaAs; completely passive GaAs-based optical waveguide; coplanar waveguide; electrical coplanar waveguide; high speed optical-to-electrical conversion; optical pulses; optical rectification; optical ridge waveguide; second-order nonlinear tensor; semiconductor waveguides; ultrashort electrical pulse generation; Coplanar waveguides; High speed optical techniques; Laboratories; Nonlinear optics; Optical devices; Optical pulse generation; Optical pulses; Optical waveguides; Pulse generation; Semiconductor waveguides;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.807898

Filename

1182780