Title :
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
fDate :
3/1/2003 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.807898
