Title :
Quasi-phase-matching in an asymmetric quantum well waveguide using ion implantation induced intermixing
Author :
Bouchard, J.-P. ; Tetu, M. ; Janz, Siegfried ; Xu, Dan-Xia ; Wasilewski, Zbigniew R. ; Akano, U.G. ; Mitchell, I.V. ; Piva, P.G.
Author_Institution :
Centre d´Opt. Photonique et Laser, Laval Univ., Que., Canada
Abstract :
Summary form only given.The emerging use of wavelength routing in wavelength-division-multiplexed (WDM) optical communication networks brings the need for wavelength conversion. Difference frequency generation (DFG) has a number of advantages over other techniques that have been proposed, such as strict transparency, and little deterioration of the signal-to-noise ratio. However, it is necessary to use quasi-phase-matching (QPM) in a waveguide geometry to obtain conversion efficiencies sufficient for WDM applications. Second-harmonic generation (SHG) and DFG have similar susceptibilities when the signal and difference frequencies are almost equal, as is the case for WDM applications, hence a demonstration of SHG is relevant to WDM wavelength conversion. This paper presents what is, to our knowledge, the first demonstration of quasi-phase-matched second-harmonic generation (SHG) using periodic modulation of /spl chi//sub zzz//sup (2)/ induced by AlGaAs quantum well intermixing.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; ion implantation; nonlinear optical susceptibility; optical harmonic generation; optical phase matching; optical wavelength conversion; semiconductor quantum wells; wavelength division multiplexing; AlGaAs; AlGaAs quantum well intermixing; WDM; WDM wavelength conversion; asymmetric quantum well waveguide; difference frequencies; difference frequency generation; ion implantation induced intermixing; nonlinear optical susceptibilities; optical communication networks; optical wavelength conversion; periodic modulation; quasi-phase-matched SHG; quasi-phase-matched second-harmonic generation; quasi-phase-matching; signal-to-noise ratio; strict transparency; waveguide geometry; wavelength-division-multiplexed; Frequency; Geometrical optics; Optical fiber communication; Optical waveguides; Optical wavelength conversion; Signal generators; Signal to noise ratio; WDM networks; Wavelength division multiplexing; Wavelength routing;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.906739