Title :
Huge birefringence in oxidized GaAs/AlAs optical waveguides for phase-matched nonlinear frequency conversion
Author :
Fiore, A. ; Rosencher, E. ; Berger, V. ; Laurent, N. ; Vodjdani, N. ; Nagle, J.
Author_Institution :
Lab. Central de Recherches, Thomson-CSF, Orsay, France
Abstract :
Summary form only given. We propose use of a low index oxide to enhance birefringence in a GaAs/AlAs waveguide and obtain phase matching between TE and TM modes. As a first demonstration of the huge birefringence obtainable in these structures, we have realized a single polarization waveguide, where the TM mode is well below cutoff at 1.06 /spl mu/m wavelength because of a thin AlAs layer converted into oxide.
Keywords :
III-V semiconductors; aluminium compounds; birefringence; gallium arsenide; optical frequency conversion; optical waveguides; oxidation; 1.06 micron; GaAs-AlAs; GaAs/AlAs optical waveguide; TE mode; TM mode; birefringence; low index oxide; nonlinear frequency conversion; phase matching; single polarization waveguide; Absorption; Birefringence; Frequency conversion; Gallium arsenide; Nonlinear optics; Optical frequency conversion; Optical waveguides; Oxidation; Polarization; Tellurium;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-444-0
