Open AccessCompact highly-nonlinear AlGaAs waveguides for efficient wavelength conversion
Author(s) -
Ksenia Dolgaleva,
Wing Chau Ng,
Li Qian,
J. S. Aitchison
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.012440
Subject(s) - four wave mixing , optics , materials science , modulation (music) , wavelength , energy conversion efficiency , cross phase modulation , nonlinear optics , optoelectronics , wafer , phase modulation , self phase modulation , sum frequency generation , signal (programming language) , nonlinear system , mixing (physics) , phase (matter) , physics , laser , phase noise , quantum mechanics , computer science , acoustics , programming language
We report on the efficient nonlinear optical interactions in AlGaAs strip-loaded waveguides with a wafer composition specifically designed to increase the nonlinear coefficient. We demonstrate a broad-band self-phase modulation with a nonlinear phase shift up to 6π, and four-wave mixing with a 20-nm tuning range and signal-to-idler conversion efficiency up to 10 dB. Our samples are several times shorter than similar devices used for wavelength conversion by XPM and FWM in previous reports, but the efficiency of the observed effects is similar. Our experimental studies demonstrate the high potential of AlGaAs for all-optical networks.