AlGaAs/GaAs optically controlled wave-plate modulator

Autor: Sahara, Richard T., Steier, W. H., Hummel, S. G., Dapkus, P. D.
Zdroj: Optics Letters; December 1991, Vol. 16 Issue: 24 p1958-1960, 3p
Abstrakt: We demonstrate an AlGaAs/GaAs multiple-quantum-well optically controlled electro-optic wave-plate modulator that uses integrated optics. For operation as an optically controlled switch, output amplitude contrast ratios of greater than 300:1 are typically obtained with signal beam throughputs of 34% and an extrapolated switching speed of 1.5 ns. For applications as an optically controlled wave plate, we have measured the linear, r_41, and quadratic, R_11–R_12, electro-optic coefficients of the waveguide at the signal wavelengths and the device photo-generated current sensitivity at the control beam wavelength.
Databáze: Supplemental Index