Optical bleaching in an epitaxial (Al,Ga)As Fabry–Perot resonator

Gourley, P. L.; Drummond, T. J.
November 1987
Applied Physics Letters;11/2/1987, Vol. 51 Issue 18, p1395
Academic Journal
We report studies of bleaching action in an epitaxial Fabry–Perot resonator grown by molecular beam epitaxy. These new structures hold exciting potential for surface-emitting lasers, optical switches, and optical modulators. The structure consisted of a multiple quantum well of AlGaAs and GaAs surrounded by two quarter-wave high reflectors with alternating layers of AlAs and AlGaAs. The spectral and temporal transmittances under intense optical pulses are reported here. The spectral data provide simultaneous information on nonlinear changes in both real and imaginary parts of the refractive index. The temporal data show that the transmittance can be switched up to three orders of magnitude in less than the experimental resolution of 300 ps, and provide evidence for time compression of optical pulses.


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