Optical bistability and switching in nonresonant GaAs:Cr self-electrooptic effect devices.
Using the thermal self-electrooptic effect, optical testability is observed in a hybrid etalon of semi-insulating GaAs:Cr material at the nonresonant wavelength of 1.06 microm. The nonlinearity is traced back to a temperature-dependent index of refraction, largely enhanced by the optoelectromeally induced electrical power arising from phutocurreut flow. The optical absorption is attributed to bandtailing effects due to the trapping centers. Optoelectronic AND gate operation between optical and electrical input signals is achieved.
D
D
Jager
W
W
Niessen
F
F
Forsmann
H
H
Thienpont
R
R
Geen