Preliminary Reliability Evaluations of GaAs/AlGaAs Electro-Optic Directional Coupler Switches

Reported here are the first preliminary reliability evaluation of GaAs/AlGaAs electro-optic directional coupler (EODC) switches. During a 1570-hour test period, significant DC drift phenomena was not observed. During a separate 2800-hour test period, the EODCs maintained normal I-V characteristics.