Abstract

A simple pump-and-probe technique for using a dispersively nonlinear Fabry-Perot etalon as NOR, NAND, XOR. OR and AND gates has been previously described and demonstrated using dye-filled etalons.¹ We have now performed these five logic functions in a room-temperature GaAs-AlGaAs multiple-quantum-well (MQW) etalon at 82 MHz with input energies less than 3 pJ incident on the device achieving contrasts better than 5:1. Thermal stability with respect to input data was demonstrated in the NOR rate despite poor heatsinking. A similar Fabry-Perot MQW device has shown 1-ps response time.²

© 1985 Optical Society of America