John Duffy

Parallel operation and crosstalk measurements in GaAs étalon optical logic devices

CO-AUTHORS J. L. Jewell, Y. H. Lee, A. C. Gossard, and W. Wiegmann
PUBLISHER
Applied Physics Letters
DATE
1986-05-19
 

Abstract

We report the first parallel operation of GaAs optical logic elements and bistable devices. Arrays up to 2×4 in size were operated using a picosecond pump and probe technique, while in the bistable mode we achieved uniform response in two spots. Crosstalk due to carrier diffusion became noticeable at separations of typically ∼20–30 μm in the bistable devices. Pulsed operation at 82 MHz allowed separations down to ∼10 μm limited only by diffraction. Efficient heat sinking in the pulsed array resulted in negligible heating even when continually operated for many minutes. All experiments were performed at room temperature.

Citation

John F. Duffy et al., Parallel operation and crosstalk measurements in GaAs étalon optical logic devices, 48 Applied Physics Letters 1342-1344 (1986).