Multielectrode quantum well laser for digital switching

Abstract
A multielectrode laser can be used to perform digital logic functions and threshold detection. In addition, the intrinsic gain in these devices allows control of lasing light output without using conventional high‐current electrical switches. Device potential is illustrated by demonstrating logical and operation (demultiplexing) at 1.5 Gbit s1 with a bit error rate of −11 s1.