Title :
Power-speed product of an optical flip-flop memory with optical feedback
Author :
Nakajima, Kazutoshi ; Kan, Hirofumi ; Mizushima, Yoshihiko
Author_Institution :
Hamamatsu Photonics, Japan
fDate :
1/1/1991 12:00:00 AM
Abstract :
Evaluation of optical logic gate devices in terms of a power-speed (switching time) product is discussed. An example is given for a simply fabricated optoelectronic flip-flop circuit utilizing an optical feedback. The minimum power-speed products for set and reset operations are 5 and 35 pJ, respectively. They are very small compared with previously reported optical nonlinear or bistable devices. The figure of merit is decreased by monolithic integration, by which an optical computation can be realized
Keywords :
flip-flops; monolithic integrated circuits; optical logic; optical storage; figure of merit; monolithic integration; optical computation; optical feedback; optical flip-flop memory; optical logic gate devices; optoelectronic flip-flop circuit; Feedback circuits; Flip-flops; Logic devices; Logic gates; Nonlinear optical devices; Nonlinear optics; Optical bistability; Optical computing; Optical devices; Optical feedback;
Journal_Title :
Solid-State Circuits, IEEE Journal of
