TITLE

Symmetric self-electro-optic effect device: Optical set-reset latch

AUTHOR(S)
Lentine, A. L.; Hinton, H. S.; Miller, D. A. B.; Henry, J. E.; Cunningham, J. E.; Chirovsky, L. M. F.
PUB. DATE
April 1988
SOURCE
Applied Physics Letters;4/25/1988, Vol. 52 Issue 17, p1419
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate an integrated symmetric self-electro-optic effect device consisting of two quantum well p-i-n diodes electrically connected in series. The device acts as a bistable optical memory element with individual set (S) and reset (R) inputs and complementary outputs (optical S-R latch). The switching point is determined by the ratio of the two inputs, making the device insensitive to optical power supply fluctuations when both power beams are derived from the same source. The device also shows time-sequential gain, in that the state can be set using low-power beams and read out with subsequent high-power beams. The device showed bistability for voltages greater than 3 V, incident optical switching energy densities of ∼16 fJ/μm2, and was tested to a switching time of 40 ns.
ACCESSION #
9826609

 

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