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Optics Letters

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  • Vol. 15, Iss. 13 — Jul. 1, 1990
  • pp: 749–751

Optical flip-flop based on parallel-connected AlGaAs/GaAs pnpn structures

K. Hara, K. Kojima, K. Mitsunaga, and K. Kyuma  »View Author Affiliations


Optics Letters, Vol. 15, Issue 13, pp. 749-751 (1990)
http://dx.doi.org/10.1364/OL.15.000749


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Abstract

An optical flip-flop using parallel-connected pnpn (thyristor) structures is demonstrated for the first time to our knowledge. We utilize the differential optical switching technique for inverting the state of the flip-flop and the slow dissipation of carriers stored in the gate layers of pnpn structures for retaining the state. The flip-flop operation with 7.2 pJ of optical input energy was attained by using an AlGaAs/GaAs device. The expansibility to monolithic two-dimensional arrays, the high on–off contrast, and the high optical gain of the flip-flop are useful in the design and fabrication of optical parallel processing systems.

© 1990 Optical Society of America

History
Original Manuscript: November 28, 1989
Manuscript Accepted: April 5, 1990
Published: July 1, 1990

Citation
K. Hara, K. Kojima, K. Mitsunaga, and K. Kyuma, "Optical flip-flop based on parallel-connected AlGaAs/GaAs pnpn structures," Opt. Lett. 15, 749-751 (1990)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-15-13-749


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