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Proceedings Paper

Boolean logic device done with DFB laser diode
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Paper Abstract

We present simulation results on how power output-input characteristic bistability in Distributed FeedBack -DFB semiconductor laser diode SLA can be employed to implemented Boolean logic device. Two configurations of DFB Laser diode under external optical injection, either in the transmission or in the reflective mode of operation, is used to implement different Optical Logic Cells (OLCs), called the Q- and the P-Device OLCs. The external optical injection correspond to two inputs data plus a cw control signal that allows to choose the Boolean logic function to be implement. DFB laser diode parameters are choosing to obtain an output-input characteristic with the values desired. The desired values are mainly the on-off contrast and switching power, conforming shape of hysteretic cycle. Two DFB lasers in cascade, one working in transmission operation and the other one in reflective operation, allows designing an input-output characteristic based on the same respond of a self-electrooptic effect device is obtained. Input power for a bit "1" is 35 μW(70μW) and a bit "0" is zero for all the Boolean function to be execute. Device control signal range to choose the logic function is 0-140 μW (280 μW). Q-device (P-device)

Paper Details

Date Published: 20 December 2004
PDF: 8 pages
Proc. SPIE 5577, Photonics North 2004: Optical Components and Devices, (20 December 2004); doi: 10.1117/12.567343
Show Author Affiliations
Antonio Hurtado, Univ. Politecnica de Madrid (Spain)
Ana P. Gonzalez-Marcos, Univ. Politecnica de Madrid (Spain)
Jose Antonio Martin-Pereda, Univ. Politecnica de Madrid (Spain)


Published in SPIE Proceedings Vol. 5577:
Photonics North 2004: Optical Components and Devices
John C. Armitage; Simon Fafard; Roger A. Lessard; George A. Lampropoulos, Editor(s)

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