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    Excitability and optical pulse generation in semiconductor lasers driven by resonant tunneling diode photo-detectors

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    Authors
    Romeira, B.
    Javaloyes, J.
    Ironside, Charlie
    Figueiredo, J.
    Balle, S.
    Piro, O.
    Date
    2013
    Type
    Journal Article
    
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    Citation
    Romeira, B. and Javaloyes, J. and Ironside, C. and Figueiredo, J. and Balle, S. and Piro, O. 2013. Excitability and optical pulse generation in semiconductor lasers driven by resonant tunneling diode photo-detectors. Optics Express. 21 (18): pp. 20931-20940.
    Source Title
    Optics Express
    DOI
    10.1364/OE.21.020931
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/38452
    Collection
    • Curtin Research Publications
    Abstract

    We demonstrate, experimentally and theoretically, excitable nanosecond optical pulses in optoelectronic integrated circuits operating at telecommunication wavelengths (1550 nm) comprising a nanoscale double barrier quantum well resonant tunneling diode (RTD) photo-detector driving a laser diode (LD). When perturbed either electrically or optically by an input signal above a certain threshold, the optoelectronic circuit generates short electrical and optical excitable pulses mimicking the spiking behavior of biological neurons. Interestingly, the asymmetric nonlinear characteristic of the RTD-LD allows for two different regimes where one obtain either single pulses or a burst of multiple pulses. The high-speed excitable response capabilities are promising for neurally inspired information applications in photonics. © 2013 Optical Society of America.

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