Romeira, B., Javaloyes, J., Ironside, C. N., Figueiredo, J. M.L., 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. (doi: 10.1364/OE.21.020931)
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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.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Ironside, Professor Charles and Javaloyes, Dr Julien |
| Authors: | Romeira, B., Javaloyes, J., Ironside, C. N., Figueiredo, J. M.L., Balle, S., and Piro, O. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Optics Express |
| Publisher: | Optical Society of America |
| ISSN: | 1094-4087 |
| ISSN (Online): | 1094-4087 |
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