Optical neuron using polarisation switching in a 1550nm-VCSEL

Antonio Hurtado, Ian D. Henning, Michael J. Adams

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

We report a new approach to mimic basic functionalities of a neuron using a 1550 nm Vertical Cavity Surface Emitting Laser (VCSEL) which is based on the polarisation switching (PS) that can be induced in these devices when subject to polarised optical injection. Positive and negative all-optical threshold operations are demonstrated experimentally using external optical injection into the two orthogonal polarizations of the fundamental transverse mode. The polarisation of the light emitted by the device is used to determine the state of the VCSEL-Neuron, active (orthogonal) or inactive (parallel). This approach forms a new way to reproduce optically the response of a neuron to an excitatory and an inhibitory stimulus.

Original languageEnglish
Pages (from-to)25170-25176
Number of pages7
JournalOptics Express
Volume18
Issue number24
DOIs
Publication statusPublished - 22 Nov 2010

Keywords

  • optical neuron
  • polarization
  • vertical cavity surface emitting laser

Cite this