Optical neuron using polarisation switching in a 1550nm-VCSEL

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

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


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
Issue number24
Publication statusPublished - 22 Nov 2010


  • optical neuron
  • polarization
  • vertical cavity surface emitting laser


Dive into the research topics of 'Optical neuron using polarisation switching in a 1550nm-VCSEL'. Together they form a unique fingerprint.

Cite this