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Investigation of vertical cavity surface emitting laser dynamics for neuromorphic photonic systems
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10.1063/1.3692726
/content/aip/journal/apl/100/10/10.1063/1.3692726
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/10/10.1063/1.3692726
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup. PPG, pulse pattern generator; VOA, variable optical attenuator; MZ, Mach Zehnder; RF, radio frequency; EDFA, erbium doped fibre amplifier; OSA, optical spectrum analyzer; PBS, polarization beam splitter.

Image of FIG. 2.
FIG. 2.

(Color online) Optical spectrum of the VCSEL with and without orthogonally polarized optical injection producing PS and injection locking.

Image of FIG. 3.
FIG. 3.

(Color online) VCSEL-neuron’s response to an external stimulus (4 ns long); the bias current and initial wavelength detuning are IBias  = 1.5Ith and Δλ  = 0 nm. (a) Phasic spiking and (b) rebound spike behaviours are obtained for the (a) orthogonal (in red) and (b) parallel (in blue) polarization outputs. The lowest plot (in black) shows the injected signal.

Image of FIG. 4.
FIG. 4.

(Color online) VCSEL-neuron’s response to an external stimulus (4 ns long); the bias current and initial wavelength detuning are IBias  = 2.5Ith and Δλ = −0.02 nm. (a) Tonic spiking and (b) sub-threshold oscillations appear for the (a) orthogonal (in red) and (b) parallel (in blue) polarization outputs. The lowest plot (in black) shows the injected signal.

Image of FIG. 5.
FIG. 5.

(Color online) VCSEL-neuron’s response to increasingly strong stimuli; the bias current and the initial wavelength detuning are IBias  = 2.5Ith and Δλ  = −0.02 nm, respectively. The time evolution and strength of the input stimuli is shown in the lower plot (in black).

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/content/aip/journal/apl/100/10/10.1063/1.3692726
2012-03-07
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigation of vertical cavity surface emitting laser dynamics for neuromorphic photonic systems
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/10/10.1063/1.3692726
10.1063/1.3692726
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