研究目的
Investigating the implementation of photonic spike timing dependent plasticity (STDP) using a vertical-cavity semiconductor optical amplifier (VCSOA) subject to dual optical pulse injections, with a focus on low power consumption and wavelength-dependent properties.
研究成果
The proposed photonic STDP implementation using a VCSOA offers advantages such as lower power consumption and the ability to achieve wavelength-dependent STDP. The computational model provides a valuable tool for simulating large-scale photonic spiking neural networks and designing low-power photonic neuromorphic systems.
研究不足
The study is based on numerical simulations, and experimental validation is required to confirm the findings. The effects of initial wavelength detuning and bias current on STDP curves are complex and may require further investigation.
1：Experimental Design and Method Selection:
The study employs a computational model based on the Fabry–Pérot approach to simulate the photonic STDP properties of a VCSOA under dual optical pulse injections.
2：Sample Selection and Data Sources:
The VCSOA is subjected to two optical pulse injection beams, with parameters such as bias current, input powers, and initial wavelength detuning varied to analyze their effects on STDP.
3：List of Experimental Equipment and Materials:
The setup includes a VCSOA, optical pulse injection beams, a variable optical delay line (VODL), optical coupler, optical circulator, and bandpass filters.
4：Experimental Procedures and Operational Workflow:
The arrival times of the two optical pulses are varied to study the STDP properties, with outputs recorded at different relative time delays.
5：Data Analysis Methods:
The outputs are analyzed to determine the STDP curves, with the effects of various parameters on the STDP properties examined.
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