PMID- 38178460
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240105
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 31
IP  - 26
DP  - 2023 Dec 18
TI  - Neuromorphic convolution with a spiking DFB-SA laser neuron based on rate coding.
PG  - 43698-43711
LID - 10.1364/OE.499085 [doi]
AB  - We propose a neuromorphic convolution system using a photonic integrated 
      distributed feedback laser with a saturable absorber (DFB-SA) as a photonic 
      spiking neuron. The experiments reveal that the DFB-SA laser can encode different 
      stimulus intensities at different frequencies, similar to biological neurons. 
      Based on this property, optical inputs are encoded into rectangular pulses of 
      varying intensities and injected into the DFB-SA laser, enabling the convolution 
      results to be represented by the firing rate of the photonic spiking neuron. Both 
      experimental and numerical results show that the binary convolution is 
      successfully achieved based on the rate-encoding properties of a single DFB-SA 
      laser neuron. Furthermore, we numerically predict 4-channel quadratic convolution 
      and accomplish MNIST handwritten digit classification using a spiking DFB-SA 
      laser neuron model with rate coding. This work provides a novel approach for 
      convolution computation, indicating the potential of integrating DFB-SA laser 
      into future photonics spiking neural networks.
FAU - Yu, Chengyang
AU  - Yu C
FAU - Xiang, Shuiying
AU  - Xiang S
FAU - Zhang, Yuna
AU  - Zhang Y
FAU - Song, Ziwei
AU  - Song Z
FAU - Li, Zhiqiang
AU  - Li Z
FAU - Shi, Yuechun
AU  - Shi Y
FAU - Hao, Yue
AU  - Hao Y
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
SB  - IM
EDAT- 2024/01/05 06:42
MHDA- 2024/01/05 06:43
CRDT- 2024/01/05 01:01
PHST- 2024/01/05 06:43 [medline]
PHST- 2024/01/05 06:42 [pubmed]
PHST- 2024/01/05 01:01 [entrez]
AID - 544373 [pii]
AID - 10.1364/OE.499085 [doi]
PST - ppublish
SO  - Opt Express. 2023 Dec 18;31(26):43698-43711. doi: 10.1364/OE.499085.