通过时间上采样和可训练编码在电信设备平台上的光学神经形态计算
Egor Manuylovich1, Dmitrii Stoliarov1, David Saad2
1Aston Institute of Photonic Technologies, Aston University, Birmingham, UK.
Nanophotonics (Berlin, Germany)
|August 13, 2025
概括
这项研究引入了一种使用电信光学设备进行神经形态计算的新方法. 它允许高效地将信号映射到高维空间,用于水库计算 (RC) 和极端学习机器 (ELM).
科学领域:
- 神经形态计算是一种神经形态计算.
- 光学信号处理的光学信号处理.
- 这些光子设备是光子设备.
背景情况:
- 将输入信号映射到高维空间对于神经形态计算模型,如储库计算 (RC) 和极端学习机器 (ELM) 来说至关重要.
- 现有的方法往往需要复杂或专门的硬件.
- 高速光学数据传输技术为高效的信号操纵提供了潜力.
研究的目的:
- 通过商用电信光学设备,提出和展示一种新的RC和ELM实施方法.
- 为了利用非线性光学映射在高维空间高效的信号处理.
- 调查时间提升采样和波分复合 (WDM) 对特征空间操纵的影响.
主要方法:
- 使用半导体光学放大器和非线性马赫-泽恩德干扰仪 (MZI) 等电信设备进行非线性光学信号映射.
- 使用可训练编码面具实现时间上采样,以增加特征空间的表示能力.
- 应用波分复杂化 (WDM) 来操纵输出特征维度.
主要成果:
- 证明了使用随时可用的光子设备用于RC和ELM的可行性.
- 展示了动态相位掩饰对于灵活的输入信号操纵的有效性.
- 在输出状态的增强可控分离性和可预测性方面描述了非线性映射.
结论:
- 拟议的方法提供了一种灵活而高效的方法,可以使用现有的电信基础设施来实现神经形态计算模型.
- 光子设备提供了一个强大的平台,用于创建高级AI必不可少的高维特征空间.
- 这种方法为可扩展和具有成本效益的神经形态硬件铺平了道路.
相关概念视频
01:22Upsampling
310
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
310
01:20Downsampling
253
When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
253
01:18Imaging Biological Samples with Optical Microscopy
5.3K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
5.3K