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Neuromorphic Computing Based on Wavelength-Division Multiplexing
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DOI：10.1109/JSTQE.2022.3203159.png)
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Optical neural networks (ONNs), or optical neuromorphic hardware accelerators, have the potential to dramatically enhance the computing power and energy efficiency of mainstream electronic processors, due to their ultra-large bandwidths of up to 10's of terahertz together with their analog architecture that avoids the need for reading and writing data back-and-forth. Different multiplexing techniques have been employed to demonstrate ONNs, amongst which wavelength-division multiplexing (WDM) techniques make sufficient use of the unique advantages of optics in terms of broad bandwidths. Here, we review recent advances in WDM-based ONNs, focusing on methods that use integrated microcombs to implement ONNs. We present results for human image processing using an optical convolution accelerator operating at 11 Tera operations per second. The open challenges and limitations of ONNs that need to be addressed for future applications are also discussed.
Keyword:
Bandwidth
Oscillators
Optical resonators
Wavelength division multiplexing
Nonlinear optics
Optical imaging
Optics
Optical microcombs
optical neural networks
wavelength division multiplexing
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5.1
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被引数:
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