Implementation of Pruned Backpropagation Neural Network Based on Photonic Integrated Circuits

Zhang, Qi; Xing, Zhuangzhuang; Huang, Dushu

doi:10.3390/photonics8090363

Cited by 4 publications

(2 citation statements)

References 41 publications

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“…Moreover, lower loss boosts the performance of passive structures and coherent light sources. These advantages have driven explosive growth in SiPh, opening up a plethora of new applications, from data centres 6 , to neural networks 11 , to Lidar 12 and to quantum photonics 13 .…”

Section: Mainmentioning

confidence: 99%

Extending the spectrum of fully integrated photonics to submicrometre wavelengths

Tran

Zhang

Morin

et al. 2022

Nature

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Integrated photonics has profoundly affected a wide range of technologies underpinning modern society1–4. The ability to fabricate a complete optical system on a chip offers unrivalled scalability, weight, cost and power efficiency5,6. Over the last decade, the progression from pure III–V materials platforms to silicon photonics has significantly broadened the scope of integrated photonics, by combining integrated lasers with the high-volume, advanced fabrication capabilities of the commercial electronics industry7,8. Yet, despite remarkable manufacturing advantages, reliance on silicon-based waveguides currently limits the spectral window available to photonic integrated circuits (PICs). Here, we present a new generation of integrated photonics by directly uniting III–V materials with silicon nitride waveguides on Si wafers. Using this technology, we present a fully integrated PIC at photon energies greater than the bandgap of silicon, demonstrating essential photonic building blocks, including lasers, amplifiers, photodetectors, modulators and passives, all operating at submicrometre wavelengths. Using this platform, we achieve unprecedented coherence and tunability in an integrated laser at short wavelength. Furthermore, by making use of this higher photon energy, we demonstrate superb high-temperature performance and kHz-level fundamental linewidths at elevated temperatures. Given the many potential applications at short wavelengths, the success of this integration strategy unlocks a broad range of new integrated photonics applications.

show abstract

Section: Mainmentioning

confidence: 99%

Extending the spectrum of fully integrated photonics to submicrometre wavelengths

Tran

Zhang

Morin

et al. 2022

Nature

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show abstract

“…Moreover, lower loss boosts the performance of passive structures and coherent light sources. Capitalizing on these advantages, along with reduced cost and large scale production, SiPh has seen explosive growth in the last few years, opening up a plethora of new applications from neural networks [4] to Lidar [5] to quantum photonics [6].…”

Section: Introductionmentioning

confidence: 99%

Extending the spectrum of fully integrated photonics

Tran¹,

Zhang²,

Morin³

et al. 2021

Preprint

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Integrated photonics has profoundly impacted a wide range of technologies underpinning modern society. The ability to fabricate a complete optical system on a chip offers unrivalled scalability, weight, cost and power efficiency. Over the last decade, the progression from pure III-V materials platforms to silicon photonics has significantly broadened the scope of integrated photonics by combining integrated lasers with the high-volume, advanced fabrication capabilities of the commercial electronics industry. Yet, despite remarkable manufacturing advantages, reliance on silicon-based waveguides currently limits the spectral window available to photonic integrated circuits (PICs). Here, we present a new generation of integrated photonics by directly uniting III-V materials with silicon nitride (SiN) waveguides on Si wafers. Using this technology, we present the first fully integrated PICs at wavelengths shorter than silicon's bandgap, demonstrating essential photonic building blocks including lasers, photodetectors, modulators and passives, all operating at sub-µm wavelengths. Using this platform, we achieve unprecedented coherence and tunability in an integrated laser at short wavelength. Furthermore, by making use of this higher photon energy, we demonstrate superb high temperature performance and, for the first time, kHz-level fundamental linewidths at elevated temperatures. Given the many potential applications at short wavelengths, the success of this integration strategy unlocks a broad range of new integrated photonics applications.

show abstract

Band-Structure-Engineered Electronic-Photonic Nonlinear Activation Functions

Burghoff²

2022

Phys. Rev. Applied

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Implementation of Pruned Backpropagation Neural Network Based on Photonic Integrated Circuits

Cited by 4 publications

References 41 publications

Extending the spectrum of fully integrated photonics to submicrometre wavelengths

Extending the spectrum of fully integrated photonics to submicrometre wavelengths

Extending the spectrum of fully integrated photonics

Band-Structure-Engineered Electronic-Photonic Nonlinear Activation Functions

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