Enhancement of calculation accuracy of the integrated photonic tensor flow processer by global optical power allocation

We present a global optical power allocation architecture, which can enhance the calculation accuracy of the integrated photonic tensor flow processor (PTFP). By adjusting the optical power splitting ratio according to the weight value and loss of each calculating unit, this architecture can efficie...

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Bibliographic Details
Published inOptics letters Vol. 47; no. 24; p. 6409
Main Authors Yi, Sicheng, Xu, Shaofu, Wang, Jing, Zou, Weiwen
Format Journal Article
LanguageEnglish
Published United States 15.12.2022
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Summary:We present a global optical power allocation architecture, which can enhance the calculation accuracy of the integrated photonic tensor flow processor (PTFP). By adjusting the optical power splitting ratio according to the weight value and loss of each calculating unit, this architecture can efficiently use optical power so that the signal-to-noise ratio of the PTFP is enhanced. In the case of considering the on-chip optical delay line and spectral loss, the calculation accuracy measured in the experiment is enhanced by more than 1 bit compared with the fixed optical power allocation architecture.
ISSN:1539-4794
DOI:10.1364/OL.477426