ArticleNature communications2023
All-fibre phase filters with 1-GHz resolution for high-speed passive optical logic processing.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- All-optical logic processing unit using Kerr nonlinearity of MXene.Nature communications · 2026Article
- Linear optical wave energy redistribution methods for photonic signal processing.Npj nanophotonics · 2025Review
- Optics-Enabled Highly Scalable Inverter for Multi-Valued Logic.Laser & photonics reviews · 2024Article
- Metatronics-inspired high-selectivity metasurface filter.Nanophotonics (Berlin, Germany) · 2024Article
- All-in-one, all-optical logic gates using liquid metal plasmon nonlinearity.Nature communications · 2024Article
Corrections and comments
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Authors and funding
6 authors.
Funding
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Abstract
Photonic-based implementation of advanced computing tasks is a potential alternative to mitigate the bandwidth limitations of electronics. Despite the inherent advantage of a large bandwidth, photonic systems are generally bulky and power-hungry. In this respect, all-pass spectral phase filters enable simultaneous ultrahigh speed operation and minimal power consumption for a wide range of signal processing functionalities. Yet, phase filters offering GHz to sub-GHz frequency resolution in practical, integrated platforms have remained elusive. We report a fibre Bragg grating-based phase filter with a record frequency resolution of 1 GHz, at least 10× improvement compared to a conventional optical waveshaper. The all-fibre phase filter is employed to experimentally realize high-speed fully passive NOT and XNOR logic operations. We demonstrate inversion of a 45-Gbps 127-bit random sequence with an energy consumption of ~34 fJ/bit, and XNOR logic at a bit rate of 10.25 Gbps consuming ~425 fJ/bit. The scalable implementation of phase filters provides a promising path towards widespread deployment of compact, low-energy-consuming signal processors.
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Registered trials
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