Danielius Kramnik

EECS Department, University of California, Berkeley

Technical Report No. UCB/

December 1, 2024

http://www2.eecs.berkeley.edu/Pubs/TechRpts/Hold/2a8bb5aa144d3f5d5287dcb448680a5f.pdf

Photonics is a compelling approach for the development of quantum technologies such as quan- tum computing, secure communication, and sensing due to its robustness to decoherence at room temperature, natural compatibility with optical interconnects for entanglement distribution, and ability to be miniaturized into chip-scale devices. Silicon photonics offers the most scalable platform for quantum-photonic systems, enabling them to be built using mature semiconductor fabrication techniques developed in the complementary metal-oxide-semiconductor (CMOS) microelectronics industry, which routinely produces silicon chips with billions of functioning transistors in high vol- umes. As these systems scale up, however, it becomes increasingly challenging to simultaneously calibrate out process variations affecting integrated photonic devices and protect them against thermal fluctuations from the environment and each other. To date this has been carried out us- ing bulky off-chip electronics, sacrificing many benefits of a chip-scale platform and limiting the practically achievable size of such systems. Thus, realizing the full potential of silicon photonics as a platform for quantum information processing still requires this classical control bottleneck to be resolved. This thesis presents device, circuit, and system-level approaches towards solving this challenge. By monolithically integrating quantum photonics and electronics on the same CMOS die manufactured at a commercial foundry, we enable the calibration and control of silicon quantum photonic systems at the scale needed for useful quantum information processing.

Advisors: Vladimir Stojanovic

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BibTeX citation:

@phdthesis{Kramnik:31546,
    Author= {Kramnik, Danielius},
    Title= {Quantum Photonics and Electronics on a CMOS Chip},
    School= {EECS Department, University of California, Berkeley},
    Year= {2024},
    Number= {UCB/},
    Abstract= {Photonics is a compelling approach for the development of quantum technologies such as quan- tum computing, secure communication, and sensing due to its robustness to decoherence at room temperature, natural compatibility with optical interconnects for entanglement distribution, and ability to be miniaturized into chip-scale devices. Silicon photonics offers the most scalable platform for quantum-photonic systems, enabling them to be built using mature semiconductor fabrication techniques developed in the complementary metal-oxide-semiconductor (CMOS) microelectronics industry, which routinely produces silicon chips with billions of functioning transistors in high vol- umes. As these systems scale up, however, it becomes increasingly challenging to simultaneously calibrate out process variations affecting integrated photonic devices and protect them against thermal fluctuations from the environment and each other. To date this has been carried out us- ing bulky off-chip electronics, sacrificing many benefits of a chip-scale platform and limiting the practically achievable size of such systems. Thus, realizing the full potential of silicon photonics as a platform for quantum information processing still requires this classical control bottleneck to be resolved. This thesis presents device, circuit, and system-level approaches towards solving this challenge. By monolithically integrating quantum photonics and electronics on the same CMOS die manufactured at a commercial foundry, we enable the calibration and control of silicon quantum photonic systems at the scale needed for useful quantum information processing.},
}

EndNote citation:

%0 Thesis
%A Kramnik, Danielius 
%T Quantum Photonics and Electronics on a CMOS Chip
%I EECS Department, University of California, Berkeley
%D 2024
%8 December 1
%@ UCB/
%F Kramnik:31546