Generating transverse-mode entanglement in optical fiber

Dong Beom Kim; Alfred B. U'ren; Karina Garay-Palmett; Virginia O. Lorenz

doi:10.1117/12.2654965

8 March 2023 Generating transverse-mode entanglement in optical fiber

Dong Beom Kim, Alfred B. U'ren, Karina Garay-Palmett, Virginia O. Lorenz

Proceedings Volume 12446, Quantum Computing, Communication, and Simulation III; 124460U (2023) https://doi.org/10.1117/12.2654965
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We report our recent progress in the generation and verification of a transverse-mode Bell state using spontaneous four-wave mixing in a few-mode polarization-maintaining fiber. Utilizing spatial light modulators, we show control over individual four-wave mixing processes through precise beam shaping of the pump transverse mode and verify entanglement via quantum state tomography. We discuss challenges in temporal and frequency distinguishability and illustrate how they can be resolved. This work represents a first step towards creating a versatile fiber-based transverse mode-entangled photon-pair source matched to fiber infrastructure.

Citation Download Citation

Dong Beom Kim, Alfred B. U'ren, Karina Garay-Palmett, and Virginia O. Lorenz "Generating transverse-mode entanglement in optical fiber", Proc. SPIE 12446, Quantum Computing, Communication, and Simulation III, 124460U (8 March 2023); https://doi.org/10.1117/12.2654965

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KEYWORDS

Quantum entanglement

Spatial light modulators

Optical fibers

Four wave mixing

Quantum states

Quantum control

Quantum sources

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