Work

Telecom-band Multi-Type Spontaneous Parametric Downconversion in Periodically Polarized Nonlinear Materials

Year: 2022

Type: preprint

Abstract: Spontaneous parametric downconversion is an essential technique in quantum optics experiments. In this paper, various quasi-phase-matching processes in several typical periodically polarized nonlinear materials are analyzed and calculated. Furthermore, a general method for realizing multiple types of quasi-phase-matching in a monolithic material is presented. Finally, a novel design to prepare multiple entangled photon pairs based on the Sagnac interferometer is discussed. This technology can be applied to tiny optical paths in the telecom C band, saving both cost and space.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2207.04758

Authors: Liu, Xi-Yu, Yu, Ya-Fei, Wei, Zheng-Jun, Zhao, Tian-Ming, Wang, Jin-Dong

Institution: South China Normal University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: National Natural Science Foundation of China

Award: G5718718846

OpenAlex ID: W4285077915

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