Review Article

An introduction of magnetic-free optical nonreciprocity

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  • Laboratory of Laser Physics and Quantum Coherent Control, Department of Physics, East China University of Science and Technology, Shanghai 200237, China

Received date: 2019-07-09

  Accepted date: 2019-09-16

  Online published: 2019-10-21

Abstract

Optical nonreciprocal devices, such as optical isolators, circulators and phase shifts, are basic units of all-optical communications and have important applications in optical signal processing and quantum networks. Standard approaches for optical nonreciprocity make use of magneto-optical properties (e.g. Faraday rotation), which however requires large magnetic fields, and thus makes it difficult for integration on a small scale. To overcome this problem, other magnetic-free approaches have been proposed. In this paper, we will introduce recent developments on magnetic-free optical nonreciprocity, and also our recent research on thermal motion induced optical nonreciprocity and unidirectional amplification.

Cite this article

ZHANG Shicheng, NIU Yueping, LIN Gongwei, GONG Shangqing . An introduction of magnetic-free optical nonreciprocity[J]. Chinese Journal of Nature, 2019 , 41(5) : 343 -347 . DOI: 10.3969/j.issn.0253-9608.2019.05.004

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