Optimal fiber optic scheme for sub-SQL quantum receiver realization

Practical implementation of high-precision quantum measurements is an important problem in modern science. One of the main parts of the quantum receiver is the optical scheme. We developed and tested several optical circuits based on different types of interferometers, namely Sagnac-based scheme, Ma...

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Veröffentlicht in:Journal of physics. Conference series 2020-12, Vol.1695 (1), p.12140
Hauptverfasser: Shcherbatenko, M, Elezov, M, Sych, D, Goltsman, G N
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creator Shcherbatenko, M
Elezov, M
Sych, D
Goltsman, G N
description Practical implementation of high-precision quantum measurements is an important problem in modern science. One of the main parts of the quantum receiver is the optical scheme. We developed and tested several optical circuits based on different types of interferometers, namely Sagnac-based scheme, Mach-Zehnder-based scheme, and Michelson-based scheme. All these schemes are assembled with optical fibers and fiber-optic components, since the fiber-optic implementation is closest to application in practical devices. Schemes were evaluated according to two main criteria: extinction and interference stability. On the basis of the obtained data, it can be concluded that the most suitable is the scheme based on the Mach-Zehnder interferometer. In continuous mode, we were able to obtain an interference extinction about 30 dB with acceptable temporal stability.
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subjects Acceptable noise levels
Extinction
Fiber optics
Interference
Mach-Zehnder interferometers
Optical fibers
Optics
Physics
Stability analysis
title Optimal fiber optic scheme for sub-SQL quantum receiver realization
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