降低可调谐线性光子集成电路的表征能力

IF 1.4 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2024-08-11 DOI:10.1134/S0021364024601477
L. V. Biguaa, K. G. Katamadzhe, B. I. Bantysh, Yu. I. Bogdanov
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引用次数: 0

摘要

可调谐线性光子电路是经典和量子信息技术的重要组成部分。这种电路只能以集成形式进行缩放,由于无法单独重建每个元件,这就使其表征变得复杂。现有的线性光子电路表征方法需要在不同的控制参数值下多次改变传输矩阵元素的相位,这给实验带来了很大困难。本研究提出了一种新方法:只测量光子电路控制参数特定值下的传输系数,就能建立一个数学模型,预测任意参数值下的传输系数。这种方法已成功应用于实现任意单位变换的可调四通道干涉仪的数值实验中。所提出的方法为高效鉴定和设计可调谐线性光子电路提供了新的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Reduced Characterization of Tunable Linear Photonic Integrated Circuits

Tunable linear photonic circuits are important elements in both classical and quantum information technologies. The scaling of such circuits is possible only in the integrated form, which complicates their characterization because of the impossibility of the reconstruction of each element individually. The existing methods of characterization of linear photonic circuits require multiple changes in the phases of transfer matrix elements at various values of control parameters, which provides significant experimental difficulties. In this work, a new approach is proposed: it is demonstrated that the measurement of only transmission coefficients for certain values of the control parameters of the photonic circuit allows the development of a mathematical model that can predicts transmission coefficients for arbitrary values of the parameters. This method has been successfully approved in a numerical experiment for a tunable four-channel interferometer implementing an arbitrary unitary transformation. The proposed method provides new possibilities to efficiently characterize and design tunable linear photonic circuits.

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来源期刊
JETP Letters
JETP Letters 物理-物理:综合
CiteScore
2.40
自引率
30.80%
发文量
164
审稿时长
3-6 weeks
期刊介绍: All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
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