Quantum Noise Source Based on Shot Noise of a Balanced Photodetector with a Tunable Integrated Optical Beam Splitter

IF 0.8 4区物理与天体物理 Q4 PHYSICS, APPLIED

Technical Physics Letters Pub Date : 2024-03-14 DOI:10.1134/s1063785023900790

V. V. Lebedev, V. M. Petrov, I. V. Ilichev, P. M. Agruzov, A. V. Shamrai

引用次数: 0

Abstract

A broadband quantum noise source based on detection of shot noise of a balanced photodetector is demonstrated. Precise electro-optical tuning of the balanced photodetector circuit was carried out by an integrated optical beam splitter constructed in the form of the dual output Mach–Zehnder interferometer on a lithium niobate substrate. The classical component of the detected noise related to the relative intensity noise of a laser diode was suppressed by more than 15 dB. At the maximum laser power of 100 mW, the power spectral density of detected shot noise was 12 dB higher than the level of technical noise of the measuring system in the frequency band above 3 GHz.

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基于带有可调谐集成光束分束器的平衡光电探测器射出噪声的量子噪声源

摘要展示了一种基于平衡光电探测器射出噪声检测的宽带量子噪声源。通过在铌酸锂衬底上以双输出马赫-泽恩德干涉仪形式构建的集成光分束器，对平衡光电探测器电路进行了精确的电光调谐。检测到的噪声中与激光二极管相对强度噪声有关的经典成分被抑制了 15 分贝以上。在最大激光功率为 100 mW 时，在 3 GHz 以上频段，检测到的发射噪声的功率谱密度比测量系统的技术噪声水平高出 12 dB。

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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来源期刊

Technical Physics Letters 物理-物理：应用

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Technical Physics Letters is a companion journal to Technical Physics and offers rapid publication of developments in theoretical and experimental physics with potential technological applications. Recent emphasis has included many papers on gas lasers and on lasing in semiconductors, as well as many reports on high Tc superconductivity. The excellent coverage of plasma physics seen in the parent journal, Technical Physics, is also present here with quick communication of developments in theoretical and experimental work in all fields with probable technical applications. Topics covered are basic and applied physics; plasma physics; solid state physics; physical electronics; accelerators; microwave electron devices; holography.

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