Ultra-Broadband Microwave Frequency Measurement Based on Two-Dimensional Information Mapping via Transient Stimulated Brillouin Scattering of Chirped Optical Pulse Sequences

IF 4.1 1区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Lightwave Technology Pub Date : 2024-10-22 DOI:10.1109/JLT.2024.3485066

Shuai Zu;Yiying Gu;Ying Wang;Jiachen Yu;Xun Wang;Jingjing Hu;Mingshan Zhao

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引用次数: 0

Abstract

This paper proposes a system based on the chirped optical pulse sequence (COPS)-stimulated Brillouin scattering (SBS) effect that utilizes two-dimensional information mapping to realize instantaneous, high-precision and ultra-broadband microwave frequency measurement (MFM). In the proposed MFM system, the unknown signals of different frequencies are frequency-selected by the SBS effect on the COPS to obtain time-dimensional information corresponding to the frequency. The differential response of the optical band-pass filter at different wavelengths is then used to acquire the amplitude-dimensional information corresponding to the frequency. Simultaneous mapping of these dimensions allows for high-precision measurement of the signal under test. The proposed system's single-tone, dual-tone and quad-tone microwave frequency measurements are validated experimentally, and the proposed system exhibits a minimum measurement time of 100 ns with a frequency measurement accuracy of less than 1 MHz and an instantaneous bandwidth exceeding 20 GHz.

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啁啾光脉冲序列瞬态受激布里渊散射二维信息映射的超宽带微波频率测量

本文提出了一种基于啁啾光脉冲序列（COPS）受激布里渊散射（SBS）效应的系统，利用二维信息映射实现瞬时、高精度、超宽带微波频率测量。在MFM系统中，利用COPS的SBS效应对不同频率的未知信号进行选频，获得该频率对应的时维信息。然后利用带通滤波器在不同波长处的差分响应来获取频率对应的幅维信息。这些尺寸的同时映射允许高精度测量被测信号。实验验证了该系统的单音、双音和四音微波频率测量，该系统的最小测量时间为100 ns，频率测量精度小于1 MHz，瞬时带宽超过20 GHz。

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

Journal of Lightwave Technology 工程技术-工程：电子与电气

CiteScore

9.40

自引率

14.90%

发文量

936

审稿时长

3.9 months

期刊介绍： The Journal of Lightwave Technology is comprised of original contributions, both regular papers and letters, covering work in all aspects of optical guided-wave science, technology, and engineering. Manuscripts are solicited which report original theoretical and/or experimental results which advance the technological base of guided-wave technology. Tutorial and review papers are by invitation only. Topics of interest include the following: fiber and cable technologies, active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; and systems, subsystems, new applications and unique field trials. System oriented manuscripts should be concerned with systems which perform a function not previously available, out-perform previously established systems, or represent enhancements in the state of the art in general.