Performance analysis of DD-DPMZM based RoF link for emerging wireless networks

IF 1.2 4区工程技术 Q4 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Analog Integrated Circuits and Signal Processing Pub Date : 2024-01-22 DOI:10.1007/s10470-023-02231-2

Balram Tamrakar, Krishna Singh, Parvin Kumar, Varun Gupta

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引用次数: 0

Abstract

This paper demonstrates the analytical approach of Linearized Radio over Fiber (RoF) link based on Dual-Drive Dual Parallel Mach Zehnder Modulator (DD-DPMZM) by properly adjusting the phase shifters and biasing of the Mach Zehnder Modulator (MZM). Two input RF Source at 7 and 8 GHz applied in the used RoF link. The proposed RoF link consists of Mach Zehnder Modulator (MZM), Parallel combination of Mach Zehnder Modulators, optical fiber, and photodetector (PD). Third Order Intermodulation Distortions (IMD3) factor act as a major issue, which is responsible as performance degradation factor. Major sources of IMD3 spurious components have been investigated and suppressed in theoretical analysis before photodetection. The proposed method is designed with the help of OptSim simulation software, to confirm and validate the analytical analysis and simulation results. Analytical analysis & simulation results show that, 40 dB suppression found in IMD3 spurious components, and 30 dB.Hz^2/3 enhancement found in Spurious Free Dynamic Range (SFDR), for the proposed linearized RoF link as compared to conventional MZM RoF link. The Measured SFDR is also founded as 26 dB.Hz^2/3, 5 dB.Hz^2/3, & 10 dB.Hz^2/3 for different optical fiber impairments as 8 km, 10 km & 15 km respectively for used DD-DPMZM based RoF link.

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基于 DD-DPMZM 的 RoF 链路在新兴无线网络中的性能分析

摘要本文通过适当调整马赫泽恩德调制器（MZM）的移相器和偏置，展示了基于双驱动双并行马赫泽恩德调制器（DD-DPMZM）的线性化光纤无线电（RoF）链路的分析方法。所使用的 RoF 链路采用 7 和 8 千兆赫的两个输入射频源。拟议的 RoF 链路由马赫泽恩德调制器 (MZM)、马赫泽恩德调制器平行组合、光纤和光电探测器 (PD) 组成。三阶互调失真 (IMD3) 因子是一个主要问题，是造成性能下降的因素。在进行光电检测之前，已通过理论分析调查并抑制了 IMD3 杂散成分的主要来源。在 OptSim 仿真软件的帮助下设计了所提出的方法，以确认和验证分析和仿真结果。分析和仿真结果表明，与传统的 MZM RoF 链路相比，拟议的线性化 RoF 链路的 IMD3 杂散成分抑制了 40 dB，无杂散动态范围（SFDR）提高了 30 dB.Hz2/3。对于基于 DD-DPMZM 的 RoF 链路，在 8 千米、10 千米和 15 千米的不同光纤损伤条件下，测量的 SFDR 分别为 26 dB.Hz2/3、5 dB.Hz2/3、10 dB.Hz2/3。

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

Analog Integrated Circuits and Signal Processing 工程技术-工程：电子与电气

CiteScore

0.30

自引率

7.10%

发文量

141

审稿时长

7.3 months

期刊介绍： Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today. A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.