Microwave Photonic Up- and Down-Converter with Tunable Phase Shift Based on an Integrated Dual-Polarization Dual-Parallel Mach–Zehnder Modulator without Optically Filtering

IF 2.3 4区 物理与天体物理 Q2 OPTICS
Dou Chen, Jianxin Ma
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引用次数: 4

Abstract

ABSTRACT In this paper, we propose and numerically simulate a microwave photonic phase-tunable frequency converter (MPPTFC) without optically filtering to realize both frequency up- and down-conversion and a full 360° phase-shift for the microwave signal based on an integrated dual-polarization dual-parallel Mach–Zehnder modulator (DP-DPMZM). In the proposed scheme, both microwave RF signal and frequency-tunable local oscillator (LO) are modulated on the lightwave by single-sideband carrier suppression (SSB-CS) modulation to generate optical orthogonally polarized optical tones carrying RF signal with up- or down-converted frequency. A PolM that can support lightwave modulation with opposite modulation indices in transverse electric (TE) and transverse magnetic (TM) modes is used to introduce a phase difference between the two modes. Then the orthogonally polarized optical tones are aligned into a single polarized state by a polarizer (Pol) and detected by a photodiode (PD), a frequency-converted and phase-shifted microwave signal can be obtained. Simulation results demonstrate that the proposed MPPTFC can up-/down-convert the microwave signal with a tunable frequency shift of LO frequency and realize a 360° continuously tunable phase shift via the DC bias voltage of the PolM simultaneously.
基于集成双偏振双平行马赫-曾德调制器的可调相移微波光子上下变换器
本文提出并数值模拟了一种基于集成双偏振双并行马赫-曾德尔调制器(DP-DPMZM)的无光滤波微波光子相位可调频率转换器(MPPTFC),实现了微波信号的上下变频和360°全相移。在该方案中,微波射频信号和频率可调本振(LO)在光波上通过单边带载波抑制(SSB-CS)调制,产生携带频率可上下转换的射频信号的正交偏振光调。在横向电(TE)模式和横向磁(TM)模式下,采用一种能够支持具有相反调制指数的光波调制的PolM来引入两种模式之间的相位差。将正交偏振光调经偏振器(Pol)对准成单偏振态,经光电二极管(PD)检测,得到频率转换相移的微波信号。仿真结果表明,所提出的MPPTFC可以对微波信号进行上/下转换,实现LO频率的可调频移,同时利用PolM的直流偏置电压实现360°连续可调相移。
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
CiteScore
3.40
自引率
0.00%
发文量
4
审稿时长
>12 weeks
期刊介绍: Fiber and Integrated Optics , now incorporating the International Journal of Optoelectronics, is an international bimonthly journal that disseminates significant developments and in-depth surveys in the fields of fiber and integrated optics. The journal is unique in bridging the major disciplines relevant to optical fibers and electro-optical devices. This results in a balanced presentation of basic research, systems applications, and economics. For more than a decade, Fiber and Integrated Optics has been a valuable forum for scientists, engineers, manufacturers, and the business community to exchange and discuss techno-economic advances in the field.
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