基于相干双光频梳的微波光子信道化接收技术研究

doi:10.11959/j.issn.1000-436X.2020176

通信学报 ›› 2020, Vol. 41 ›› Issue (12): 94-99.doi: 10.11959/j.issn.1000-436X.2020176

基于相干双光频梳的微波光子信道化接收技术研究

陈博¹^,², 樊养余¹, 高永胜¹

¹ 西北工业大学电子信息学院，陕西西安 710048
² 咸阳师范学院物理与电子工程学院，陕西咸阳 712000

修回日期:2020-06-30 出版日期:2020-12-25 发布日期:2020-12-01
作者简介:陈博（1986- ），男，陕西咸阳人，西北工业大学博士生、咸阳师范学院讲师，主要研究方向为无线光通信、微波光子技术。
樊养余（1960- ），男，陕西蓝田人，西北工业大学教授，主要研究方向为无线光通信、虚拟现实技术。
高永胜（1989- ），男，河南漯河人，西北工业大学副教授，主要研究方向为微波光子技术、光载射频通信。
基金资助:
陕西省重点研发计划基金资助项目(2018NY-158);咸阳师范学院“青年骨干教师”培养基金资助项目(XSYGG201716)

Research on microwave photonic channelization receiving technology based on dual coherent optical frequency comb

Bo CHEN¹^,², Yangyu FAN¹, Yongsheng GAO¹

¹ School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710048, China
² School of Physics ＆Electronic Engineering, Xianyang Normal University, Xianyang 712000, China

Revised:2020-06-30 Online:2020-12-25 Published:2020-12-01
Supported by:
Shaanxi Provincial Key Research and Development Program(2018NY-158);Xianyang Normal University Youth Key Program(XSYGG201716)

摘要/Abstract

摘要：

为了满足宽带通信的发展需求，提出了一种基于相干双光频梳的微波光子信道化接收机，所用的光频梳仅需一个双平行马赫-曾德尔调制器就可生成，平坦度高，外带抑制比高，自由谱范围灵活可调，并且有效简化了接收机的复杂程度。在I/Q解调模块中，利用平衡探测方法不仅有效抑制了二阶交调失真和直流偏移，还提高了接收机的动态范围，同时利用电耦合器配合电带通滤波器解决了超外差架构普遍存在的镜像干扰问题，最终实现了5 GHz带宽射频信号的信道化接收。

关键词: 微波光子, 信道化, 光频梳, 镜像抑制, I/Q平衡探测

Abstract:

In order to meet the future development needs of broadband communications, a microwave photonic channelization receiver based on dual coherent optical frequency comb (OFC) was proposed.The used optical frequency comb can be generated by only a dual parallel Mach-Zehnder modulator (DPMZM), which not only has high degree of flatness and out band rejection ratio, flexible and adjustable free spectrum range, but also effectively simplifies the complexity of the receiver.In the I/Q demodulation module, by the balanced detection method the second-order intermodulation distortion (IMD2) and direct current (DC) offset were effectively suppressed, and the dynamic range of the receiver was improved, at the same time, the electrical hybrid couple (EHC) and electric bandpass filter (EBPF) were used to solve the problem of image interference that is common in superheterodyne architectures.Finally it achieves channelized reception of 5 GHz bandwidth RF signals.

Key words: microwave photonic, channelization, optical frequency comb, image reject, I/Q balanced detection

中图分类号:

TN929.1

陈博, 樊养余, 高永胜. 基于相干双光频梳的微波光子信道化接收技术研究[J]. 通信学报, 2020, 41(12): 94-99.

Bo CHEN, Yangyu FAN, Yongsheng GAO. Research on microwave photonic channelization receiving technology based on dual coherent optical frequency comb[J]. Journal on Communications, 2020, 41(12): 94-99.

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基于相干双光频梳的微波光子信道化接收技术研究

Research on microwave photonic channelization receiving technology based on dual coherent optical frequency comb

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