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DPMZM-based microwave photon down converter and microwave receiving system

A technology of microwave photonics and frequency converters

Active Publication Date: 2021-02-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By adjusting the DC bias VDC i' (i=1, 2 and 3) make DPMZM 104 work in carrier suppression double sideband modulation state, thereby suppressing third-order intermodulation distortion (ThirdOrder Intermodulation Distortion, IMD3), the frequency conversion efficiency of this scheme is improved compared to other existing technologies, But the dynamic range improvement is still not ideal

Method used

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  • DPMZM-based microwave photon down converter and microwave receiving system
  • DPMZM-based microwave photon down converter and microwave receiving system
  • DPMZM-based microwave photon down converter and microwave receiving system

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0035]The DPMZM-based microwave photon downconverter provided in the embodiment of the present application includes: a laser, an optical power splitter, a radio frequency signal source RF, a local oscillator signal source LO, a bias control module, a first electric power splitter, a second electric Power splitter, first electrical attenuator, second electrical attenuator, first dual parallel Mach-Zehnder modulator DPMZM1, second dual parallel Mach-Ze...

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Abstract

The embodiment of the invention discloses a DPMZM-based microwave photon down converter, which comprises a laser, an optical power divider, a radio frequency signal source, a local oscillator signal source and a bias control module, the system comprises a first electric power divider, a second electric power divider, a first electric attenuator, a second electric attenuator, a first double-parallel Mach-Zehnder modulator DPMZM1, a second double-parallel Mach-Zehnder modulator DPMZM2 and a balance photoelectric detector BPD. The optical power divider receives optical carriers output by the laser and equally divides the optical carriers into two paths, one path of optical carrier is connected with an optical input port of the DPMZM1, and the other path of optical carrier is connected with anoptical input port of the DPMZM2; the first electric power divider equally divides a radio frequency signal into two paths, one path is connected with a radio frequency input port of the MZM1, and the other path is connected with a radio frequency input port of the MZM4 after passing through the first electric attenuator. The microwave photon down converter provided by the invention has the advantages of high frequency conversion efficiency and large dynamic range.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a microwave photon down converter and a microwave receiving system based on a dual parallel Mach-Zehnder modulator (DualParallel Mach-Zehnder Modulator, DPMZM). Background technique [0002] At present, the field of communication is developing towards high frequency band, large bandwidth and high speed. Microwave and millimeter wave technology has become the choice of next-generation broadband wireless communication. As an indispensable part of the communication system, the microwave receiving system is also faced with The challenge of higher performance. [0003] Microwave photonics combines many advantages of microwave and optical fiber communication, and solves the problems of limited signal frequency and bandwidth, long transmission distance and large loss in broadband wireless communication systems. Therefore, microwave photonic technology has become a current researc...

Claims

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Application Information

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IPC IPC(8): H04B10/516H04B10/54H04B10/60
CPCH04B10/5165H04B10/541H04B10/60
Inventor 张伟伟刘鹏李旭
Owner HUAWEI TECH CO LTD
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