Device and method for realizing microwave frequency conversion by utilizing double-drive DPMZM

Abstract

The invention discloses a device and method for realizing microwave frequency conversion by utilizing a double-drive DPMZM, relates to the technical field of microwaves and the technical field of optical communication, and is mainly used for frequency conversion of a microwave signal. The method comprises a light source, a radio-frequency signal source, an intrinsic signal source, an electric shunt device, a phase shifter, the double-drive DPMZM and a photoelectric detector (as drawing show). Double-sideband modulation of a radio-frequency signal and a single-sideband modulation of an intrinsic signal are respectively realized by utilizing the double-drive DPMZM; an optical carrier of an output signal of the double-drive DPMZM can be inhibited by reasonably setting a parameter; and, a frequency conversion signal can be obtained after the frequency of the output signal of the double-drive DPMZM is beaten through the photoelectric detector. The scheme has relatively high conversion efficiency; and furthermore, the power periodic fading due to optical fibre dispersion in a signal transmission process can be avoided.

Description

technical field [0001] The invention relates to the technical fields of optical communication and microwave technology, and mainly relates to a method for realizing microwave frequency conversion based on a dual-drive dual-parallel Mazeng modulator (DPMZM) in the optical communication technology. Background technique [0002] Wireless communication technology is a major theme of today's communication technology. With the continuous increase of people's demand for information, the current wireless spectrum resources are very tight. In order to solve this problem, wireless communication systems must use higher frequency carriers for communication. [0003] Microwave frequency conversion is an important basic function in wireless communication systems. It converts the signal up / down to the required frequency. However, in the traditional method, microwave frequency conversion in the electrical domain is limited by the speed bottleneck of electronic devices, and the bandwidth is ...

AI Technical Summary

Problems solved by technology

[0003] Microwave frequency conversion is an important basic function in wireless communication systems. It converts the signal up / down to the required frequency. However, in the traditional method, microwave frequency conversion in the electrical domain is limited by the speed bottleneck of electronic devices, and the bandwidth is limited. , and the system has high complex procedures, large volume, heavy weight, poor flexibility, susceptible to electromagnetic interference, electromagnetic radiation, and large signal loss

With the increasing degree of informatization and the continuous emergence and increase of various multimedia services, the shortcomings of traditional electric domain processing are more prominent

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