High-speed laser-microwave link serial-parallel conversion method

A microwave link and conversion method technology, which is applied in parallel/serial conversion, code conversion, electrical components, etc., can solve the problems of the mismatch between the rate of the laser link and the microwave link, and the difficulty of laser signal conversion, etc., to achieve zero The effects of packet loss, high isolation, and low crosstalk

Active Publication Date: 2020-04-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the rate of the existing laser link and the microwave link does not match, and it is difficult to realize the conversion of the laser signal with a higher rate in the electrical domain, the present invention provides a high-speed laser-microwave link serial-to-parallel conversion method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-speed laser-microwave link serial-parallel conversion method
  • High-speed laser-microwave link serial-parallel conversion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] see figure 1 , taking 10Gbps laser data speed reduction as an example:

[0094] (1) The 10Gbps high-speed NRZ optical signal is converted into an electrical signal by the first photodetector 1 (PD);

[0095] (2) The converted electrical signal enters the clock data recovery unit 2 (CDR), and the 10Gbps data and 5GHz clock signal are recovered by the clock data recovery unit 2 (CDR);

[0096] (3) The laser 3 emits continuous light to the Mach-Zehnder modulator 4, and the 10Gbps data is re-modulated to the optical carrier by the Mach-Zehnder modulator 4 (MZM), converted into a 10Gbps optical signal and enters the first all-optical serial parallel conversion unit;

[0097] (4) In the first all-optical serial-to-parallel conversion unit, the first dual-output Mach-Zehnder modulator 6 realizes the selection and separation of odd and even channels, and by controlling the first optical delay device (ODL), the 5GHz clock and the 10Gbps optical signal pair Accurate, obtain 2 ...

Embodiment 2

[0104] The difference from Embodiment 1 is that, see figure 2 , step 1.3): the 10Gbps data is remodulated onto the optical carrier through the Mach-Zehnder modulator 4 (MZM), converted into a 10Gbps optical signal and first enters the amplifier 14 for amplification, and then enters the first all-optical serial-to-parallel conversion unit; the amplifier 14 It can be an erbium-doped fiber amplifier.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a high-speed laser-microwave link serial-parallel conversion method, and solves the problem that the rates of an existing laser link and an existing microwave link are not matched. The method comprises the following steps: 1) performing speed reduction of a high-speed optical signal: 1.1) converting an M Gbps high-speed NRZ optical signal into an electric signal; 1.2) allowing the electric signals to enter a clock data recovery unit to recover M Gbps data and M / 2 GHz clock signals; 1.3) re-modulating the M Gbps data to an optical carrier through a Mach-Zehnder modulator,and converting the M Gbps data to an M Gbps optical signal; 1.4) allowing the first dual-output Mach-Zehnder modulator to select and separate odd and even channels of the M Gbps optical signals, andoutputting two paths of M / 2 Gbps RZ optical signals with high isolation and low crosstalk; and 2, judging whether the data rate of the output optical signal after speed reduction is smaller than or equal to the maximum value A of the speed reduction output signal or not, if not, continuously reducing the speed until the condition is met, and allowing the 2N paths of M / 2N Gbps RZ signals after speed reduction to enter a D trigger, and outputting 2N paths of M / 2N Gbps NRZ signals.

Description

technical field [0001] The invention belongs to space laser communication technology, in particular to a high-speed laser-microwave link serial-to-parallel conversion method. Background technique [0002] With the rapid development of information technology and space technology, the amount of information acquired by various aircraft in space and near space and needs to be transmitted and processed is showing explosive growth. It is estimated that by 2020, the data rate of synthetic aperture radar will reach 60Gbps, and the data rate of hyperspectral imager will reach 100Gbps. high demands. Compared with microwave communication, satellite laser communication has the advantages of frequency bandwidth, small antenna size, small size, light weight, low power consumption, good confidentiality, strong anti-interference ability, and no frequency supervision restrictions, etc. The integrated information transmission system requires high-speed, large-capacity, multi-service informa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H03M9/00
CPCH03M9/00
Inventor 高铎瑞谢小平汪伟谢壮胡辉苏玉龙
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap