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All-optical network node picosecond pulse signal relative time difference corrector

A picosecond pulse, all-optical network technology, applied in the all-optical network, optical fiber communication field, can solve the problem of difficult single-frame picosecond pulse signal correction and other problems

Active Publication Date: 2021-02-26
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in all-optical networks, time difference monitoring usually adopts the method of setting redundant pilot codes in the frame header for multi-frame information, but this method is difficult to correct the relative time difference of single-frame picosecond pulse signals between network nodes

Method used

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  • All-optical network node picosecond pulse signal relative time difference corrector

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] Such as figure 1 , an all-optical network node picosecond pulse signal relative time difference correction instrument, including a mode-locked laser 1, a controllable optical splitter 2, a single-mode transmission fiber 3, first and second picosecond pulse signal generators 01, 02, a first , second optical modulator 11, 12, first, second adjustable laser 21, 22, first, second optical circulator 31, 32, first, second adjustable gain controller 41, 42, first , second high-speed photodetectors 51, 52, first to fourth 2×1 optical couplers 611, 612, 621, 622, first and second phase shift gratings 71 and 72, first and second pump light sources 101, 102, first and second all-optical network node processors 91, 92.

[0012] The connection of each device is as follows:

[0013] The output port of the mode-locked laser 1 is connected to the input port of the controllab...

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Abstract

An all-optical network node picosecond pulse signal relative time difference corrector is suitable for the field of optical fiber communication and all-optical networks. The corrector includes a mode-locked laser (1), a controllable beam splitter (2), a single-mode transmission fiber (3), first and second picosecond pulse signal generators (01, 02), first and second optical modulators (11, 12), first and second tunable lasers (21, 22), first and second optical circulators (31, 32), first and second adjustable gain controllers (41, 42), first and second high-speed photodetectors (51, 52), firstto fourth 2*1 optical couplers (611, 612, 621, 622), first and second phase shift gratings (71, 72), first and second pump light sources (101, 102), and first and second all-optical network node processors (91, 92).

Description

technical field [0001] The invention relates to the field of optical fiber communication and all-optical network, in particular to a device for correcting relative time difference of picosecond pulse signal of all-optical network nodes. Background technique [0002] With the rapid development of optical fiber communication technology and the maturity of multimedia communication technology, people's demand for high speed and broadband is increasing. All-optical signal processing technology is expected to break through the bottleneck of electronic speed and greatly increase the single-channel transmission rate in the network. However, with the development of all-optical networks, the amount of data that network nodes need to process increases sharply, and the data formats become more and more complex. The coordination between nodes in the network is not coordinated, and data conflicts and network congestion often occur. In order to achieve effective cooperation and unified man...

Claims

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Application Information

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IPC IPC(8): H04B10/50H04B10/508H04B10/516H01S3/10
CPCH04B10/50577H04B10/508H04B10/516H01S3/10053
Inventor 董小伟王志军
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY