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Multi-core optical fiber crosstalk monitoring method and system based on neural network

A multi-core optical fiber and neural network technology, applied in the field of optical fiber communication and optical network, can solve problems such as lack of monitoring dynamic crosstalk, and achieve the effect of small error, low complexity and high accuracy

Pending Publication Date: 2021-12-24
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

For the actual multi-core optical fiber space division multiplexing system, there is still a lack of suitable technology to monitor the dynamic crosstalk online under the normal operation of the system

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  • Multi-core optical fiber crosstalk monitoring method and system based on neural network
  • Multi-core optical fiber crosstalk monitoring method and system based on neural network
  • Multi-core optical fiber crosstalk monitoring method and system based on neural network

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0039] In order to solve the problems existing in the existing technology, such as figure 1 As shown, the present invention provides a kind of neural network-based multi-core optical fiber crosstalk monitoring method, comprising the steps of:

[0040] Step 1: In the intensity modulation-direct detection multi-core optical fiber space division multiplexing system, multiple intensity-modulated op...

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Abstract

The invention discloses a multi-core optical fiber crosstalk monitoring method based on a neural network. The method comprises the following steps: collecting an original time sequence signal at a receiving end, and measuring by using a power meter to obtain a crosstalk value; carrying out asynchronous sampling on the original time sequence signal to obtain an asynchronous amplitude histogram; inputting the asynchronous amplitude histogram and the corresponding crosstalk label value into a neural network for training to obtain a trained neural network; and a signal in a current link is obtained, and after an asynchronous amplitude histogram is obtained through asynchronous sampling, the asynchronous amplitude histogram is input into the trained neural network, so that real-time online monitoring of the crosstalk of the multi-core optical fiber in the space division multiplexing system can be realized. According to the multi-core optical fiber crosstalk monitoring method based on the neural network, the crosstalk which fluctuates severely in a space division multiplexing link can be monitored dynamically in real time, and a solid operation and maintenance technical support is provided for stable transmission of a space division multiplexing system. The invention further provides a corresponding multi-core optical fiber crosstalk monitoring system based on the neural network.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication and optical network, and more specifically relates to a neural network-based multi-core optical fiber crosstalk monitoring method and system. Background technique [0002] In the way of doubling the optical fiber communication capacity, the space-division multiplexing optical fiber represented by multi-core optical fiber can well fill the gap in the current system capacity in the spatial dimension of light. At present, the intensity modulation-direct detection system based on multi-core optical fiber space division multiplexing has a high application prospect in the short-distance optical interconnection of data centers. However, the extremely small distance between the cores of multi-core optical fibers introduces a new physical damage to the optical fiber communication system - inter-core crosstalk. [0003] The essence of inter-core crosstalk in multi-core optical fibers is...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06N3/04G06N3/08G06F17/18
CPCG06N3/04G06N3/08G06F17/18G06F2218/08
Inventor 唐明张茂奇
Owner HUAZHONG UNIV OF SCI & TECH
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