Method and system for compensating noise of optical communication system

文档序号：721244 发布日期：2021-04-16 浏览：7次中文

阅读说明：本技术 一种光通信系统噪声的补偿方法及系统 (Method and system for compensating noise of optical communication system ) 是由彭羽虹于 2020-11-24 设计创作，主要内容包括：本发明公开了一种光通信系统噪声的补偿方法及系统,包括信号获取模块、光功率采集模块、光传输距离采集模块、光功率检测模块、光传输距离检测模块、计算模块、分析整合模块、数据反馈模块、噪声补偿模块、色散补偿光纤和输出记录模块,所述信号获取模块用于获取光信号,所述光功率采集模块用于采集光信号功率；本发明方便人们直观的了解整个光通信系统的不足之处,有助于人们针对情况采取解决措施,能够记录噪声补偿模块补偿的噪声数值,并且储存后发送至外部终端,方便人们了解到噪声补偿数值,并且可以将所得的缺失数值和补偿数值进行比对,从而判断出补偿数值是否完全,避免出现补偿不完全的现象。(The invention discloses a method and a system for compensating noise of an optical communication system, which comprises a signal acquisition module, an optical power acquisition module, an optical transmission distance acquisition module, an optical power detection module, an optical transmission distance detection module, a calculation module, an analysis integration module, a data feedback module, a noise compensation module, a dispersion compensation optical fiber and an output recording module, wherein the signal acquisition module is used for acquiring an optical signal, and the optical power acquisition module is used for acquiring optical signal power; the invention is convenient for people to intuitively know the defects of the whole optical communication system, is beneficial to taking solution measures according to the situation, can record the noise value compensated by the noise compensation module, stores the noise value and sends the stored noise value to an external terminal, is convenient for people to know the noise compensation value, and can compare the obtained missing value with the compensation value, thereby judging whether the compensation value is complete or not and avoiding the phenomenon of incomplete compensation.)

1. A compensation system of optical communication system noise is characterized by comprising a signal acquisition module, an optical power acquisition module, an optical transmission distance acquisition module, an optical power detection module, an optical transmission distance detection module, a calculation module, an analysis integration module, a data feedback module, a noise compensation module, a dispersion compensation optical fiber and an output recording module;

the signal acquisition module is used for acquiring an optical signal;

the optical power acquisition module is used for acquiring optical signal power;

the optical transmission distance acquisition module is used for acquiring optical signal transmission distance;

the optical power detection module is used for detecting the power of the collected optical signal;

the optical transmission distance detection module is used for detecting the transmission distance of the acquired optical signal;

the calculation module is used for calculating the optical signal power and the optical signal transmission distance;

the analysis integration module is used for analyzing the calculated optical signal power and the data of the optical signal transmission distance to compensate the noise amount;

the noise compensation module is used for compensating optical signal power and optical transmission distance phase noise;

the dispersion compensation fiber is used for compensating optical signal dispersion.

2. A system for compensating for noise in an optical communication system according to claim 1, wherein: the data feedback module comprises a data receiving unit, a data conversion unit, a data editing unit and a wireless transmission unit 1.

3. A system for compensating for noise in an optical communication system according to claim 2, wherein: the data receiving unit is used for receiving the data of the analysis integration module, the data conversion unit is used for converting the analog signals into electric signals, the data convenient and fast unit is used for converting the electric signals into text signals, and the wireless transmission unit 1 is used for wirelessly transmitting the text signals to an external terminal.

4. A system for compensating for noise in an optical communication system according to claim 2, wherein: the data convenient unit comprises a text unit, a chart unit and a calculation unit, the calculation unit calculates that data sent out in each time period are typeset through the chart unit, and meanwhile, the text unit is attached with characters and finally transmitted to an external terminal.

5. A system for compensating for noise in an optical communication system according to claim 1, wherein: the output recording module comprises an acquisition unit, a storage unit and a wireless transmission unit 2.

6. The system of claim 5, wherein the system further comprises: the data that collection unit gathered noise compensation module output are stored through the storage unit, and wireless transmission unit 2 sends the data that the storage unit stored to external terminal through LAN.

7. A compensation method of a compensation system of noise of an optical communication system according to claim 1, characterized in that: the method for compensating the noise of the optical communication system comprises the following specific processing steps:

s1: the signal acquisition module acquires an optical signal;

s2: the optical signal acquisition module and the optical transmission distance acquisition module respectively acquire the power and the transmission distance of an optical signal;

s3: the optical power detection module detects the optical power quantity acquired by the optical signal acquisition module, and the optical transmission distance detection module detects the optical signal transmission distance quantity acquired by the optical transmission distance acquisition module;

s4: the calculation module respectively calculates the values of the optical signal power and the optical signal transmission distance;

s5: the analysis integration module analyzes and calculates the noise value to be compensated according to the calculated optical signal power value and the calculated optical signal transmission distance value;

s6: the noise compensation module performs noise compensation according to the numerical value of the analysis and integration module, and the dispersion compensation optical fiber compensates the optical signal dispersion;

s7: the data receiving unit receives data transmitted by the analysis and integration module, the data conversion unit converts an analog signal into an electric signal, the data convenient unit converts the electric signal into a text signal, the wireless transmission unit 1 wirelessly transmits the text signal to an external terminal, and people can check a numerical value to be compensated through the external terminal;

s8: the acquisition unit acquires data output by the noise compensation module and stores the data through the storage unit, and the wireless transmission unit 2 transmits the data stored in the storage unit to an external terminal through a local area network;

s9: and comparing the data of the data receiving unit and the output recording module, wherein if the data of the data receiving unit and the data of the output recording module are completely matched, the noise compensation module completely compensates the required phase noise, and otherwise, the noise compensation module does not completely compensate the required phase noise.

Technical Field

The present invention relates to the field of noise compensation in optical communication, and in particular, to a method and system for compensating noise in an optical communication system.

Background

Optical communication is a communication mode using light waves as carriers, and there are two methods for increasing the bandwidth of an optical path: firstly, the single channel transmission rate of the optical fiber is improved; secondly, the number of wavelengths transmitted in a single optical fiber is increased, namely, the wavelength division multiplexing technology, the optical signal to noise ratio is defined as the ratio of the optical signal power to the noise power within the optical effective bandwidth of 0.1nm, and during optical communication, the optical communication can be completed only when the optical signal to noise ratio is within a proper range, but the noise is lost, so that noise compensation is needed.

Firstly, the missing values of the calculated optical power and the optical transmission distance cannot be transmitted into a computer, so that people cannot know the defects of the whole optical communication system and are inconvenient to improve; secondly, one cannot know the noise value of the compensation, so that one cannot determine whether the noise compensation is completely unfavorable for use.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: firstly, the calculated missing values of the optical power and the optical transmission distance cannot be transmitted into a computer, so that people cannot know the defects of the whole optical communication system, and the improvement is inconvenient; secondly, one cannot know the noise value of the compensation, so that one cannot determine whether the noise compensation is completely unfavorable for use.

The invention solves the technical problem through the following technical scheme, and provides a method and a system for compensating the noise of an optical communication system, which comprises a signal acquisition module, an optical power acquisition module, an optical transmission distance acquisition module, an optical power detection module, an optical transmission distance detection module, a calculation module, an analysis integration module, a data feedback module, a noise compensation module, a dispersion compensation optical fiber and an output recording module;