基于光场调控的光纤通信传输方法

Optical fiber communication and transmission method based on optical field control

为提高光纤通信传输质量,提出基于光场调控的光纤通信传输方法,先通过光场相位调制和复振幅调制,调整目标光场的相位,并获取目标光场相位差;再采用光场相位差定义光纤通信传输信号延时分布,根据数字采样获取相位差时间量,计算得到电压信号额定相位偏移,根据该偏移结果相位补偿电压前端,获取光纤通信传输信号绝对传输延时,根据绝对传输延时相异或编码时钟信号和NRZ码,设计编码器或解码器用于获取光纤通信传输时电路跳变信息,依据该信息得到光纤通信传输时机载接收端的接收状态,再结合载体端的发送状态,构建光纤通信的双向传输机制,实现光纤通信的双向传输。实验测试结果表明,光场调控后光纤通信传输内容损伤率和传输延时均低于未光场调控,且光场调控后光纤通信距离增加。

In order to improve the quality of optical fiber communication and transmission,an optical fiber communication and transmission method based on optical field regulation is proposed.Firstly,the phase of target optical field is adjusted through phase modulation and complex amplitude modulation,and the phase difference of target optical field is obtained.The optical fiber communication transmission to be defined using optical field phase difference signal delay distribution.According to digital sampling amount for phase difference time,rated voltage signal phase shift is calculated.According to the result of offset phase compensation voltage front end to obtain the optical fiber communication transmission signal transmission delay.According to the absolute transmission delay difference or code clock signal and NRZ code,design the encoder or the decoder for optical fiber communication transmission circuit jump informa-tion.According to the information to obtain the receiving state of carrier receiving end during the optical fiber communication transmission.Coupled with the delivery status of carrier,to build a two-way transmission mechanism of optical fiber communication,which realize the two-way transmission of optical fiber communication.Experimental results show that the damage rate and transmission delay of optical fiber communication are lower than that of non-optical field,and the distance of optical fiber communication increases after the regulation of optical field.