考虑信息突发性脉冲的光通信传输控制系统

Burst dynamic IP information pulse transmission control system in optical fiber network

光通信容易出现突发性信息脉冲,为解决当前控制系统存在的控制稳定性较差问题,设计了一种突发性信息脉冲的光通信传输控制系统。设计系统整体主要包括电光转换模块和光电转换模块,模块间通过单模光相连。在电光转换模块中,突发性信息脉冲信号经间接耦合电路处理后,驱动激光器,将脉冲信号转换成光信号,通过设计的自动功率控制电路、自动温度控制电路保证激光器的稳定运行。在光电转换模块中,利用光线将光信号发送至光电探测器,完成光电转换,并进行相应处理。数据包经同步数字体系或光通信协议转换成帧后,利用相应协议映射至底层光波长上,在波长数量出现动态改变的情况下,光通信中的FWM效应也会出现相应变化,通过控制FWM总功率实现对光通信突发性信息脉冲传输的控制。实验结果表明,所设计系统控制稳定性高。

Fiber optic network is prone to burst dynamic IP information pulse.In order to solve the problem of poor stability of pulse transmission control in traditional control system,a new burst dynamic IP information pulse transmis-sion control system in fiber optic network is designed.The whole design system mainly includes electro-optic conver-sion module and photoelectric conversion module,which are connected by single-mode optical fibers.In the electro-optic conversion module,the burst dynamic IP information pulse signal is processed by an indirect coupling circuit,which drives the laser,converts the pulse signal into optical signal,and ensures the stable operation of the laser through the designed automatic power control circuit and automatic temperature control circuit.In the photoelectric conversion module,light is used to send the optical signal to the photoelectric detector,complete the photoelectric conversion,and process it accordingly.After IP data packets are converted into frames by synchronous digital architecture or optical fi-ber network protocol,the corresponding protocols are mapped to the underlying optical fiber wavelength.When the number of wavelength changes dynamically,the FWM effect in optical fiber network will change accordingly.The burst dynamic IP information pulse transmission in optical fiber network can be controlled by controlling the total power of FWM.The experimental results show that the designed system has high control stability.