Fuzzy PID temperature control system for DFB laser based on adaptive genetic algorithm
MA Xiao-yu
Abstract：Aiming at the problem that the traditional PID control algorithm is difficult to accurately control the temperature of DFB laser, a new DFB laser temperature control system based on fuzzy PID control and adaptive genetic algorithm was proposed and designed.The control system consisted of hardware and software.For the aspect of the hardware device, the micro controller unit (MCU) was used as the processor of control system, while the platinum resistance and thermo electric cooler (TEC) were taken as the sensor and actuator of control system, respectively.For the aspect of control algorithm, the adaptive genetic algorithm was used to optimize the fuzzy PID self tuning rule.The results show that the proposed system can achieve the effective control of DFB laser in the temperature range from 5℃ to 65℃.The control error and overshoot are lower than 0.0023℃ and 10％, respectively.Hence, the proposed system has a wide application foreground.
Keywords：DFB laserfuzzy PID controladaptive genetic algorithmtemperature controlself tuningoptimizationnonlinearitylatency
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 454-458 )