Amplitude-frequency conversion of semiconductor laser microwave modulation

Nonlinear impedance is very important parameter for self-sustained oscillation system. When analyzing the coefficient that multiplied by first derivative of the laser modulation system it is possible to get information about the non-linear laser diode impedance. But information about nonlinear laser diode parameters could be in the regenerative force. It means it is very important to analyze the nonlinear effects for this oscillation system. In this paper, Duffing´s equation were found and analyzed. There is Duffing´s equation in the main laser diode nonlinear differential equation. It means nonlinear effects are very complex and chaos is possible in this oscillation system.