High Quality Content by WIKIPEDIA articles! In physics, the Toda oscillator is special kind of nonlinear oscillator; it is vulgarization of the Toda field theory, which is a continuous limit of Toda`s chain, of chain of particles, with exponential potential of interaction between neighbors. These concepts are named afterMorikazu Toda. The Toda oscillator is used as simple model to understand the phenomenon of self-pulsation, which is quasi-periodic pulsation of the output intensity of a solid-state laser in the transient regime.