We have explored the possibility of generation and propagation of ultraslow bright optical temporal solitons in asymmetric three-coupled quantum well systems. These bright solitons owe their existence to Kerr and quintic nonlinearities which arise due to a probe pulse and two controlling laser beams. We also find numerically that these solitons are stable against weak perturbation.

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Nonlinear Optics cubic Quintic Nonlinearity Optical Solitons