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Optics Communications

Self-induced transparency effect on the two-soliton interaction

Caroline C. D. Silva, R.V. Moreira, Sabrinna Aires Garcia, D. P. Caetano

Published Sep 15, 2015• 2 citations
Publisher
DOI
10.1016/j.optcom.2015.08.036

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Self-induced transparency is analyzed for optical pulses interacting with a two-level system by solving an integrable system of evolution equations without using the slowly varying envelope approximation. A suitable modification of the inverse scattering method is developed to find soliton solutions. The characteristics of linearly and circularly polarized optical solitons (including those created in a laser) are compared. To assess the scope of the two-level model, the effects due to additional levels are analyzed in the adiabatic approximation. It is shown that these effects violate the integrability of the model and lead to loss of self-induced transparency for pulses with duration comparable to oscillation period. However, self-induced transparency is recovered in the quasi-monochromatic limit. Applications of the results are discussed.