Numerical solutions of the Liouville equation are used to study of the polarization characteristics of an ensemble of He atoms in 3 3 S 1 state in the presence of the strong magnetic field when the coherent population of this level is realized from 2 3 P state.

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By using the example of transfer between fine structure levels in the helium atom, the possibility of laser generation without inversion has been studied.

Using a numerical solution of the Liouville equation, the process of variation of polarization characteristics in an ensemble of He atoms in the 3 3 S 1 state is studied on coherent population of this level from the 2 3 P state by a finite-width line in the presence of a strong magnetic field.