Algorithm for determining the form factor of a gas laser in the advanced generation mode
This scientific article is devoted to the determination of the form factor of a gas laser by the calculation method. The result of the work is a typical algorithm for determining the equation of the spectral line of laser radiation for the developed generation mode with the given example of solving the problem of determining the form factor of a gas laser on the example of a helium-neon laser. The algorithm given in the article can be used as the basis for methods for determining the spectral density of laser radiation by the calculation method when designing gas lasers. The article shows that for a gas laser in the advanced generation mode, when the number of photons in the resonator mode is sufficiently large, and the amplitude and phase fluctuations are independent, while the phase changes are random and have a normal distribution, the equation of the envelope of the radiation spectrum is the result of a direct Fourier transform of the two-dimensional correlation function of the signal component of radiation, the amplitude of which is determined by the total amplitude of photons in the resonator mode. Development of an effective, discrete, definite and mass algorithm for determining the explicit form of a function that is a mathematical model of the laser radiation spectrum on the example of a gas laser. Methodology: the paper used a computational method for determining the form factor of a gas laser on the example of a conventional helium-neon laser. Results: a productive, discrete, definite and mass algorithm for determining the spectral density of gas laser radiation is synthesized and an example is given that proves the efficiency of the proposed algorithm. Practical implication can be used as the basis for promising methods for determining the spectral density of laser radiation by the calculated method when designing gas lasers.