Design and physical features of inductive coaxial copper vapor lasers

Dependence of induction copper vapor laser radiation on the parameters of RF discharge and the optical cavity

“…Induction pumping can be demonstrated using ICVL prototypes with small-volume discharge chambers (r 2 = 0.5-1 cm, V pl = 100-200 cm 3 , W j ~ 1 kW). However, as a previous analysis [2,3] showed, high coupling coefficients (K r ~ 0.4-0.6) are achieved in the ICVLs with ring discharge chambers of large diameters and large volumes (see table 1). For an ICVL of this scale, both the development of discharge chambers and the development of a high-power (W j ~ 5-7 kW) pump source with special parameters (dJ 2 /dt > ∼ 10 10 -10 11 A s −1 ) are required.…”

“…In recent years, by using numerical methods, we substantiated the possibility of creating an electrodeless construction of a copper vapor laser (CVL) excited by a new method, namely, by a pulse-periodic induction discharge [1][2][3][4] aimed to significantly improve the operation characteristics. It was assumed that the absence of electrodes would simplify the construction, make the sealed-off active elements of this laser cheaper, and, to a certain degree, make their service period longer.…”

“…A physical model of an ICVL was thoroughly described in our works [1][2][3][4][5][6][7][8]. In addition to the equations describing the dynamics of non-equilibrium plasma parameters, it comprises the equations for the intensity evolution of induced laser radiation (spectral density) inside a cavity.…”