10.07.2015   SonSolar

Description of the model PISPL

The authors have developed and produced the laboratory model of solar-pumped iodine laser. The tube-type high pressure xenon lamps are used to simulate solar light.

The radiation spectrum of these lamps measured in VNIIEF (see fig. 1) corresponds to the solar spectrum within absorption band of the active laser medium [1]. The model has the

closed cycle system (CCS) for its active medium. The concept of the model is presented in

Fig. 1. Radiation spectra of xenon lamp and of the Sun. The smoothed curve is corresponds to absorption spectrum of i-C3F7I.

Fig. 2. PDISPL concept.

1 — evaporator; 2,6 — valve; 3 — manometer; 4 — laser cell; 5 — input and output comb; 7 — cryogenic pump; 8 — carbon filter; 9 — the system for inlet and separation of operating substance; 10 — resonator mirrors.

fig 2.

The following parameters of CCS were obtained for the present model.:

1. Vacuum sealing of CCS is sufficient for laser experiments without the danger of the distorted by atmospheric gases, O2, H2O (~ 10-3- 10-2 mmHg within 5 min) results.

2. CCS provides for the stable stationary flux of the operating substance going through the laser cell. The flux velocity is 10 m/sec and lower. The pressure of the operational substance in the flux is smoothly regulated within 0 40 mmHg.

3. Duration of the active phase of the experiment is specified by the temperature filed of the model and presently does not exceed 2 min due to heating the laser cell walls up to ~ 2000C.