1.4 kW lasing of COIL with 5-cm gain length and nitrogen dilution

Marsel V. Zagidullin; Valeri D. Nikolaev

doi:10.1117/12.384266

4 May 2000 1.4 kW lasing of COIL with 5-cm gain length and nitrogen dilution

Marsel V. Zagidullin, Valeri D. Nikolaev

Proceedings Volume 3931, Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications; (2000) https://doi.org/10.1117/12.384266
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

The developed supersonic COIL with 5 cm gain length was driven by Verti Jet SOG having 0.28 liter of working volume. The oxygen was diluted by the primary nitrogen downstream from the JSOG. Two types of nozzles were tested: single throat nozzle with 10 mm throat height and double throat height 15 mm. The COIL with single throat nozzle operated at the primary nitrogen dilution O₂:N₂ equals 1:1 and the chlorine flow rate less than 40 mmole/s to maintain the designed gas flow conditions in the reactor of JSOG. The maximum power 765 W has been achieved at 39 mmole/s of the chlorine molar flow rate. The using of double throat nozzle allowed to increase chlorine moral flow rate up to 75 mmole/s. In this case the maximum power 1.4 kW has been reached for primary nitrogen ratio O₂:N₂ equals 1:1.28. The specific performance so f 5 kW per 1 liter of the reactor volume, of 100 W/cm² per unit of the stream cross section are in the cavity and of 2,7W of the pump capacity were obtained.

Citation Download Citation

Marsel V. Zagidullin and Valeri D. Nikolaev "1.4 kW lasing of COIL with 5-cm gain length and nitrogen dilution", Proc. SPIE 3931, Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications, (4 May 2000); https://doi.org/10.1117/12.384266

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