This article is cited in 1 paper

Lasers. Active media

Q-switched chemical HF laser

A. P. Vorob'ev, V. A. Iskhakov, V. I. Mashendzhinov, V. È. Revich, M. A. Rotinyan, M. A. Shur

Russian Research Centre "Applied Chemistry", St.-Peterburg

Abstract: A numerical simulation was made of pulse-periodic operation of an ultrasonic chemical HF laser with a Q-switched cavity. This simulation was based on a combination of mathematical models of cw and pulsed chemical lasers. Calculations were made specifically for an experimental HF chemical laser with a combustion chamber. It was found that pulse-periodic operation can ensure a 20—28-fold increase in the output power, compared with cw operation, at the expense of a reduction in the average radiation power by a factor less than 2. The energy per unit mass of the active medium increases with increase in the Q-switching frequency, reaching 60 kJ kg^–1 (which is half the value obtainable under cw conditions) at the switching frequency of 250 kHz.

PACS: 42.55.Ks, 42.60.Gd

Received: 25.02.1998

 English version: Quantum Electronics, 1998, 28:7, 589–593

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