Abstract

A pulsed chemical oxygen-iodine laser (COIL) using atomic iodine generated by volumetric discharge of CH<sub>3</sub>I is developed and tested. COIL with a gain length of 60 cm is energized by a square pipe-array jet singlet oxygen generator with basic hydrogen peroxide pumping circulations and operated at subsonic gas flow. Maximum output energy of 4.3 J, pulse duration of 50 μs, specific energy extraction from the active medium of 2.0 J/L, and the maximum chemical efficiency of 12.5% are achieved at a chlorine flow rate of 55 mmole/s.

© 2012 Chinese Optics Letters

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