Pulsed iodine lasers are useful devices; today most are very large alkyl iodide gas lasers pumped by fast delicate flashlamps.1 This paper discusses the characteristics of a small reliable long-pulse gas iodine laser oscillator which is photolytically pumped. A smooth Gaussianlike temporal pulse can be produced with up to 0.25 mJ in a 250-μsec pulse. The prototype will be used as a probe for a chemically pumped iodine laser, but because it operates in the near IR at 1.3 μm it is well suited for fiber-optic applications.

© 1984 Optical Society of America

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