Abstract

A stimulated-Raman-gain medium at 1.56-μm wavelength, consisting of molecular deuterium dissolved in low-loss silica optical fiber and pumped by 1.06-μm Nd:YAG laser light, is described. In a 100-m-long fiber with pump power of 130 W, InGaAsP injection-laser probe light at 1.56 μm was amplified by a factor of 4000 to an output power of 150 mW. The measured stimulated-Raman-gain coefficient at 1.56 μm is 7 × 10−2 cm/W, about equal to the Raman gain of SiO2 at the same wavelength.

© 1983 Optical Society of America

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