Abstract

A liquid core optical fiber (LCOF) composed of hollow fiber and a solution of Eu(TTA)3Phen (TTA=2-thenoyltrifluoroacetone, Phen=1, 10-phenanthroline) in dimethyl sulfoxide (DMSO) has been fabricated, in which the concentration of Eu(TTA)3Phen in DMSO is 0.8  wt.%, the core diameter of the LCOF is 10μm, and the fiber length is 8.1cm. By the end pumping with a diode-pumped solid-state laser at 355nm, a small optical signal at 613nm was amplified with a gain of 8.2dB at a pump power of 203mW. Based on this experimental result, a liquid core optical fiber amplifier can be realized by the LCOF, which has wide potential applications in many optical devices.

© 2011 Optical Society of America

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