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Large signal three-level superfluorescent fiber sources
Large signal three-level superfluorescent fiber sources
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机译:大信号三级超荧光纤维光源
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摘要
There is disclosed a new superfluorescent source comprising a long fiber doped with a lasing material presenting three-level transitions, such as Erbium. Due to the ground state signal absorption present in three-level systems, the source of the present invention can achieve backward signal quantum efficiencies well in excess of the limit of 0.5 exhibited by four-level systems. The source can be used in a Sagnac interferometer which may comprise an optical isolator because of possible high feedback.
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