Article ID Journal Published Year Pages File Type
1540948 Optics Communications 2008 4 Pages PDF
Abstract

While micro-ring lasers is a step forward for the miniaturization of fiber lasers, up-conversion quenching due to ion energy transfer may limit the device size and deteriorate system performance. The effect of Er3+ concentration quenching on the characteristics of silica-based Er-doped fiber (EDF) micro-ring laser was investigated. In particular, the dependence on Er3+ concentration and laser size of threshold pump power and quantum efficiency is discussed. To achieve high laser efficiency, it was found that ring diameter has to be ∼150 μm with ∼5 wt.% erbium concentration. The threshold value is increased by a factor of 340, for such laser characteristics compared with threshold power when up-conversion is not considered. Moreover, we show that detrimental effect due to up-conversion quenching can be reduced by careful micro-ring laser design.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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