Spontaneous decay rates in active waveguides

Abstract

We present a new method to measure the guided, radiated and total decay rates in one-dimensional waveguides. It is also theoretically shown that large modifications of the total decay rate can be achieved in realistic EDFAs and EDWAs with effective mode area radii smaller than ~ 1 micrometer.

3 pages, latex, 2 figures, 1 table, title change, published version