We present a new method of measuring the guided, radiated, and total decay rates in uniform waveguides. It is also shown theoretically that large modifications of the total decay rate can be achieved in realistic erbium-doped fiber amplifiers and erbium-doped waveguide amplifiers with effective mode area radii smaller than approximately 1 µm.
© 2005 Optical Society of America
Andrés Anibal Rieznik and Gustavo Rigolin, "Spontaneous decay rates in active waveguides," Opt. Lett. 30, 1108-1110 (2005)