We have developed an efficient framework for analyzing the reflection and transmission properties of semiconductor photonic crystal optical amplifiers. Specifically, we have investigated the use of slow-light to enhance the gain of short integrated amplifiers. We find that the expected enhancement in transmission is limited by distributed feedback induced by the material gain itself. Such back-scattering is further enhanced by the refractive index variation associated with the linewidth enhancement factor. The inclusion of this effect reveals that for a given material gain, devices with smaller linewidth enhancement factor may offer better performance.
Theory of slow-light semiconductor optical amplifiers / Saldutti, Marco; Rasmussen, Thorsten; Gioannini, Mariangela; Mork, Jesper. - In: OPTICS LETTERS. - ISSN 0146-9592. - 45:21(2020).
|Titolo:||Theory of slow-light semiconductor optical amplifiers|
|Data di pubblicazione:||2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1364/OL.403446|
|Appare nelle tipologie:||1.1 Articolo in rivista|