Improving beam quality in broad area semiconductor amplifiers

Author

Herrero, R. ; Kumar, Sudhakar ; Radziunas, Mindaugas ; Botey, M. ; Staliunas, K.

Author_Institution

Dept. de Fis. i Eng. Nucl., Univ. Politec. de Catalunya, Terrassa, Spain

fYear

2014

fDate

6-10 July 2014

Firstpage

1

Lastpage

3

Abstract

The spatial modulation of pump in broad emission area semiconductor amplifiers has two important advantages in this kind of devices. A 2-dimensional periodic modulation of the pump profile introduces by one side, a filtering effect and an improvement of the beam quality. Moreover, the spatial modulation changes the effective diffraction inside the material and reduces the modulation instability generated by the self-focusing effects and the material nonlinearity.

Keywords

laser beams; laser stability; light diffraction; optical modulation; optical pumping; optical self-focusing; semiconductor optical amplifiers; 2-dimensional periodic modulation; beam quality; broad area semiconductor amplifiers; filtering effect; material nonlinearity; modulation instability; pump profile; self-focusing effects; spatial modulation; Filtering; Laser beams; Laser excitation; Mathematical model; Modulation; Q-factor; Semiconductor device modeling; broad emission area semiconductor laser; gain-loss modulation; photonic crystals;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2014 16th International Conference on

Conference_Location

Graz

Type

conf

DOI

10.1109/ICTON.2014.6876275

Filename

6876275