Losses of the unstable cavity in tapered laser diodes: estimation from numerical simulations

Author

Odriozola, H. ; Borruel, L. ; Tijero, J.M.G. ; Esquivias, I. ; Sujecki, S. ; Larkins, E.C.

Author_Institution

ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain

fYear

2005

fDate

19-22 Sept. 2005

Firstpage

31

Lastpage

32

Abstract

The excess of losses in tapered diode lasers due to the unstable cavity design is analyzed. These losses are estimated from simulations performed with a quasi-3D laser model in 975 nm index and gain guided tapered laser with different geometries. The results show taper losses ranging between 0.5 and 10 cm^-1, a clear increase of the losses with the taper angle, and higher losses for gain guided than for index guided devices with identical dimensions.

Keywords

laser beams; laser cavity resonators; numerical analysis; optical losses; optoelectronic devices; semiconductor lasers; gain guided devices; gain guided tapered laser; index guided devices; index guided tapered laser; laser geometry; laser losses estimation; numerical simulation; quasi3D laser model; taper losses; tapered laser diodes; unstable cavity design; Diode lasers; Fiber lasers; Geometrical optics; Laser beams; Laser modes; Numerical simulation; Optical design; Optical losses; Optical resonators; Solid modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Numerical Simulation of Optoelectronic Devices, 2005. NUSOD '05. Proceedings of the 5th International Conference on

Print_ISBN

0-7803-9149-7

Type

conf

DOI

10.1109/NUSOD.2005.1518120

Filename

1518120