Modal behaviour of weak index guided stripes in low confinement laser diodes

Author

Buda, Manuela ; Diaconescu, Dorina ; Iordache, Gheorghe ; Cengher, Dorin

Author_Institution

Eindhoven Univ. of Technol., Netherlands

Volume

2

fYear

1997

fDate

7-11 Oct 1997

Firstpage

493

Abstract

This paper presents the optical field behaviour of relatively large stripes, long laser diodes. The devices were designed to operate in the fundamental lateral mode. The stripe width, of order of 16 μm, involves a very low refractive index step at the ridge edges and the operation of the diode in the weak index guided regime. This index profile and subsequently, the optical field distribution is very easily disturbed by carrier injection or by temperature. The paper aims to characterise the influence of direct current intensity on lateral far field

Keywords

laser modes; refractive index; semiconductor lasers; carrier injection; direct current intensity; fundamental lateral mode; lateral far field; low confinement laser diodes; modal behaviour; optical field behaviour; optical field distribution; ridge edges; stripe width; very low refractive index step; weak index guided regime; weak index guided stripes; Diode lasers; Etching; Optical attenuators; Optical design; Optical pulses; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Threshold current;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 1997. CAS '97 Proceedings., 1997 International

Conference_Location

Sinaia

Print_ISBN

0-7803-3804-9

Type

conf

DOI

10.1109/SMICND.1997.651268

Filename

651268