Facet reflectivity and low-frequency noise in the light output of LED and superradiant diodes

Author

Fronen, R.J.

Author_Institution

Eindhoven Univ. of Technol., Netherlands

Volume

25

Issue

7

fYear

1989

fDate

7/1/1989 12:00:00 AM

Firstpage

1653

Lastpage

1658

Abstract

The influence of the reflection coefficient of cleaved facets from a double heterostructure laser on the l/f noise in light output is investigated. The experimental noise results are obtained by partially embedding the laser in Canada balsam, resulting in a decrease of the reflection coefficient, and by evaporating an aluminum coating, which results in a fully reflecting facet. These experimental results are shown to be in full agreement with an extension of existing models proposed by Fronen and Vandamme (l988). The 1/f noise arising from fluctuations in the refractive index is calculated, and it is concluded that this noise is negligible compared to the bulk noise in semiconductor lasers

Keywords

electron device noise; light emitting diodes; random noise; reflectivity; refractive index; semiconductor junction lasers; superradiance; Al; Canada balsam; LED; aluminum coating; bulk noise; cleaved facets; double heterostructure laser; facet reflectivity; l/f noise; light output; low-frequency noise; reflection coefficient; refractive index; semiconductor lasers; superradiant diodes; Acoustic reflection; Aluminum; Coatings; Fluctuations; Laser modes; Laser noise; Low-frequency noise; Optical reflection; Reflectivity; Semiconductor device noise;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.29307

Filename

29307