Improved performance of AR-coated DFB lasers for the introduction of gain coupling

Author

Morthier, G. ; Vankwikelberge, P. ; David, K. ; Baets, R.

Author_Institution

Lab. of Electromagn. & Acoust., Univ. of Gent-IMEC, Belgium

Volume

2

Issue

3

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

170

Lastpage

172

Abstract

Antireflection (AR)-coated distributed-feedback (DFB) lasers with both gain- and index-coupled distributed feedback are studied numerically with respect to mode losses, mode suppression, and spatial hole burning. The mode losses and the spatial hole burning decrease with increasing gain coupling, while the mode suppression increases. It is shown that a large improvement in performance can already be obtained for small fractions of gain coupling.<>

Keywords

antireflection coatings; distributed feedback lasers; optical hole burning; optical losses; refractive index; semiconductor junction lasers; DFB laser performance; DFB lasers; antireflection coated DFB lasers; distributed feedback lasers; gain coupling; gain-coupled distributed feedback; index-coupled distributed feedback; mode losses; mode suppression; spatial hole burning; Bragg gratings; Communication systems; Distributed feedback devices; Laser feedback; Laser modes; Laser theory; Optical coupling; Partial differential equations; Performance gain; Power lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.50879

Filename

50879