Title :
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
fDate :
3/1/1990 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
