Title :
The influence of temperature on the eigenmodes of a semiconductor laser
Author :
Bissessur, H. ; Ettinger, R.D. ; Fernandez, F.A. ; Davies, J.B.
Author_Institution :
Alcatel Alsthom Recherche, Marcoussis, France
fDate :
7/1/1993 12:00:00 AM
Abstract :
The influence of heating on the eigenmodes of a semiconductor laser is studied, using finite elements to solve for the transverse temperature distribution and the eigenmode, and assuming a first-order variation of the material index with temperature. Besides the expected increase of the effective index, a self-focusing effect leading to beam narrowing and an increase of the confinement factor (which can change by as much as 10%) is evidenced.<>
Keywords :
eigenvalues and eigenfunctions; finite element analysis; laser modes; laser theory; optical self-focusing; refractive index; semiconductor lasers; beam narrowing; confinement factor; effective index; eigenmodes; finite elements; first-order variation; heating; material index; self-focusing effect; semiconductor laser; transverse temperature distribution; Electrons; Finite element methods; Heating; Laser modes; Optical surface waves; Semiconductor lasers; Semiconductor materials; Surface emitting lasers; Temperature distribution; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
