Title :
Transverse modes in active cylindrical waveguides with step-index profiles
Author :
Varangis, Petros ; Du Crest, Gilles ; Osinski, Marek
Author_Institution :
Center for High Technol. Mater., New Mexico Univ., Albuquerque, NM, USA
Abstract :
Properties of guided modes in active cylindrical waveguides are of considerable interest for many applications, most recently vertical-cavity surface-emitting semiconductor lasers (VCSELs). In this paper, we investigate transverse modes in active step-index cylindrical waveguides by solving the wave equation exactly, and determine the limits of applicability of the approximate solutions. In order to facilitate identification of various transverse modes, the eigenvalue equation for step-index cylindrical waveguides is transformed into separate equations for TE, TM, EH, and HE modes, without invoking any approximation
Keywords :
approximation theory; circular waveguides; eigenvalues and eigenfunctions; laser cavity resonators; laser modes; laser theory; optical waveguide theory; refractive index; semiconductor lasers; surface emitting lasers; waveguide lasers; active cylindrical waveguides; active step-index cylindrical waveguides; approximate solutions; eigenvalue equation; guided modes; step-index cylindrical waveguides; step-index profiles; transverse modes; vertical-cavity surface-emitting semiconductor lasers; wave equation; Eigenvalues and eigenfunctions; Laser modes; Partial differential equations; Semiconductor lasers; Semiconductor waveguides; Surface emitting lasers; Surface waves; Tellurium; Vertical cavity surface emitting lasers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1993. LEOS '93 Conference Proceedings. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-1263-5
DOI :
10.1109/LEOS.1993.379084
