Title :
Self-consistent calculation of lasing modes in a planar microcavity
Author :
Lin, C.C. ; Deppe, D.G.
Author_Institution :
Microelectron. Res. Center, Texas Univ., Austin, TX, USA
fDate :
4/1/1995 12:00:00 AM
Abstract :
The self-consistent calculation of lasing modes in a microcavity with infinite plane mirrors is presented. The semiclassical theory is used, with rigorous boundary conditions included for Maxwell´s equations to describe both the emitter distribution and the cavity reflectors. The concept of gain-guided versus index-guided modes in such structures can be removed within the semiclassical model, as rigorous boundary conditions for both the radiation source and passive cavity can be handled exactly. We present calculated curves showing the angular dependence of various lasing modes on mirror reflectivity and the threshold gain susceptibility dependence on mirror reflectivity and active diameter. The linewidth dependence on the transverse lasing mode is also considered. Limitations of the semiclassical approach as compared to a fully quantum mechanical approach is emphasized
Keywords :
Maxwell equations; boundary-value problems; laser cavity resonators; laser mirrors; laser modes; laser theory; mirrors; reflectivity; spectral line breadth; Maxwell´s equations; active diameter; angular dependence; cavity reflectors; emitter distribution; fully quantum mechanical approach; gain-guided; index-guided modes; infinite plane mirrors; lasing modes; linewidth dependence; mirror reflectivity; passive cavity; planar microcavity; radiation source; rigorous boundary conditions; self-consistent calculation; semiclassical theory; threshold gain susceptibility dependence; transverse lasing mode; Boundary conditions; Laser modes; Laser theory; Laser transitions; Maxwell equations; Microcavities; Mirrors; Semiconductor laser arrays; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Lightwave Technology, Journal of
