Title :
Above-threshold analysis of second-order circular-grating DFB lasers
Author :
Shams-Zadeh-Amiri, Ali M. ; Li, Xun ; Wei-Ping Huan
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
3/1/2000 12:00:00 AM
Abstract :
The behavior of second-order circular-grating DFB lasers in the above-threshold regime are analyzed. The formulation uses the standing wave method for treating lasers with second-order gratings. The effects of spontaneous emission and the variation of carrier and photon densities in the radial direction are included in a self-consistent fashion in the model. In particular, we examine the output power emitted from the surface of the laser, the near-field, and the far-field pattern of the laser as a function of the injected current.
Keywords :
diffraction gratings; distributed feedback lasers; laser theory; semiconductor device models; spontaneous emission; surface emitting lasers; above-threshold analysis; above-threshold regime; carrier densities; diode laser models; far-field pattern; injected current; near-field pattern; output power; photon densities; radial direction; second-order circular-grating DFB lasers; second-order gratings; self-consistent fashion; spontaneous emission; standing wave method; surface emitting lasers; Distributed Bragg reflectors; Gratings; Laser modes; Laser theory; Optical coupling; Optical surface waves; Power generation; Pump lasers; Surface emitting lasers; Surface treatment;
Journal_Title :
Quantum Electronics, IEEE Journal of
