Title :
Spontaneous emission factor in post microcavity lasers
Author :
Ram, R.J. ; Goobar, E. ; Peters, M.G. ; Coldren, L.A. ; Bowers, J.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
The first measurements of the spontaneous emission coupling efficiency (/spl beta/) for electrically pumped microcavity lasers with transverse photon confinement are reported. The influence of scattering losses and carrier diffusion on microcavity lasers is investigated, A /spl beta/ of 0.01 is measured at 126 K in a 3-μm diameter device with optimal gain-cavity detuning.
Keywords :
laser cavity resonators; laser tuning; light scattering; optical losses; spontaneous emission; surface emitting lasers; 126 K; 3 mum; carrier diffusion; electrically pumped microcavity lasers; optimal gain-cavity detuning; post microcavity lasers; scattering losses; spontaneous emission coupling efficiency; spontaneous emission factor; transverse photon confinement; Carrier confinement; Electric variables measurement; Electromagnetic scattering; Gain measurement; Laser excitation; Microcavities; Optical coupling; Particle scattering; Pump lasers; Spontaneous emission;
Journal_Title :
Photonics Technology Letters, IEEE
