Title :
Feasibility study for degenerate two-photon gain in a semiconductor microcavity
Author :
Marti, Daniel H. ; Dupertuis, Marc-André ; Deveaud, Benoît
Author_Institution :
Ecole Polytechnique Fed. de Lausanne, Inst. de Photonique et d´´Electronique Quantique, Lausanne, Switzerland
Abstract :
We analyze the magnitude of degenerate two-photon gain of several quantum wells (QWs) in a resonant microcavity which is pumped off-resonantly by an optical field. A set of coupled phenomenological rate equations for electron-hole pairs and photons is derived. In the framework of this model, we make a realistic prediction of the time-integrated two-photon gain and find that a λ-cavity containing 11 QWs would give a maximal amplification of ∼2.3% for a peak intensity of ∼80 MW/cm2. A better insight into the dependence of the gain on the various physical parameters is given by an analytical formula resulting from various approximations on the rate equations.
Keywords :
laser theory; laser transitions; microcavity lasers; optical pumping; quantum well lasers; two-photon processes; degenerate two-photon gain; electron-hole pairs; off-resonantly pumped resonant microcavity; peak intensity; quantum wells; rate equations; semiconductor microcavity; time-integrated two-photon gain; Absorption; Equations; Laser theory; Laser transitions; Microcavities; Optical pumping; Optical saturation; Resonance; Semiconductor lasers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.816092