Artículos de revistas
Enhanced side-mode suppression in chaotic stadium microcavity lasers
Registro en:
Journal Of Applied Physics. Amer Inst Physics, v. 105, n. 6, 2009.
0021-8979
WOS:000264774000045
10.1063/1.3082479
Autor
Mestanza, SNM
Von Zuben, AA
Frateschi, NC
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We report an enhanced side-mode suppression in Bunimovich stadium lasers with strained InGaAs/InGaP quantum well (QW) active regions. This is realized with spatially selective carrier injection along a particular periodic orbit of the stadium. The selectivity is achieved using He(+3) ion implantation. Up to 21 dB enhancement in side-mode suppression is observed for a 40x20 mu m(2) stadium with interband transition between the first excited quantum well level. The improvement in side-mode suppression is apparently a consequence of coherent beating between orbits leading to a Vernier effect. A simple model corroborate with this hypothesis. 105 6 Centro de Pesquisa em Optica e Fotonica (CePOF) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)