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|Type:||Artigo de periódico|
|Title:||Enhanced side-mode suppression in chaotic stadium microcavity lasers|
Von Zuben, AA
|Abstract:||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.|
|Editor:||Amer Inst Physics|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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