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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 6, Iss. 6 — Jun. 10, 2008
  • pp: 411–414

Enhanced spontaneous emission factor for microcavity lasers

Xiaoxia Zhang and Wei Pan  »View Author Affiliations

Chinese Optics Letters, Vol. 6, Issue 6, pp. 411-414 (2008)

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The microcavity and the influence of nonradiative recombination can control spontaneous emission. An analytic resolution of rate equation is studied for microcavity lasers. The relationship between output properties and structural parameters of multi-quantum wells (MQWs) is obtained. One of the most important consequences of the increased spontaneous emission factor is the reduction of laser threshold. It is found that the characteristic curve of a "thresholdless" laser is strongly nonradiative depopulation-dependent. The light output is increased by the enhanced well number and the reduced width. In particular, there is an optimal well number corresponding to the lowest threshold current density for MQW structure in the microcavity lasers.

© 2008 Chinese Optics Letters

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3430) Lasers and laser optics : Laser theory
(140.5960) Lasers and laser optics : Semiconductor lasers

Xiaoxia Zhang and Wei Pan, "Enhanced spontaneous emission factor for microcavity lasers," Chin. Opt. Lett. 6, 411-414 (2008)

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