Cavity Quantum Electrodynamics in Semiconductor Laser

Released on by Y. Yamamoto
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  • Cavity Quantum Electrodynamics in Semiconductor Laser Book Detail

  • Author : Y. Yamamoto
  • Release Date : 1992
  • Publisher :
  • Genre :
  • Pages : 4
  • ISBN 13 :
  • File Size : 59,59 MB
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Cavity Quantum Electrodynamics in Semiconductor Laser by Y. Yamamoto PDF Summary

Book Description: A one-dimension (planar) microcavity structure shown in can increase the coupling efficiency Beta of spontaneous emission into a single cavity resonant mode, if the spontaneous emission spectral width Aw. is smaller than the microcavity resonance width Awc and if the refractive-index difference An is fairy large. The loss of spontaneous emission into spurious modes, 1-Beta, are clue to the two (degenerate) orthogonal polarization modes and the leaky guided modes propagating in a plane of the microcavity. A three-dimensional (waveguide) microcavity structure shown in features several advantages over the one-dimensional structure. The increase in Beta is realized without requiring delta(omega sub e) delta(omega sub c) and large delta n. The degeneracy of the two orthogonal polarization mode's can 'be lifted and the leaky guided modes, can be made cut-off by the waveguide structure. Therefore, the spurious spontaneous emission into these modes can be suppressed. The spontaneous emission lifetime T, can be also decreased in the three-dimensional microcavity. On the other hand, the one-dimensional microcavity cannot decrease Tav sub delta but can only increase Tau sub delta.

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