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Waveguiding, spectral, and threshold properties of a stripe geometry single quantum well laser

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5 Author(s)
Prince, F. ; Universidade Estadual de Campinas, Instituto de Física "Gleb Wataghin," Campinas, Brazil ; Mattos, T.J.S. ; Patel, N. ; Kasemset, Dumrong
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In this paper we report and analyze some interesting properties observed for gain-guided GB-SQW lasers. For narrow stripe widths ( \leq10 \mu m) and thin active layers (≤150 Å) we observe a long delay time for lasing and abnormal increase in threshold current density. To explain this behavior we developed a model of waveguiding that takes into account the effect of heat profile generated along the junction plane due to carrier injection, and good agreement with experimental results is obtained.

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Quantum Electronics, IEEE Journal of  (Volume:21 ,  Issue: 6 )