Direct measurement of linewidth enhancement factors in quantum well lasers of different quantum well barrier heights
Zhao, B. ; Chen, T. R. ; Wu, S. ; Zhuang, Y. H. ; Yamada, Y. ; Yariv, A.
Woodbury, NY : American Institute of Physics (AIP)
Published 1993
Woodbury, NY : American Institute of Physics (AIP)
Published 1993
| ISSN: |
1077-3118
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
The wavelength dependence of the linewidth enhancement factor (amplitude-phase coupling factor) α in quantum well lasers of different quantum well barrier heights have been determined from the spontaneous emission spectra and the Fabry–Perot mode wavelength shifts. It is found that the α parameter at lasing wavelength in GaAs/Al0.15Ga0.85As lasers is about twice as large as that in GaAs/Al0.30Ga0.70As lasers. The observation is consistent with the previously observed spectral linewidth behavior in these lasers, which were attributed to the different state filling effects.
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| Type of Medium: |
Electronic Resource
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| URL: |