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Injection lasers based on AlGaAsSb/GaSb and InGaAsSb/GaSb heterostructures
The operational and emission characteristics of injection lasers based on nonperiodic heterostructures are investigated. A study of the temperature dependence of threshold currents suggests that carrier leakage does not affect the heterolaser threshold currents up to room temperature; however, consi...
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Published in: | Journal of Soviet Laser Research 1984-05, Vol.5 (3), p.349-362 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The operational and emission characteristics of injection lasers based on nonperiodic heterostructures are investigated. A study of the temperature dependence of threshold currents suggests that carrier leakage does not affect the heterolaser threshold currents up to room temperature; however, considerable variations in threshold current values were observed for structures grown from different heteroepitaxial plates. In a InGaAsSb/GaSb laser an 'antiwaveguide' phenomenon was observed, where an increasing carrier density caused the narrowing of the directivity pattern of the laser emission in the plane perpendicular to the p-n junction; the phenomenon is suggested to be useful in some lasing modes, such as nonwaveguide diode modes and the transfer of radiation to a waveguide based on a wider-band material with a larger index of refraction. |
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ISSN: | 0270-2010 1573-8760 |
DOI: | 10.1007/BF01120625 |