Referenced Items are not available for this document.
The thinning of cladding layers of GaAs-AlGaAs graded index separate confinement heterostructure single quantum-well (GRINSCH-SQW) lasers offers several advantages. These advantages include easier fabrication of surface grating-based lasers and ridge lasers, the reduction of growth time and source-material use, and the more effective removal of heat due to lower thermal resistance. Experimental results from GRINSCH-SQW lasers showing that typical cladding thicknesses of 1.5 to 2 μm are much thicker than necessary are presented. Lasers with cladding layers as thin as 4500 Å have not shown any increase in threshold current. Theoretical analysis shows good agreement with the experimental results on the minimum cladding thickness necessary to prevent an increase in the threshold current. The differential quantum efficiency is theoretically considered and is found to be more sensitive to cladding-layer thickness
Published in:
Quantum Electronics, IEEE Journal of
(Volume:26
,
Issue:
9
)
Date of Publication: Sep 1990
- Page(s):
- 1476 - 1480
- ISSN :
- 0018-9197
- INSPEC Accession Number:
- 3825716
- Digital Object Identifier :
- 10.1109/3.102624
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Sep 1990
- Sponsored by :
- IEEE Photonics Society
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