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Measured emission profiles at (gray lines) and (black lines) from stripe broad area lasers with and without -side patterning. The inset of (d) shows the pattern. (a) Near field (unpatterned sample). (b) Near field (patterned sample). (c) Spontaneous emission from substrate (unpatterned). (d) Spontaneous emission from substrate (patterned).
Theoretical optical intensity and average carrier density profiles for structures with optical profile defined by (a) two, (b) three, and (c) six transverse optical modes at a current of .
Normalized slope as function of overlap between optical mode and carrier density—experimental and theoretical.
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