Abstract
1.3 µm Ga0.49In0.51As0.7P0.3 –1.15% tensile strained single quantum well (SQW) lasers are successfully fabricated. The lowest threshold current for a 200 µm-long, 20 µm-wide ridge waveguide laser with high reflectivity coating is as low as 6 mA, corresponding to a very low threshold current density of 150 A/cm2.
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