Highly strained InGaAs QW VCSEL with lasing wavelength at 1.22 /spl mu/m

Vertical cavity surface emitting lasers with a highly strained InGaAs quantum well are demonstrated. Room temperature continuous wave operation was achieved, with a lasing wavelength at 1.22 µm. A high slope efficiency of 0.63 W/A and a maximum power around 1 mW were achieved.