GaInNAs-GaAs long-wavelength vertical-cavity surface-emitting laserdiodes |
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Authors: | Larson MC Kondow M Kitatani T Nakahara K Tamura K Inoue H Uomi K |
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Affiliation: | Central Res. Lab., Hitachi Ltd., Tokyo; |
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Abstract: | Vertical-cavity surface-emitting laser diodes with GaInNAs-GaAs quantum-well (QW) active layers are demonstrated for the first time. GaInNAs permits the realization of a long-wavelength vertical-cavity laser grown directly on a GaAs substrate. Room-temperature (RT) pulsed operation is achieved, with an active wavelength near 1.18 μm, threshold current density of 3.1 kA/cm2, slope efficiency of ~0.04 W/A, and output power above 5 mW for 45-μm-diameter devices. Laser oscillation is observed for temperatures at high as 95°C |
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