Demonstration of 1.51μm inas/inp(3 1 1)B quantum dot single-mode laser operating under continuous wave
2007
The achievement of a 1.51 mum InAs/InP(3 11)B quantum dot (QD) single-mode Fabry-Perot laser operating under continuous wave at room temperature is reported. A threshold current of 80 mA associated with a 0.12 W/A external efficiency is reported for as-cleaved device at room temperature. The maximum output power, the gain peak wavelength at threshold and the full width at half maximum of the spectral gain are 5 mW, 1512 nm and 60 nm, respectively. Although these performances must be improved in the future, these results constitute to our knowledge the state-of-the-art on InP(3 1 1)B substrate. These results are of great interest since QD-based lasers are expected to play a major role in the next generation telecommunication networks as low-cost devices.
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