High-power single-mode 1.3-μm lasers based on InAs/AlGaAs/GaAs quantum dot heterostructures
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- Livshits, D.A., Kovsh, A.R., Zhukov, A.E. et al. Tech. Phys. Lett. (2004) 30: 9. doi:10.1134/1.1646701
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Single-mode lasers operating in the 1.3 μ m wavelength range have been obtained with the active region based on InAs/AlGaAs/GaAs quantum dot heterostructures. A minimum threshold current of about 1.4 mA is reached, which is a record value for ridge waveguide lasers. The maximum efficiency and maximum output power in the cw lasing mode are 0.73 W/A and 120 mW, respectively.