The work was supported by the National Basic Research Program of China (Grant No. 2006CB604904) and the National Natural Science Foundation of China (Grant Nos. 61274072, 60976057, 60876086 and 60776037).
Currently, the nature of self-assembly of three-dimensional epitaxial islands or quantum dots (QDs) in a lattice-mismatched heteroepitaxial growth system, such as InAs/GaAs(001) and Ge/Si(001) as fabricated by m...
Project supported by the National Basic Research Program of China (Grant No. 2006CB604904);the National Natural Science Foundation of China (Grant Nos. 60976057, 61274072, and 60876086)
With a chirped InAs/GaAs SML-QD (quantum dot) structure serving as the active region, the superluminescent diodes emitting at wavelength of around 970nm are fabricated. By using an active multimode interferometer co...
Project supported by the National Basic Research Program of China (Grant No. 2006CB604904);the National Natural Science Foundation of China (Grant Nos. 60976057,61274072,and 60776037)
We report the effect of the GaAs spacer layer thickness on the photoluminescence (PL) spectral bandwidth of InAs/GaAs self-assembled quantum dots (QDs). A PL spectral bandwidth of 158 nm is achieved with a five-la...
supported by the National Basic Research Program of China (Grant No.2006CB604904);the National Natural Science Foundation of China (Grant Nos.60876086,60976057,and 60776037)
According to the InAs/GaAs submonolayer quantum dot active region, we demonstrate a bent-waveguide superluminescent diode emitting at a wavelength of around 970 nm. At a pulsed injection current of 0.5 A, the device e...
supported by the National Basic Research Program of China (Grant No. 2006CB604904);the National Natural Science Foundation of China (Grant Nos. 60876086, 60976057, and 60776037)
This paper reports the fabrication of J-shaped bent-waveguide superluminescent diodes utilizing an InAl- GaAs/AlGaAs quantum dot active region. The emission spectrum of the device is centred at 884 nm with a full widt...
Project supported by the National Key Basic Research and Development Program of China (Grant No. 2006CB604904);the National Natural Science Foundation of China (Grant Nos. 60976057, 60876086, 60776037, and 10775106)
A broadband tunable grating-coupled external cavity laser is realized by employing a self-assembled InAs/GaAs quantum-dot (QD) superluminescent diode (SLD) as the gain device. The SLD device is processed with a be...