supported by National Natural Science Foundation of China (Grant No. 61674032);National Basic Research Program of China (973) (Grant No. 2011AA010301);GF SiGe BiCMOS technology
Compared with conventional electrical interconnection technology,optical interconnection has the merits of anti-interference,small signal loss,long transmission distance and so on.Furthermore,parallel optical intercon...
supported by the National Natural Science Foundation of China(Nos.61334005,51272008,and51102003);the National Basic Research Program of China(No.2012CB619304)
Measurements of the excitation power-dependence and temperature-dependence photoluminescence(PL) are performed to investigate the emission mechanisms of In Ga N/Ga N quantum wells(QWs) in laser diode structures. T...
Project supported by the National Basic Research Program of China(Grant No.2012CB619304);the National Natural Science Foundation of China(Grant Nos.61076013 and 51272008);the Beijing Municipal Science and Technology Project,China(Grant No.H030430020000)
The electroluminescence (EL) and photoluminescence (PL) spectra of InGaN/GaN multiple quantum wells (MQWs) with a prestrained InGaN interlayer in a laser diode structure are investigated. When the injection curr...
Project supported by the National Natural Science Foundation of China (Grant Nos. 60976045,60506001,60836003 and 60776047);the National Basic Research Program of China (Grant No. 2007CB936700);the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 60925017)
This paper reports that a long delay between the beginning of pumping current pulse and the onset of optical pulse is observed in InGaN laser diodes. The delay time decreases as the pumping current increases, and the ...
Project supported by the National Natural Science Foundation of China (Grant Nos 60506001,60776047,60476021,60576003 and 60836003);the National Basic Research Programme of China (Grant No 2007CB936700)
A violet laser diode (LD) structure is grown on a free-standing c-plane GaN substrate and 4 μm×800μm ridge waveguide LDs are fabricated. The electrical and the optical characteristics of LDs under different facet...
Supported by the National Basic Research Program of China under Grant No 2004CB619006, and the National Natural Science Foundation of China under Grant No 50590404.
A high-efficiency high-power Nd:YAG laser under 885 nm laser diode (LD) pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized....
Project supported by the Wang Faculty Fellowship at Peking University,Beijing,China,2006-2007 through California State University (CSU) International Programs USA;the National Basic Research Program of China (Grant No 2007CB307004);the National High Technology Research and Development Program of China (Grant No 2006AA03A113);the National Natural Science Foundation of China (Grant Nos 60276034,60577030 and 60607003)
We have investigated the transverse mode pattern and the optical field confinement factor of gallium nitride (GaN) laser diodes (LDs) theoretically. For the particular LD structure, composed of approximate 4 μm t...
Supported by the National Natural Science Foundation of China under Grant Nos 60506001, 60476021 and 60576003, and the National Basic Research Programme of China under Grant No 2007CB936700.
Room-temperature operation of cw GaN based multi-quantum-well laser diodes (LDs) is demonstrated. The LD structure is grown on a sapphire (0001) substrate by metalorganic chemical vapour deposition. A 2.5μm × 80...
The growth of multi-layer InGaAs/InAs/GaAs self-assembled quantum dots (QDs) by molecular beam epitaxy (MBE) is investigated,and a QD laser diode lasing at 1.33μm in continuous operation mode at room temperature ...
A 1.60μm laser diode and electroabsorption modulator monolithically integrated with a novel dual-waveguide spot-size converter output for low-loss coupling to a cleaved single-mode optical fiber are demonstrated.The ...