Threshold current characteristics of intracavity-contacted oxide-confinedvertical-cavity surface-emitting laser had been investigated in detail. Threshold currentcharacteristics not only were depended on the size of o...Threshold current characteristics of intracavity-contacted oxide-confinedvertical-cavity surface-emitting laser had been investigated in detail. Threshold currentcharacteristics not only were depended on the size of oxide-aperture, but also were also stronglyaffected by the mismatch of its lasing mode and gain peak. For the same degree detuning of the gainpeak and lasing mode at room temperature, the threshold current was approximately proportional tothe square of the oxide-aperture diameter of above 5 μm. For the same oxide-aperture device, thelarger the detuning degree of the lasing mode shifted to the shorter wavelength of the gain peak atroom temperature was, the lower the minimum threshold current was. The wavelengths of the lasingmode and gain peak were ± N X 10 nm detuning at 300 K, The temperature of the minimum thresholdcurrent was changed to be about ± N X 40 K(N real number). The calculated results were consistentwith the experimental ones.展开更多
基金National Natural Science Foundation of China ( 60276033 ) National High Technology Research and Development Program of china(2002AA312070)+1 种基金 National Key Basic Research Plan of china(G20000683-02) Beijing Natural Science Foundation of China
文摘Threshold current characteristics of intracavity-contacted oxide-confinedvertical-cavity surface-emitting laser had been investigated in detail. Threshold currentcharacteristics not only were depended on the size of oxide-aperture, but also were also stronglyaffected by the mismatch of its lasing mode and gain peak. For the same degree detuning of the gainpeak and lasing mode at room temperature, the threshold current was approximately proportional tothe square of the oxide-aperture diameter of above 5 μm. For the same oxide-aperture device, thelarger the detuning degree of the lasing mode shifted to the shorter wavelength of the gain peak atroom temperature was, the lower the minimum threshold current was. The wavelengths of the lasingmode and gain peak were ± N X 10 nm detuning at 300 K, The temperature of the minimum thresholdcurrent was changed to be about ± N X 40 K(N real number). The calculated results were consistentwith the experimental ones.
