Title :
300 ps switching of spontaneous emission by quantum confined field effect in a light emitting triode
Author :
Ohnishi, T. ; Mukaiyama, K. ; Yamanishi, M. ; Ochi, N. ; Ono, Y. ; Kan, Y. ; Ishikawa, H. ; Suemune, I.
Author_Institution :
Dept. of Phys. Electron., Hiroshima Univ., Japan
Abstract :
A high-speed switching, as fast as 300 ps, of spontaneous emission is achieved in the recently developed quantum-confined field-effect light emitting triode. As a result of the combination of the field control of radiative life time with modulation of carrier-generation rate, the light intensity modulation does not rely on changes in carrier population at all but on the field control of the radiative life time in the quantum well structure of the device. Elaborated is the allowance for the deviation of the modulation depth of injection current from an optimum value in the modulation scheme.<>
Keywords :
high-speed optical techniques; light emitting devices; optical modulation; radiative lifetimes; triodes; 300 ps; carrier population; carrier-generation rate; high-speed switching; injection current; light emitting triode; light intensity modulation; modulated carrier generation; modulation depth; quantum confined field effect; quantum well structure; radiative life time; spontaneous emission; Delay; Gallium arsenide; Intensity modulation; Light emitting diodes; Lighting control; Luminescence; Optical modulation; Potential well; Spontaneous emission; Temperature;
Journal_Title :
Photonics Technology Letters, IEEE
