Sg. Mcmeekin et al., FRANZ-KELDYSH EFFECT IN AN OPTICAL WAVE-GUIDE CONTAINING A RESONANT-TUNNELING DIODE, Applied physics letters, 65(9), 1994, pp. 1076-1078
Optical modulation in a waveguide containing a resonant tunneling diod
e has been observed. The observations are in agreement with a model wh
ich assumes that the modulation effect is due to a Franz-Keldysh band-
edge shift produced by the electric field developed over a depletion r
egion association with operation of the resonant tunneling diode. The
effect has device potential for optical modulation at microwave freque
ncies.