Optical modulation in a waveguide containing a resonant tunneling diode has been observed. The observations are in agreement with a model which assumes that the modulation effect is due to a Franz–Keldysh band-edge shift produced by the electric field developed over a depletion region association with operation of the resonant tunneling diode. The effect has device potential for optical modulation at microwave frequencies.
- optical modulation
- resonant tunneling diode
- Franz–Keldysh effect
McMeekin, S. G., Taylor, M. R. S., Vogele, B., Stanley, C. R., & Ironside, C. N. (1994). Franz–Keldysh effect in an optical waveguide containing a resonant tunneling diode. Applied Physics Letters, 65(9), 1076-1078. https://doi.org/10.1063/1.112130