Franz–Keldysh effect in an optical waveguide containing a resonant tunneling diode

S G McMeekin, M R S Taylor, B Vogele, C R Stanley, C N Ironside

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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.
Original languageUndefined/Unknown
Pages (from-to)1076-1078
Number of pages3
JournalApplied Physics Letters
Issue number9
Publication statusPublished - Aug 1994


  • optical modulation
  • resonant tunneling diode
  • Franz–Keldysh effect

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