Waveguide electro-optic modulator using population depletion in a Schottky diode

A waveguide middle-infrared electro-optic modulator working at room temperature is demonstrated. It contains only six quantum wells. A reverse biased Schottky diode is used to deplete the electronic population in quantum wells and to modulate the intersubband absorption coefficient. The 14% modulati...

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Bibliographic Details
Published in:Superlattices and microstructures 1996-01, Vol.20 (1), p.131-135
Main Authors: Berger, V., Delacourt, D., Vodjdani, N., Schnell, J.P.
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Optoelectronic devices
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Online Access:Get full text
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Summary:A waveguide middle-infrared electro-optic modulator working at room temperature is demonstrated. It contains only six quantum wells. A reverse biased Schottky diode is used to deplete the electronic population in quantum wells and to modulate the intersubband absorption coefficient. The 14% modulation could easily be enhanced by optimizing the quantum well overlap with the optical guided mode of the waveguide.
ISSN:0749-6036
1096-3677
DOI:10.1006/spmi.1996.0058