Model for Speed Performance of Quantum-Dot Waveguide Photodiode

Model for Speed Performance of Quantum-Dot Waveguide Photodiode

A model is proposed that makes it possible to analytically analyze the speed performance of a waveguide p – i – n photodiode with a light-absorbing region representing a multilayered array of quantum dots separated by undoped spacers. It is shown that there is an optimal number of layers of quantum...

Full description

Saved in:
Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) Vol. 57; no. 13; pp. 632 - 637
Main Authors: Zhukov, A. E., Kryzhanovskaya, N. V., Makhov, I. S., Moiseev, E. I., Nadtochiy, A. M., Fominykh, N. A., Mintairov, S. A., Kalyuzhyy, N. A., Zubov, F. I., Maximov, M. V.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-12-2023
Springer Nature B.V
Subjects:
Electromagnetic absorption
Frequency ranges
Magnetic Materials
Magnetism
Photodiodes
Physics
Physics and Astronomy
Quantum dots
Quantum wells
Spacers
Waveguides
photo diode
quantum dots
speed
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A model is proposed that makes it possible to analytically analyze the speed performance of a waveguide p – i – n photodiode with a light-absorbing region representing a multilayered array of quantum dots separated by undoped spacers. It is shown that there is an optimal number of layers of quantum dots, as well as an optimal thickness of the spacers, which provide the widest bandwidth. The possibility of achieving a frequency range (at the level of –3 dB) above 20 GHz for waveguide photodiodes based on InGaAs/GaAs quantum well-dots is shown.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782623050184