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Non-selective optical wavelength-division multiplexing devices based on a-SiC:H multilayer heterostuctures

Published online by Cambridge University Press:  01 February 2011

Manuela Vieira ,
Miguel Fernandes ,
Paula Louro ,
Manuel Augusto Vieira ,
Manuel Barata  and
Alessandro Fantoni
Manuela Vieira
Affiliation:
mv@isel.ipl.pt, ISEL, DEETC, Rua Conselheiro Emidío Navarro, Lisbon, 1900-019, Portugal, +351218317180, +351218317114
Miguel Fernandes
Affiliation:
mf@deetc.isel.ipl.pt, ISEL, Electronics Telecommunication and Computer Dept., Rua Conselheiro Emídio Navarro, Lisbon, 1959-007, Portugal
Paula Louro
Affiliation:
plouro@deetc.isel.ipl.pt, ISEL, Electronics Telecommunication and Computer Dept., Rua Conselheiro Emídio Navarro, Lisbon, 1959-007, Portugal
Manuel Augusto Vieira
Affiliation:
mvieira@deetc.isel.ipl.pt, ISEL, Electronics Telecommunication and Computer Dept., Rua Conselheiro Emídio Navarro, Lisbon, 1959-007, Portugal
Manuel Barata
Affiliation:
mmb@isel.ipl.pt, ISEL, Electronics Telecommunication and Computer Dept., Rua Conselheiro Emídio Navarro, Lisbon, 1959-007, Portugal
Alessandro Fantoni
Affiliation:
afantoni@deetc.isel.ipl.pt, ISEL, Electronics Telecommunication and Computer Dept., Rua Conselheiro Emídio Navarro, Lisbon, 1959-007, Portugal
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Abstract

In this paper we present results on the optimization of multilayered a-SiC:H heterostructures for wavelength-division (de) multiplexing applications. The non selective WDM device is a double heterostructure in a glass/ITO/a-SiC:H (p-i-n) /a-SiC:H(-p) /a-Si:H(-i')/a-SiC:H (-n')/ITO configuration. The single or the multiple modulated wavelength channels are passed through the device, and absorbed accordingly to its wavelength, giving rise to a time dependent wavelength electrical field modulation across it. The effect of single or multiple input signals is converted to an electrical signal to regain the information (wavelength, intensity and frequency) of the incoming carriers. Here, the (de) multiplexing channels is accomplished electronically, not optically. This approach has advantages in terms of cost since several channels share the same optical components; and the electrical components are typically less expensive than optical ones. An electrical model gives insight into the device operation

Keywords

microelectronicsphotoconductivityoptoelectronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1076: Symposium K – Materials and Devices for Laser Remote Sensing and Optical Communication , 2008 , 1076-K09-02
Copyright
Copyright © Materials Research Society 2008

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References

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