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Novel device for implementation of WDM in the visible spectrum

Published online by Cambridge University Press:  04 September 2012

P. Louro ,
M. Vieira ,
M. A. Vieira ,
V. Silva  and
A. Fantoni
P. Louro
Affiliation:
Electronics Telecommunications and Computer Dept, ISEL, Lisbon, Portugal. CTS-UNINOVA, Lisbon, Portugal.
M. Vieira
Affiliation:
Electronics Telecommunications and Computer Dept, ISEL, Lisbon, Portugal. CTS-UNINOVA, Lisbon, Portugal. DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal
M. A. Vieira
Affiliation:
Electronics Telecommunications and Computer Dept, ISEL, Lisbon, Portugal. CTS-UNINOVA, Lisbon, Portugal.
V. Silva
Affiliation:
Electronics Telecommunications and Computer Dept, ISEL, Lisbon, Portugal. CTS-UNINOVA, Lisbon, Portugal.
A. Fantoni
Affiliation:
Electronics Telecommunications and Computer Dept, ISEL, Lisbon, Portugal. CTS-UNINOVA, Lisbon, Portugal.
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Abstract

In this paper we report the use of a device based on two multilayered a-SiC:H/a-Si:H stacked heterostructures to photodetect and demultiplex optical signals of the visible spectrum. Both heterostructures were optimized for the detection of short and long wavelengths within the visible range. The optoelectronic characterization of the device includes spectral response measurements under reverse bias and using different optical steady state light conditions to soak the device. Results show that the device photocurrent signal measured using appropriate steady state optical bias, allows the separate detection of the input transmitted signals which enables the demultiplexing task. A numerical simulation, gives insight into the transduction mechanism to explain the device wavelength selective behavior.

Keywords

optoelectronicsensorsemiconducting
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1438: Symposium M – Optical Interconnects—Materials, Performance and Applications , 2012 , mrss12-1438-m06-02
Copyright
Copyright © Materials Research Society 2012

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References

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