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Proceedings Paper

Properties of wavelength converters based on semiconductor optical amplifiers in the arms of a Mach-Zehnder interferometer
Author(s): John C. Cartledge; Shao-chun Cao
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Paper Abstract

The results of a detailed experimental characterization of a three-port, all-active SOA-MZI wavelength converter are presented. It is shown that for counter-propagating input signals, the ASE noise is intensity modulated due to gain saturation in the output SOA. Consequently, the waveform for the wavelength-converted signal is determined by both cross- phase modulation and self-gain modulation. Time- and frequency-domain measurements are used to characterize the properties of the modulated ASE noise, wavelength-converted signal and total signal. For both co- and counter- propagating signals, the small-signal chirp properties of the wavelength converted along the conversion curve are considered. The measured results for the small-signal chirp and optical conversion are incorporated into a device model that can be used to obtain the large-signal pulse response. Based on this model, good agreement is demonstrated between calculated and measured results for the time dependence of the intensity and chirp of the wavelength-converted signal.

Paper Details

Date Published: 3 June 2002
PDF: 9 pages
Proc. SPIE 4652, Optoelectronic Interconnects, Integrated Circuits, and Packaging, (3 June 2002); doi: 10.1117/12.469579
Show Author Affiliations
John C. Cartledge, Queen's Univ. (Canada)
Shao-chun Cao, Queen's Univ. and Communications Research Ctr. (Canada)

Published in SPIE Proceedings Vol. 4652:
Optoelectronic Interconnects, Integrated Circuits, and Packaging
Louay A. Eldada; John R. Rowlette Sr.; Randy A. Heyler; Randy A. Heyler; John R. Rowlette Sr., Editor(s)

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