Properties of wavelength converters based on semiconductor optical amplifiers in the arms of a Mach-Zehnder interferometer

John C. Cartledge; Shao-chun Cao

doi:10.1117/12.469579

3 June 2002 Properties of wavelength converters based on semiconductor optical amplifiers in the arms of a Mach-Zehnder interferometer

John C. Cartledge, Shao-chun Cao

Author Affiliations +

Proceedings Volume 4652, Optoelectronic Interconnects, Integrated Circuits, and Packaging; (2002) https://doi.org/10.1117/12.469579
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

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.

Citation Download Citation

John C. Cartledge and Shao-chun Cao "Properties of wavelength converters based on semiconductor optical amplifiers in the arms of a Mach-Zehnder interferometer", Proc. SPIE 4652, Optoelectronic Interconnects, Integrated Circuits, and Packaging, (3 June 2002); https://doi.org/10.1117/12.469579

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