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An InP Monolithically Integrated Unicast and Multicast Wavelength Converter
No full textWe experimentally demonstrate a novel Indium Phosphide monolithically integrated optical circuit for all-optical wavelength conversion. The circuit exploits two cascaded cross gain modulation (XGM) interactions in semiconductor optical amplifiers. In a first XGM stage, the input signal and a continuous wave light at the desired output wavelength generate a wavelength converted yet not ideal copy of the input signal, whereas, in the second XGM stage, the quality of the wavelength converted signal is significantly improved because of the cross gain compression effect. We report 10 Gb/s wavelength conversion performance for both the unicast (single output wavelength) and the multicast (multiple output wavelengths) conversion. Experimental results confirm the effectiveness of the present photonic integrated circuit in both cases, showing only a moderate bit error rate power penalty
Photonic Integrated Wavelength Converter based on Double Stage Cross Gain Modulation in SOAs
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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