Title :
The Influence of Optical Filtering on the Noise Performance of Microwave Photonic Phase Shifters Based on SOAs
Author :
Lloret, Juan ; Ramos, Francisco ; Xue, Weiqi ; Sancho, Juan ; Gasulla, Ivana ; Sales, Salvador ; Mørk, Jesper ; Capmany, José
Author_Institution :
ITEAM Res. Inst., Univ. Politec. de Valencia, Valencia, Spain
fDate :
6/15/2011 12:00:00 AM
Abstract :
Different optical filtering scenarios involving microwave photonic phase shifters based on semiconductor optical amplifiers are investigated numerically as well as experimentally with respect to noise performance. Investigations on the role of the modulation depth and number of elements in cascaded shifting stages are also carried out. Suppression of the noise level by more than 5 dB has been achieved in schemes based on band-pass optical filtering when three phase shifting stages are cascaded.
Keywords :
microwave photonics; optical filters; optical phase shifters; semiconductor optical amplifiers; SOA; band-pass optical filtering; microwave photonic phase shifters; optical filtering scenarios; semiconductor optical amplifiers; Band pass filters; Microwave filters; Noise; Optical attenuators; Optical filters; Optical noise; Noise figure; phase shifter; semiconductor optical amplifier (SOA); slow and fast light (SFL);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2135839
