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

Volume

29

Issue

12

fYear

2011

fDate

6/15/2011 12:00:00 AM

Firstpage

1746

Lastpage

1752

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);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2135839

Filename

5741702