The Influence of Optical Filtering on the Noise Performance of Microwave Photonic Phase Shifters Based on SOAs

Juan Lloret, Francisco Ramos, Weiqi Xue, Juan Sancho, Ivana Gasulla, Salvador Sales, Jesper Mørk, José Capmany

Research output: Contribution to journalJournal articleResearchpeer-review

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.
Original languageEnglish
JournalJournal of Lightwave Technology
Volume29
Issue number12
Pages (from-to)1746-1752
ISSN0733-8724
DOIs
Publication statusPublished - 2011

Keywords

  • Semiconductor optical amplifier (SOA)
  • Phase shifter
  • Noise figure
  • Slow and fast light (SFL)

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