All-optical wavelength conversion using SOA at nearly symmetric position in a fiber-based Sagnac interferometric loop

Lei Xu, Ivan Glesk, Varghese Baby, Paul R. Prucnal

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report an experimental analysis of the wavelength conversion operation of a fiber-based Sagnac interferometric loop with a semiconductor optical amplifier (SOA) at nearly symmetric position. Improved extinction ratio is obtained due to the complementary operation of cross-polarization modulation and cross-gain modulation effects. Power penalty of 2.4 dB was obtained when the SOA offset is 17% of the bit period, which enables the use of the Sagnac interferometer with asymmetrically placed SOA-the terahertz optical asymmetric demultiplexer (TOAD)-as a multiple-functionality all-optical signal processing network element.
Original languageEnglish
Pages (from-to)539-541
Number of pages3
JournalIEEE Photonics Technology Letters
Volume16
Issue number2
DOIs
Publication statusPublished - 1 Feb 2004

Keywords

  • Sagnac interferometers
  • optical fibres
  • demultiplexing equipment
  • optical communication equipment

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