Recovery of multiple amplitude levels from a DQPSK NRZ signal using a single Mach-Zehnder Interferometer

Nigel Johnson, Suresh M. Nissanka, Marc A. Eberhard, Akihiro Maruta

Research output: Contribution to conferencePoster

Abstract

In this research the recovery of a DQPSK signal will be demonstrated using a single Mach-Zehnder Interferometer (MZI). By changing the phase delay in one of the arms it will be shown that different delays will produce different output levels. It will also be shown that with a certain level of phase shift the DQPSK signal can be converted into four different equally spaced optical power levels. With each decoded level representing one of the four possible bit permutations. By using this additional phase shift in one of the arms the number of MZIs required for decoding can be reduced from two to one.
Original languageEnglish
PagesAMP-14
Publication statusPublished - Aug 2008
Event1st Global COE Student Conference on Innovative Electronic Topics (SCIENT2008) - Osaka University, Osaka , Japan
Duration: 31 Jul 20081 Aug 2008

Conference

Conference1st Global COE Student Conference on Innovative Electronic Topics (SCIENT2008)
Abbreviated titleSCIENT2008
CountryJapan
CityOsaka University, Osaka
Period31/07/081/08/08

Keywords

  • recovery
  • DQPSK signal
  • single Mach-Zehnder Interferometer
  • phase delay
  • phase shift
  • optical power levels
  • decoding

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    Johnson, N., Nissanka, S. M., Eberhard, M. A., & Maruta, A. (2008). Recovery of multiple amplitude levels from a DQPSK NRZ signal using a single Mach-Zehnder Interferometer. AMP-14. Poster session presented at 1st Global COE Student Conference on Innovative Electronic Topics (SCIENT2008), Osaka University, Osaka , Japan.