DPSK signals demodulation based on a multimode fiber with a central dip

Chen, Xiaoyong; Rodriguez Horche, Paloma y Martín Minguez, Alfredo (2014). DPSK signals demodulation based on a multimode fiber with a central dip. En: "19th European Conference on Networks and Optical Communications (NOC 2014)", 04/06/2014 - 06/06/2014, Milano, Italy. pp. 18-22. https://doi.org/10.1109/NOC.2014.6996821.

Descripción

Título: DPSK signals demodulation based on a multimode fiber with a central dip
Autor/es:
  • Chen, Xiaoyong
  • Rodriguez Horche, Paloma
  • Martín Minguez, Alfredo
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 19th European Conference on Networks and Optical Communications (NOC 2014)
Fechas del Evento: 04/06/2014 - 06/06/2014
Lugar del Evento: Milano, Italy
Título del Libro: 19th European Conference on Networks and Optical Communications (NOC 2014)
Fecha: 2014
Materias:
Palabras Clave Informales: Optical communication; differential phase shift keying; modal interference; optical reciever
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Tecnología Fotónica y Bioingeniería
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Differential Phase Shift Keying (DPSK) modulation format has been shown as a robust solution for next-generation optical transmission systems. One key device enabling such systems is a delay interferometer, converting the phase modulation signal into the intensity modulation signal to be detected by the photodiodes. Usually, a standard Mach-Zehnder interferometer (MZI) is used for demodulating a DPSK signal. In this paper, we develop an MZI which is based on all-fiber Multimode Interference (MI) structure: a multimode fiber (MMF) with a central dip, located between two single-mode fibers (SMFs) without any transition zones. The MI based MZI (MI-MZI) is more stable than the standard MZI as the two arms share the same MMF, reducing the impact of the external effects, such as temperature and others. Performance of this MI-MZI is analyzed theoretically and experimentally from transmission spectrum. Experimental results shows that high interference extinction ratio is obtained, which is far higher than that obtained from a normal graded-index based MI-MZI. Finally, by software simulation, we demonstrate that our proposed MI-MZI can be used for demodulating a 40 Gbps DPSK signal. The performance of the MI-MZI based DPSK receiver is analyzed from the sensitivity. Simulation results show that sensitivity of the proposed receiver is about -22.3 dBm for a BER of 10-15 and about -23.8 dBm for a BER of 10-9.

Más información

ID de Registro: 36649
Identificador DC: http://oa.upm.es/36649/
Identificador OAI: oai:oa.upm.es:36649
Identificador DOI: 10.1109/NOC.2014.6996821
Depositado por: Memoria Investigacion
Depositado el: 25 Jul 2015 08:45
Ultima Modificación: 25 Jul 2015 08:45
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