Performance of a multi-Gb/s 60 GHz radio over fiber system employing a directly modulated optically injection-locked VCSEL

Anthony Ng'Oma, Davide Fortusini, Devang Parekh, Weijian Yang, Michael Sauer, Seldon Benjamin, Werner Hofmann, Markus C. Amann, Connie J. Chang-Hasnain

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

A multi-Gb/s 60 GHz radio over fiber (RoF) system employing direct modulation of an optically injection locked vertical-cavity surface-emitting laser is successfully demonstrated. Experimental results show that the RoF system is tolerant to fiber chromatic dispersion due to inherent single-sideband modulation produced by injection locking. A simple carrier-to-sideband equalization method is used to substantially improve the sensitivity of the RoF system by 18 dB, enabling both successful wireless signal transmission and multilevel signal modulation formats such as quadrature phase shift keying (QPSK). At least 3 Gb/s ASK-modulated data and 2 Gb/s QPSK-modulated data is transported over up to 20 km standard single-mode fiber and 3 m wireless distance with no penalty.

Original languageEnglish
Article number5440944
Pages (from-to)2436-2444
Number of pages9
JournalJournal of Lightwave Technology
Volume28
Issue number16
DOIs
StatePublished - 2010

Keywords

  • Millimeter wave radio communication
  • optical injection locking
  • radio over fiber (RoF)
  • vertical-cavity surface-emitting lasers (VCSELs)

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