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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 21 — Oct. 11, 2010
  • pp: 21750–21756

Radio over fiber transceiver employing phase modulation of an optical broadband source

Fulvio Grassi, José Mora, Beatriz Ortega, and José Capmany  »View Author Affiliations

Optics Express, Vol. 18, Issue 21, pp. 21750-21756 (2010)

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This paper proposes a low-cost RoF transceiver for multichannel SCM/WDM signal distribution suitable for future broadband access networks. The transceiver is based on the phase modulation of an optical broadband source centered at third transmission window. Prior to phase modulation the optical broadband source output signal is launched into a Mach-Zehnder interferometer structure, as key device enabling radio signals propagation over the optical link. Furthermore, an optical CWDM is employed to create a multichannel scenario by performing the spectral slicing of the modulated optical signal into a number of channels each one conveying the information from the central office to different base stations. The operation range is up to 20 GHz with a modulation bandwidth around of 500 MHz. Experimental results of the transmission of SCM QPSK and 64-QAM data through 20 Km of SMF exhibit good EVM results in the operative range determined by the phase-to-intensity conversion process. The proposed approach shows a great suitability for WDM networks based on RoF signal transport and also represents a cost-effective solution for passive optical networks.

© 2010 OSA

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 7, 2010
Revised Manuscript: July 19, 2010
Manuscript Accepted: July 22, 2010
Published: September 29, 2010

Fulvio Grassi, José Mora, Beatriz Ortega, and José Capmany, "Radio over fiber transceiver employing phase modulation of an optical broadband source," Opt. Express 18, 21750-21756 (2010)

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