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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 2, Iss. 10 — Oct. 1, 2010
  • pp: 841–847

Impact of Laser Relative Intensity Noise on a Multiband OFDM Ultrawideband Wireless Signal Over Fiber System

M. N. Sakib, B. Hraimel, Xiupu Zhang, Ke Wu, Taijun Liu, Tiefeng Xu, and Qiuhua Nie  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 2, Issue 10, pp. 841-847 (2010)
http://dx.doi.org/10.1364/JOCN.2.000841


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Abstract

We experimentally investigate and theoretically analyze the performance of a multiband orthogonal frequency division multiplexing (MB-OFDM) ultrawideband (UWB) wireless signal over fiber system considering the impact of laser relative intensity noise (RIN). Two types of RIN are considered: laser intrinsic RIN and laser phase-noise-converted RIN due to fiber dispersion. To reduce the impact of intrinsic RIN, laser output power of 2 dBm and beyond should be used. With the increase of fiber length and/or laser linewidth, UWB wireless signal over fiber is more degraded due to the converted RIN. For a given 0.6 dB degradation of error vector magnitude (EVM), the allowed laser linewidth is 30 MHz for 20 km of standard single-mode fiber for the first three bands. However, the converted RIN has much greater impact on higher-frequency UWB channels, depending on fiber length. A laser with a linewidth of less than 1 MHz will ensure that the EVM penalty due to the converted RIN is less than 1 dB for all 14 bands of MB-OFDM UWB.

© 2010 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Research Papers

History
Original Manuscript: May 3, 2010
Revised Manuscript: July 10, 2010
Manuscript Accepted: August 18, 2010
Published: September 29, 2010

Citation
M. N. Sakib, B. Hraimel, Xiupu Zhang, Ke Wu, Taijun Liu, Tiefeng Xu, and Qiuhua Nie, "Impact of Laser Relative Intensity Noise on a Multiband OFDM Ultrawideband Wireless Signal Over Fiber System," J. Opt. Commun. Netw. 2, 841-847 (2010)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-2-10-841

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