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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 18 — Sep. 15, 2013
  • pp: 3496–3498

Wavelength reuse in a bidirectional radio-over-fiber link based on cross-gain and cross-polarization modulation in a semiconductor optical amplifier

Beibei Zhu, Shilong Pan, Dan Zhu, and Jianping Yao  »View Author Affiliations

Optics Letters, Vol. 38, Issue 18, pp. 3496-3498 (2013)

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Wavelength reuse in a bidirectional radio-over-fiber link is proposed and demonstrated based on the cross-gain modulation (XGM) and the cross-polarization modulation in a semiconductor optical amplifier (SOA). With a polarization beam splitter placed at the remote antenna unit, the polarization-modulated signal generated at the SOA is converted into noninverted and inverted intensity-modulated signals. The noninverted signal is used to cancel the inverted XGM-induced intensity-modulated signal to form a clean optical carrier for wavelength reuse in upstream signal transmission, while the inverted intensity-modulated signal is combined constructively to enhance the XGM-induced signal, providing robust downlink service. A bidirectional transmission of 5 GHz RF signal carrying a 50 MBaud 16 quadrature amplitude modulation baseband signal is experimentally implemented. The error vector magnitude degradation due to the fiber transmission for both the downlink and uplink signal is about 0.2%.

© 2013 Optical Society of America

OCIS Codes
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(230.4320) Optical devices : Nonlinear optical devices
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(350.4010) Other areas of optics : Microwaves
(130.5440) Integrated optics : Polarization-selective devices

ToC Category:

Original Manuscript: May 9, 2013
Revised Manuscript: August 9, 2013
Manuscript Accepted: August 11, 2013
Published: September 4, 2013

Beibei Zhu, Shilong Pan, Dan Zhu, and Jianping Yao, "Wavelength reuse in a bidirectional radio-over-fiber link based on cross-gain and cross-polarization modulation in a semiconductor optical amplifier," Opt. Lett. 38, 3496-3498 (2013)

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