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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 10 — May. 20, 2013
  • pp: 11921–11927

Wavelength reuse in a bidirectional UWB over fiber system

Tong Shao and Jianping Yao  »View Author Affiliations

Optics Express, Vol. 21, Issue 10, pp. 11921-11927 (2013)

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Wavelength reuse in a bidirectional UWB over fiber system using a polarization modulator (PolM) and an electro-absorption modulator (EAM) is proposed and experimentally demonstrated. Since the PolM functions as a special phase modulator that supports phase modulation along the two principal axes with opposite modulation indices and the EAM is a polarization-independent component, the signals due to the phase-modulation to intensity-modulation (PM-IM) conversion along the two orthogonal directions in the upstream link will be complementary and cancelled out, thus the impact of the downstream signal to the upstream transmission due to the PM-IM conversion is fully eliminated. Error-free bidirectional transmission of a 1.25-Gbps UWB signal over 17 km single-mode fiber (SMF) is demonstrated. A power penalty due to the wavelength reuse for upstream transmission is measured to be as low as 0.2 dB.

© 2013 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 16, 2013
Revised Manuscript: May 3, 2013
Manuscript Accepted: May 4, 2013
Published: May 8, 2013

Tong Shao and Jianping Yao, "Wavelength reuse in a bidirectional UWB over fiber system," Opt. Express 21, 11921-11927 (2013)

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