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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 6276–6286

The application of cost-effective lasers in coherent UDWDM-OFDM-PON aided by effective phase noise suppression methods

Yue Liu, Chuanchuan Yang, Feng Yang, and Hongbin Li  »View Author Affiliations

Optics Express, Vol. 22, Issue 6, pp. 6276-6286 (2014)

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Digital coherent passive optical network (PON), especially the coherent orthogonal frequency division multiplexing PON (OFDM-PON), is a strong candidate for the 2nd-stage-next-generation PON (NG-PON2). As is known, OFDM is very sensitive to the laser phase noise which severely limits the application of the cost-effective distributed feedback (DFB) lasers and more energy-efficient vertical cavity surface emitting lasers (VCSEL) in the coherent OFDM-PON. The current long-reach coherent OFDM-PON experiments always choose the expensive external cavity laser (ECL) as the optical source for its narrow linewidth (usually<100 KHz). To solve this problem, we introduce the orthogonal basis expansion based (OBE) phase noise suppression method to the coherent OFDM-PON and study the possibility of the application of the DFB lasers and VCSEL in coherent OFDM-PON. A typical long-reach coherent ultra dense wavelength division multiplexing (UDWDM) OFDM-PON has been set up. The numerical results prove that the OBE method can stand severe phase noise of the lasers in this architecture and the DFB lasers as well as VCSEL can be used in coherent OFDM-PON. In this paper, we have also analyzed the performance of the RF-pilot-aided (RFP) phase noise suppression method in coherent OFDM-PON.

© 2014 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Optical Communications

Original Manuscript: January 2, 2014
Revised Manuscript: February 27, 2014
Manuscript Accepted: February 27, 2014
Published: March 10, 2014

Yue Liu, Chuanchuan Yang, Feng Yang, and Hongbin Li, "The application of cost-effective lasers in coherent UDWDM-OFDM-PON aided by effective phase noise suppression methods," Opt. Express 22, 6276-6286 (2014)

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