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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 22 — Oct. 24, 2011
  • pp: 21880–21889

Digital subcarrier multiplexing for flexible spectral allocation in optical transport network

Yuanyuan Zhang, Maurice O’Sullivan, and Rongqing Hui  »View Author Affiliations


Optics Express, Vol. 19, Issue 22, pp. 21880-21889 (2011)
http://dx.doi.org/10.1364/OE.19.021880


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Abstract

We demonstrate a spectrally efficient digital subcarrier multiplexed (DSCM) coherent optical system for optical transport network. In the proposed system, mutually orthogonal subcarrier channels are digitally generated, which allows a high degree of flexibility in bandwidth allocation and scalability in data rate granularity. The receiver can also dynamically change the number of DSCM channels for detection without changing the system configuration. We experimentally investigate the transmission performance of a 22.2Gb/s DSCM system with 10 subcarrier channels using QPSK modulation. The impacts of channel spacing and time mismatch between subcarrier channels are also explored.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 28, 2011
Manuscript Accepted: October 1, 2011
Published: October 20, 2011

Citation
Yuanyuan Zhang, Maurice O’Sullivan, and Rongqing Hui, "Digital subcarrier multiplexing for flexible spectral allocation in optical transport network," Opt. Express 19, 21880-21889 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-22-21880


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