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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17620–17631

Generalized weighted crosstalk for DWDM systems with cascaded wavelength-selective switches

Mark Filer and Sorin Tibuleac  »View Author Affiliations


Optics Express, Vol. 20, Issue 16, pp. 17620-17631 (2012)
http://dx.doi.org/10.1364/OE.20.017620


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Abstract

A generalized method for estimating transmission penalties from spectrally-shaped crosstalk in cascaded multi-port WSS networks is derived, including effects of ASE, signal filtering, and crosstalk filtering. The weighted crosstalk value is computed by multiplying the shaped interfering signal by the power spectral density of the primary signal. This value is used to predict OSNR penalties in networks with cascaded WSSs of arbitrary port count. Theoretical treatment is supported by extensive numerical simulations and experiments for a variety of network configurations. Examples are presented for 43 Gb/s DPSK and 120 Gb/s DP-QPSK in cascaded ROADM networks with three distinct WSS types.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4230) Fiber optics and optical communications : Multiplexing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 12, 2012
Revised Manuscript: July 5, 2012
Manuscript Accepted: July 11, 2012
Published: July 18, 2012

Citation
Mark Filer and Sorin Tibuleac, "Generalized weighted crosstalk for DWDM systems with cascaded wavelength-selective switches," Opt. Express 20, 17620-17631 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-16-17620


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