Capacity limits of systems employing multiple optical phase conjugators


We extend the theory of parametric noise amplification to the case of transmission systems employing multiple optical phase conjugators, demonstrating that the excess noise due to this process may be reduced in direct proportion to the number of phase conjugation devices employed. We further identify that the optimum noise suppression is achieved for an odd number of phase conjugators, and that the noise may be further suppressed by up to 3dB by partial digital back propagation (or fractional spans at the ends of the links).

Publication DOI:
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: Funding: Royal Society (WM120035); and EPSRC (EP/L000091/1; EP/J01758)
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link: https://www.osa ... =oe-23-16-20381
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-07-27
Accepted Date: 2015-06-19
Submitted Date: 2015-05-06
Authors: Ellis, A.D. ( 0000-0002-0417-0547)
Mccarthy, M.E. ( 0000-0002-1348-1574)
Al-khateeb, M.A.Z. ( 0000-0002-1367-6777)
Sygletos, S. ( 0000-0003-2063-8733)

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