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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 27, Iss. 21 — Nov. 1, 2009
  • pp: 4686–4696

Applied Constant Gain Amplification in Circulating Loop Experiments

Frank Smyth, Daniel C. Kilper, Sethumadhavan Chandrasekhar, and Liam P. Barry

Journal of Lightwave Technology, Vol. 27, Issue 21, pp. 4686-4696 (2009)

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The reconfiguration of channel or wavelength routes in optically transparent mesh networks can lead to deviations in channel power that may impact transmission performance. A new experimental approach, applied constant gain, is used to maintain constant gain in a circulating loop enabling the study of gain error effects on long-haul transmission under reconfigured channel loading. Using this technique we examine a number of channel configurations and system tuning operations for both full-span dispersion-compensated and optimized dispersion-managed systems. For each system design, large power divergence was observed with a maximum of 15 dB at 2240 km, when switching was implemented without additional system tuning. For a bit error rate of $10 ^{-3}$, the maximum number of loop circulations was reduced by up to 33%.

© 2009 IEEE

Frank Smyth, Daniel C. Kilper, Sethumadhavan Chandrasekhar, and Liam P. Barry, "Applied Constant Gain Amplification in Circulating Loop Experiments," J. Lightwave Technol. 27, 4686-4696 (2009)

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