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10 February 2006 Performance comparison of advanced optical modulation formats in wavelength division multiplexing (WDM) systems employing G.655 fibers
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Abstract
This paper studies the non-linear tolerance of several modulation formats in a four-span WDM system (8x10Gb/s) using low chromatic dispersion fiber. The narrow spacing between the channels (50 GHz) makes FWM to be the most detrimental effect experienced in each span made of G.655 fiber (80 km, D=2ps/nm.km) compensated by 0.8 km of DCF. A particular attention to the Q factor computed in the simulations enables a fair comparison between IMDD (Intensity Modulated Direct Detection) and phase modulated formats. It is shown that the various amplitude modulation alternatives result in more or less the same performance. Phase modulation schemes drastically increase the system performance leading to an increase of the Q-factor by almost 3dB.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ioannis Neokosmidis, Thomas Kamalakis, Athanasios Theocharidis, Antonis Bogris, and Thomas Sphicopoulos "Performance comparison of advanced optical modulation formats in wavelength division multiplexing (WDM) systems employing G.655 fibers", Proc. SPIE 6103, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications V, 610317 (10 February 2006); https://doi.org/10.1117/12.647789
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