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We experimentally demonstrate a novel 3-dimensional modulation format with 1.2-dB OSNR tolerance improvement potential compared to DP-BPSK, as verified for the linear case. The non-linearity tolerance is evaluated in single-span transmission over 300km SSMF.
We experimentally investigate 107 Gb/s 33%-RZ-DQPSK to explore its tolerance towards chromatic dispersion and narrow-band optical filtering. The results indicate that dispersion tolerance can be increased by the use of appropriate filters.
A simple analytical method to estimate the OSNR sensitivity of multi-level amplitude, phase and combined modulation formats is shown. Results are verified by numerical simulations.
Within this contribution the impact of phase ripples and amplitude filtering induced by fiber Bragg gratings (FBGs) for in-line dispersion compensation in optical long-haul wavelength division multiplex (WDM) transmission systems is investigated. The goal is to evaluate the possibilities and limitations of employing FBGs instead of dispersion compensating fiber (DCF) in modern communication systems...
We present a simulative investigation of the influence of phase ripple distortions of FBGs on different modulation formats. Statistical ripple characteristics emulate a realistic system setup.
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