Analysis and optimization of SPM-based 2R signal regeneration at 40 gb/s

Operation properties of a reconfigurable photonic logic gate based on cross phase modulation in highly nonlinear fibers

“…The input of the reshaping device is the filtered probe of the reconfigurable gate. The zero dispersion wavelength of the second fiber must be higher than the frequency of the filtered probe launched into it, in order to avoid any noise arising from modulation instability, which would potentially be observed in anomalous dispersion region of a fiber [15].…”

Active Mamyshev regenerator

“…This important building block of future high-speed optical grooming switches 3) can be achieved by using various optical methods taking advantage of the instantaneous Kerr non-linear response of optical fibers : non-linear optical loop mirrors (NOLMs) 4,5) , four-wave mixing 6) , or self-phase modulation (SPM) in normally 7) or anomalous 8,9) dispersive fibers (the two latest methods being known as "Mamyshev" (MR) and "spectrally filtered solitons" respectively). Thanks to its ability to simultaneously improve '0' and '1' bits of signal in a rather simple experimental scheme, MR technique has stimulated a large amount of works, both theoretical [10][11][12][13][14][15][16][17][18][19] and experimental 7,12,16,[19][20][21][22] .…”

Effect of dispersion slope of highly nonlinear fibre on the performance of Self Phase Modulation based 2R-optical regenerator

“…Based on similar technique, All-Optical regeneration of RZ-DQPSK signal at 160 Gbit/s (80 Gsymbols/s) has been shown in [4]. Much of the research done on the physical structure of the regenerator has focussed on the properties of the highly nonlinear fibre (HNLF) to obtain optimum performance from the regenerator [5], [6], [7] and [8]. References [9] and [10] present generalized scaling rules which can be used to obtain optimum regeneration performance out of HNLFs with known parameters.…”