(a) BER as a function of distance for different Dt. Soliton pulse eye diagrams for (b) Dt = 150 ps at 1,950 km and (c) Dt = 150 ps at 2,350 km.

Contexts in source publication

Context 1

... have simulated the system to understand how the time spacing affects soliton integrity and demodulation. As seen in Fig. 3(a), it is possible to transmit groups of 4 solitons with Dt = 250 ps (8 Gbps) up to 2,000 km with a BER below the hard-decision forward error correction (HD FEC) limit and up to 2,750 km below the softdecision (SD) FEC limit. Similar results are obtained for a tighter soliton sequencing with Dt =150 ps (13.3 ...

Context 2

... compactification is detrimental. Ripples are seen in the BER curves at 1950 km for Dt = 150 ps and at 3500 km for Dt = 250 ps. In soliton merging, soliton pulses propagate together with different group velocities, changing their initial position within their TW. At specific distances they can partially or even completely overlap, as seen in Fig. 3(b). This makes it more difficult to recover them at the Rx even when compared with longer distances where they are again equally spaced [ Fig. 3(c)], as a consequence of the partial spectral overlap of the soliton pulses [4] making wavelength demultiplexing imperfect. Changing the frequency spacing or the initial time domain separation as ...

Context 3

... soliton pulses propagate together with different group velocities, changing their initial position within their TW. At specific distances they can partially or even completely overlap, as seen in Fig. 3(b). This makes it more difficult to recover them at the Rx even when compared with longer distances where they are again equally spaced [ Fig. 3(c)], as a consequence of the partial spectral overlap of the soliton pulses [4] making wavelength demultiplexing imperfect. Changing the frequency spacing or the initial time domain separation as enabled by the Tx reconfigurability allows shifting these ripples away from a targeted transmission length. Hence, this problem can be avoided ...

Context 4

... have simulated the system to understand how the time spacing affects soliton integrity and demodulation. As seen in Fig. 3(a), it is possible to transmit groups of 4 solitons with Dt = 250 ps (8 Gbps) up to 2,000 km with a BER below the hard-decision forward error correction (HD FEC) limit and up to 2,750 km below the softdecision (SD) FEC limit. Similar results are obtained for a tighter soliton sequencing with Dt =150 ps (13.3 ...

Context 5

... compactification is detrimental. Ripples are seen in the BER curves at 1950 km for Dt = 150 ps and at 3500 km for Dt = 250 ps. In soliton merging, soliton pulses propagate together with different group velocities, changing their initial position within their TW. At specific distances they can partially or even completely overlap, as seen in Fig. 3(b). This makes it more difficult to recover them at the Rx even when compared with longer distances where they are again equally spaced [ Fig. 3(c)], as a consequence of the partial spectral overlap of the soliton pulses [4] making wavelength demultiplexing imperfect. Changing the frequency spacing or the initial time domain separation as ...

Context 6

... soliton pulses propagate together with different group velocities, changing their initial position within their TW. At specific distances they can partially or even completely overlap, as seen in Fig. 3(b). This makes it more difficult to recover them at the Rx even when compared with longer distances where they are again equally spaced [ Fig. 3(c)], as a consequence of the partial spectral overlap of the soliton pulses [4] making wavelength demultiplexing imperfect. Changing the frequency spacing or the initial time domain separation as enabled by the Tx reconfigurability allows shifting these ripples away from a targeted transmission length. Hence, this problem can be avoided ...