| 1. |
- Forzati, Marco, et al.
(författare)
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Reduction of intra-channel four-wave mixing using the alternate-phase RZ modulation format
- 2002
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Ingår i: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 14:9
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Tidskriftsartikel (refereegranskat)abstract
- —The authors propose a modulation format in which the phase of the signal pulses alternates, in order to reduce the intrachannel four-wave mixing. They demonstrate numerically that the performance of a 40-Gb/s transmission link can be substantially improved.
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| 2. |
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| 3. |
- Johannisson, Pontus, et al.
(författare)
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Generation and dynamics of ghost pulses in strongly dispersion-managed fiber-optic communication systems
- 2001
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Ingår i: Optics Letters. - : Optical Society of America (OSA). - 0146-9592 .- 1539-4794. ; 26:16, s. 1227-1229
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Tidskriftsartikel (refereegranskat)abstract
- We investigate the nonlinear generation and dynamics of ghost pulses in high-speed strongly dispersion-managed fiber-optic communication systems. Particular consideration is given to the importance of system parameters for the properties of the emerging ghost pulses. Conclusions are drawn about the growth rate and the temporal position of the ghost pulses in different systems.
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| 4. |
- Johannisson, Pontus, et al.
(författare)
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Suppression of nonlinear effects by phase alternation in strongly dispersion-managed optical transmission
- 2002
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Ingår i: Optics Letters. - 0146-9592 .- 1539-4794. ; 27:12
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Tidskriftsartikel (refereegranskat)abstract
- The nonlinear effects of amplitude jitter and ghost pulse generation, which are present in strongly dispersion-managed optical communication systems can be suppressed by alternation of the phase of the bits. A physical explanation for this effect is given that shows that with suitably chosen phase modulations the processes that give rise to the nonlinear effects will counteract each other.
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| 5. |
- Mårtensson, Jonas, et al.
(författare)
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Timing jitter owing to intrachannel pulse interactions in dispersion-managed transmission systems
- 2001
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Ingår i: Optics Letters. - 0146-9592 .- 1539-4794. ; 26, s. 55-57
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Tidskriftsartikel (refereegranskat)abstract
- We study interaction-induced timing jitter in single-channel dispersion-managed return-to-zero ttransmission systems operating at high map strengths. An equation for the frequency and timing shifts of two interacting pulses is derived by a variational approach. The interaction can be of either an attractive or a repulsive character, and we show that the resultant timing jitter can be reduced by proper design of the dispersion map.
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