| Zhang Bo-lin,Song Mu-ping.Theoretical study of all-optical NRZ to RZ format conversion with tunable pulse width based on XPM in a silicon waveguide[J].Optoelectronics Letters,2012,8(1):56-59 |
| Theoretical study of all-optical NRZ to RZ format conversion with tunable pulse width based on XPM in a silicon waveguide |
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| Abstract: |
| An all-optical format conversion from non-return-to-zero (NRZ) to return-to-zero (RZ) is presented based on cross-phase modulation
(XPM) in a silicon waveguide with a detuned optical bandpass filter (OBPF). The simulation results show that the tunable bandwidth
of the OBPF leads to RZ signals with tunable pulse width. The conversion efficiency (CE) and the pattern effect of the RZ
signal are attributed to the parameters of the pump pulse and the OBPF. The converted RZ signal exhibits lower timing jitter
than the NRZ signal. |
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