Journal article
640 GBd Phase-Correlated OTDM NRZ-OOK Generation and Field Trial Transmission
We generate a 640 GBd phase-correlated optical time-division multiplexed (PC-OTDM) return-to-zero ON–OFF keying (RZ-OOK) signal based on cross-phase-modulation-induced cross-polarization rotation in an Al highly nonlinear fiber and a 640 GBd PC-OTDM nonreturn-to-zero (NRZ)-OOK signal by RZ-to-NRZ conversion using passive filtering.
This is employed in a 1.19 Tb/s PDM-NRZ-OOK field transmission with ${\rm BER} <3.8\times 10^{-3}$ for all 128 tributaries. As a benefit of phase coherence between adjacent TDM channels, a PC-OTDM signal can be very tolerant to strict filtering and the bandwidth of the 640 GBd PC-OTDM NRZ-OOK signal can be restricted to 700 GHz.
In addition, with a narrower spectrum a PC-OTDM NRZ-OOK signal is more tolerant to chromatic dispersion and polarization-mode dispersion compared to a conventional (i.e., phase-uncorrelated) OTDM RZ signal.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2013 |
| Pages: | 696-701 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2012.2225411 |
| ORCIDs: | Hu, Hao , Galili, Michael , Jeppesen, Palle and Oxenløwe, Leif Katsuo |
Cross-phase modulation (XPM) Cross-polarization rotation (CPR) Field trial transmission Highly nonlinear fiber (HNLF) Nonreturn-to-zero (NRZ) Phase-correlated optical time-division multiplexing (PC-OTDM)
BER Bandwidth Bit error rate Dispersion Filtering Nonlinear optics Optical filters Optical signal processing RZ-to-NRZ conversion amplitude shift keying chromatic dispersion correlation methods cross-phase modulation (XPM) cross-phase-modulation-induced cross-polarization rotation cross-polarization rotation (CPR) error statistics field trial transmission highly nonlinear fiber (HNLF) nonlinear fiber nonreturn-to-zero (NRZ) nonreturn-to-zero signal optical modulation passive filtering passive filters phase coherence phase modulation phase-correlated OTDM NRZ-OOK generation phase-correlated optical time-division multiplexing phase-correlated optical time-division multiplexing (PC-OTDM) polarisation polarization-mode dispersion return-to-zero ON-OFF keying signal time division multiplexing
