| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10343757 | Optical Fiber Technology | 2014 | 5 Pages |
Abstract
We investigate optical prefiltering for 56Â Gbaud (224Â Gbit/s) electrical time-division multiplexed (ETDM) dual polarization (DP) quaternary phase shift keying (QPSK) transmission. Different transmitter-side optical filter shapes are tested and their bandwidths are varied. Comparison of studied filter shapes shows an advantage of a pre-emphasis filter. Subsequently, we perform a fiber transmission of the 56Â Gbaud DP QPSK signal filtered with the 65Â GHz pre-emphasis filter to fit the 75Â GHz transmission grid. Bit error rate (BER) of the signal remains below forward error correction (FEC) limit after 300Â km of fiber propagation.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Robert Borkowski, Luis Henrique H. de Carvalho, Edson Porto da Silva, Júlio César M. Diniz, Darko Zibar, Júlio César R.F. de Oliveira, Idelfonso Tafur Monroy,