By introducing a Nyquist filter, we have successfully reduced a data signal bandwidth without intersymbol interference and transmitted a polarization-multiplexed 1Gsymbol/s, 64QAM (12 Gbit/s) coherent signal over 150 km in an optical bandwidth of 1.5GHz.
- Coherent transmission
- Frequency-stabilized laser
- Nyquist filter
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering