Title :
Investigation of PAM-4 for extending reach in data center interconnect applications
Author :
Teipen, Brian ; Eiselt, Nicklas ; Dochhan, Annika ; Griesser, Helmut ; Eiselt, Michael ; Elbers, Jorg-Peter
Author_Institution :
ADVA Opt. Networking, Norcross, GA, USA
Abstract :
Optical four-level pulse amplitude modulation (PAM-4) is being widely studied for various short-reach optical interfaces, motivated by the need to keep cost structure low, and to increase link capacity despite various constraints in component bandwidth. When considering PAM-4 in applications with reach significantly greater than 10 km, such as in extended data center interconnects which require optical amplification, impairments such as chromatic dispersion, optical filtering, and ASE must be controlled. We investigate and report on requirements of PAM-4 for extended-reach, data center interconnect links.
Keywords :
computer centres; optical fibre communication; optical interconnections; optical modulation; pulse amplitude modulation; PAM-4; data center interconnect application; link capacity; optical amplification; optical four-level pulse amplitude modulation; short-reach optical interface; Equalizers; Integrated optics; Optical filters; Optical noise; Optical polarization; Optical pulses; Optical receivers; PAM-4 modulation; data center interconnect; fiber optics communications;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193371
