4-PAM for high-speed short-range optical communications
Journal article, 2012
In this work, we compare 4-pulse amplitude
modulation and on–off keying modulation formats at high
speed for short-range optical communication systems. The
transmission system comprised a directly modulated verticalcavity
surface-emitting laser operating at a wavelength of
850 nm, an OM3Å multimode fiber link, and a photodetector
detecting the intensity at the receiver end. The modulation
formats were compared both at the same bit-rate and at the
same symbol rate. The maximum bit-rate used was 25 Gbps.
Propagation distances up to 600 m were investigated at
12.5 Gbps. All measurements were done in real time and
without any equalization.
Data communications
4-PAM
850 nm
MMF
VCSEL
Short range
OOK
Interconnects
Fiber-optical communications
IM/DD
Author
Krzysztof Szczerba
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Petter Westbergh
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Johnny Karout
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Johan Gustavsson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Åsa Haglund
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Magnus Karlsson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Peter Andrekson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Erik Agrell
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Anders Larsson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Journal of Optical Communications and Networking
1943-0620 (ISSN) 19430639 (eISSN)
Vol. 4 11 885-894 6360186Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
DOI
10.1364/JOCN.4.000885