TY - GEN
T1 - Optical PAM-4 generation through polarization multiplexing in single-polarization single-mode VCSELs
AU - Iliadis, Nikos
AU - Kanakis, Giannis
AU - Argyris, Nikolaos
AU - Spatharakis, Christos
AU - Bakopoulos, Paraskevas
AU - Avramopoulos, Hercules
AU - Spiga, Silvia
AU - Amann, Marcus Christian
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - PAM-4 modulation is considered a key enabler for scaling capacity in datacenter networks, due to its bandwidth efficiency and implementation simplicity. We propose a novel technique for optical generation of four-level signals by means of polarization multiplexing, leveraging the single-polarization operation of a double-mesa single-mode VCSEL with 20.5 GHz 3-dB bandwidth. The scheme obviates the need for linear electronic drivers and circumvents the requirement for driving the VCSEL in its linear regime. Experimental results verify the scheme, exhibiting BER within FEC standards at 28 Gb/s. Comparison with an electrical PAM-4 modulated VCSEL demonstrates superior performance of the proposed concept.
AB - PAM-4 modulation is considered a key enabler for scaling capacity in datacenter networks, due to its bandwidth efficiency and implementation simplicity. We propose a novel technique for optical generation of four-level signals by means of polarization multiplexing, leveraging the single-polarization operation of a double-mesa single-mode VCSEL with 20.5 GHz 3-dB bandwidth. The scheme obviates the need for linear electronic drivers and circumvents the requirement for driving the VCSEL in its linear regime. Experimental results verify the scheme, exhibiting BER within FEC standards at 28 Gb/s. Comparison with an electrical PAM-4 modulated VCSEL demonstrates superior performance of the proposed concept.
KW - optical interconnects
KW - polarization division multiplexing
KW - quaternary pulse-amplitude modulation (PAM-4)
KW - vertical cavity surface emitting lasers
UR - http://www.scopus.com/inward/record.url?scp=85015312144&partnerID=8YFLogxK
U2 - 10.1109/ICECS.2016.7841207
DO - 10.1109/ICECS.2016.7841207
M3 - Conference contribution
AN - SCOPUS:85015312144
T3 - 2016 IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016
SP - 360
EP - 363
BT - 2016 IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016
Y2 - 11 December 2016 through 14 December 2016
ER -