Optical Injection-Locked Directly-Modulated Lasers for Dispersion Pre-compensated Direct-Detection Transmission

The growing traffic demand in inter-data center and metro communications requires high-speed and low-cost transceivers that can flexibly adapt to different transmission distances of up to a few hundred km. Ultimately low-cost transceivers will use the simplest optical hardware: namely a directly-mod...

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Bibliographic Details
Main Authors: Liu, Z, Hesketh, G, Kelly, B, O’Carroll, J, Phelan, R, Richardson, D, Slavik, R
Format: Article in Journal/Newspaper
Language:English
Published: Institute of Electrical and Electronics Engineers 2018
Subjects:
Optical transmitters
directly modulated laser
digital signal processing
Data center interconnection
metro networks
optical injection locking
pulse amplitude modulation (PAM)
DML
Online Access:https://discovery.ucl.ac.uk/id/eprint/10054623/7/Liu_08444650.pdf
https://discovery.ucl.ac.uk/id/eprint/10054623/
Description
Summary:The growing traffic demand in inter-data center and metro communications requires high-speed and low-cost transceivers that can flexibly adapt to different transmission distances of up to a few hundred km. Ultimately low-cost transceivers will use the simplest optical hardware: namely a directly-modulated transmitter and direct detection receiver. Using optical injection-locked directly-modulated lasers (OIL-DML), we propose a transmitter that can control the full field of the optical signal and achieve error-free transmission over up to 300 km of dispersion uncompensated SMF-28. We demonstrate such a transmission system and discuss its potential for short and medium reach communication systems.

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