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Linearisation Method of DML-based Transmitters for Optical Communications Part II: Experimental Demonstration and Implementation Methods

Accepted version
Peer-reviewed

Type

Article

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Authors

Cunningham, DG 

Abstract

In this paper, we report the first experimental demonstration of the Stretched A linearisation method. The theoretical framework of the method and related simulation studies have been presented in Part I of this work. Here, we apply the method on an 850 nm multimode vertical-cavity surface-emitting laser (VCSEL) specified for operation at 10 Gb/s and demonstrate good quality optical output waveforms with little non-linear distortion at 16 Gb/s using non-return-to-zero (NRZ) modulation. An experimental sensitivity analysis on the generation of the required modulating current components demonstrates large tolerance to parameter mismatch. In addition, it is shown that an adaptive gain scheme can improve the tolerance to the timing offset between the current components. Potential hardware implementations using either analog or digital electronics are also discussed.

Description

Keywords

Vertical cavity surface emitting lasers, Mathematical model, Current measurement, Data communication, Optical transmitters, Optical modulation, Optical fiber communication, Directly-modulated lasers, linearization method, non-linearity, optical links, optical transmitters, vertical cavity surface emitting lasers

Journal Title

Journal of Lightwave Technology

Conference Name

Journal ISSN

0733-8724
1558-2213

Volume Title

39

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Rights

All rights reserved
Sponsorship
EPSRC (via University of Leeds) (RG.ELEC.114773)
Engineering and Physical Sciences Research Council (EP/S016570/1)
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