Chirp management in silicon-graphene electro absorption modulators | Zendy

Vito Sorianello | Zendy; G. Contestabile | Zendy; M. Midrio | Zendy; Marianna Pantouvaki | Zendy; I. Asselbergs | Zendy; Joris Van Campenhout | Zendy; C. Huyghebaerts | Zendy; A. D’Errico | Zendy; Paola Gallì | Zendy; M. Romagnoli | Zendy

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Chirp management in silicon-graphene electro absorption modulators

Author(s) -

Vito Sorianello,

G. Contestabile,

M. Midrio,

Marianna Pantouvaki,

I. Asselbergs,

Joris Van Campenhout,

C. Huyghebaerts,

A. D’Errico,

Paola Gallì,

M. Romagnoli

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.019371

Subject(s) - chirp , optics , graphene , materials science , dispersion (optics) , signal (programming language) , polarization mode dispersion , single mode optical fiber , optoelectronics , optical fiber , physics , computer science , laser , programming language , nanotechnology

We study the frequency chirp properties of graphene-on-silicon electro-absorption modulators (EAMs). By experimentally measuring the chirp of a 100 µm long single layer graphene EAM, we show that the optoelectronic properties of graphene induce a large positive linear chirp on the optical signal generated by the modulator, giving rise to a maximum shift of the instantaneous frequency up to 1.8 GHz. We exploit this peculiar feature for chromatic-dispersion compensation in fiber optic transmission thanks to the pulse temporal lensing effect. In particular, we show dispersion compensation in a 10Gb/s transmission experiment on standard single mode fiber with temporal focusing distance (0-dB optical-signal-to-noise ratio penalty) of 60 km, and also demonstrate 100 km transmission with a bit error rate largely lower than the conventional Reed-Solomon forward error correction threshold of 10 -3 .

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