Graphene-assisted nonlinear optical device for four-wave mixing based tunable wavelength conversion of QPSK signal | Zendy

Xiao Hu | Zendy; Mengqi Zeng | Zendy; Andong Wang | Zendy; Long Zhu | Zendy; Lei Fu | Zendy; Jian Wang | Zendy

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Graphene-assisted nonlinear optical device for four-wave mixing based tunable wavelength conversion of QPSK signal

Author(s) -

Xiao Hu,

Mengqi Zeng,

Andong Wang,

Long Zhu,

Lei Fu,

Jian Wang

Publication year - 2015

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.23.026158

Subject(s) - materials science , four wave mixing , optics , phase shift keying , wavelength , optoelectronics , graphene , energy conversion efficiency , nonlinear optics , bit error rate , physics , telecommunications , laser , computer science , channel (broadcasting) , nanotechnology

We fabricate a nonlinear optical device based on a fiber pigtail cross-section coated with a single-layer graphene grown by chemical vapor deposition (CVD) method. Using such graphene-assisted nonlinear optical device, we experimentally demonstrate tunable wavelength conversion of a 10 Gbaud quadrature phase-shift keying (QPSK) signal by exploiting degenerate four-wave mixing (FWM) progress in graphene. We study the conversion efficiency as functions of the pump power and pump wavelength and evaluate the bit-error rate (BER) performance. The observed optical signal-to-noise ratio (OSNR) penalties for tunable QPSK wavelength conversion are less than 2.2 dB at a BER of 1 × 10(-3).

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