Transfer of an exfoliated monolayer graphene flake onto an optical fiber end face for erbium-doped fiber laser mode-locking

Rosa H.G.; Gomes J.C.V.; De Souza E.A.T.

Transfer of an exfoliated monolayer graphene flake onto an optical fiber end face for erbium-doped fiber laser mode-locking

Tipo

Artigo

Data de publicação

2015

Periódico

2D Materials

Citações (Scopus)

27

Autores

Rosa H.G.
Gomes J.C.V.
De Souza E.A.T.

Resumo

© 2015 IOP Publishing Ltd.This paper presents, for the first time, the successful transfer of exfoliated monolayer graphene flake to the optical fiber end face and alignment to its core. By fabricating and optimizing a polymeric poly (methyl methacrylate) (PMMA) and polyvinyl alcohol (PVA) substrate, it is possible to obtain a contrast of up to 11% for green light illumination, allowing the identification of monolayer graphene flakes that were transferred to optical fiber samples and aligned to its core. With Raman spectroscopy, it is demonstrated that graphene flake completely covers the optical fiber core, and its quality remains unaltered after the transfer. The generation of mode-locked erbium-doped fiber laser pulses, with a duration of 672 fs, with a single-monolayer graphene flake as a saturable absorber, is demonstrated for the first time. This transfer technique is of general applicability and can be used for other twodimensional (2D) exfoliated materials.

Assuntos Scopus

Erbium doped fiber laser , Exfoliated graphene , Green light , Optical fiber cores , Poly (vinyl alcohol) (PVA) , Poly(methyl methacrylate) (PMMA) , Transfer , Transfer technique