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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Rosa, Henrique Guimaraes [1] ; Gomes, Jose Carlos Viana [2, 3] ; Thoroh de Souza, Eunezio A. [1]
Total Authors: 3
[1] Univ Prebiteriana Mackenzie, MackGraphe Graphene & Nanomat Res Ctr, BR-01302907 Sao Paulo - Brazil
[2] Natl Univ Singapore, Ctr Adv Mat 2D, Singapore 117542 - Singapore
[3] Natl Univ Singapore, Graphene Res Ctr, Singapore 117542 - Singapore
Total Affiliations: 3
Document type: Journal article
Source: 2D MATERIALS; v. 2, n. 3 SEP 2015.
Web of Science Citations: 10

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 two-dimensional (2D) exfoliated materials. (AU)

FAPESP's process: 12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration
Grantee:Antônio Hélio de Castro Neto
Support type: Research Projects - SPEC Program
FAPESP's process: 10/19085-8 - Study on optical properties of graphene and its aplication as saturable absorber in Erbium-doped fiber lasers
Grantee:Henrique Guimarães Rosa
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 12/07678-0 - Graphene fabrication and graphene doping for optical applications
Grantee:Henrique Guimarães Rosa
Support type: Scholarships abroad - Research Internship - Doctorate