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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.)

Controlled stacking of graphene monolayer saturable absorbers for ultrashort pulse generation in erbium-doped fiber lasers

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Author(s):
Rosa, Henrique G. ; Castaneda, Juan A. ; Brito Cruz, Carlos H. ; Padilha, Lazaro A. ; Gomes, Jose C. V. ; Thoroh de Souza, Eunezio A. ; Fragnito, Hugo L.
Total Authors: 7
Document type: Journal article
Source: OPTICAL MATERIALS EXPRESS; v. 7, n. 7, p. 2528-2537, JUL 1 2017.
Web of Science Citations: 3
Abstract

Stacked chemical-vapour deposited (CVD) graphene monolayer samples were fabricated and applied as saturable absorbers in erbium-doped fiber laser (EDFL). Transient absorption experiments show that at the saturation absorption regime, and regardless the number of stacked layers (from 1 to 5 layers), samples present 1 ps recovery time. Pulses with duration from 0.60 to 1.17 ps were generated in an EDFL, depending on the number of graphene layers (i.e., the linear optical absorption) used. The results show that it is possible to increase the linear optical absorption of a graphene stacking without affecting its nonlinear optical behavior and ultrafast response time. Therefore, by stacking individual CVDmonolayer graphene samples it is possible to control the optical properties in graphene-based EDFLs and simultaneously tune their ultra-short pulse generation. (C) 2017 Optical Society of America. (AU)

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: 12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration
Grantee:Antônio Hélio de Castro Neto
Support type: Research Projects - SPEC Program
FAPESP's process: 13/16911-2 - Advanced spectroscopy of novel nanomaterials
Grantee:Lázaro Aurélio Padilha Junior
Support type: Research Grants - Young Investigators Grants
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