| Full text | |
| 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: | 4 |
| 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 Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 13/16911-2 - Advanced spectroscopy of novel nanomaterials |
| Grantee: | Lázaro Aurélio Padilha Junior |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 12/07678-0 - Graphene fabrication and graphene doping for optical applications |
| Grantee: | Henrique Guimarães Rosa |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration |
| Grantee: | Antonio Helio de Castro Neto |
| Support Opportunities: | Research Projects - SPEC Program |