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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.)

Efficient graphene saturable absorbers on D-shaped optical fiber for ultrashort pulse generation

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Zapata, J. D. [1, 2] ; Steinberg, D. [1] ; Saito, L. A. M. [1] ; de Oliveira, R. E. P. [1] ; Cardenas, A. M. [2] ; Thoroh de Souza, E. A.
Total Authors: 6
[1] Univ Prebiteriana Mackenzie, MackGraphe Graphene & Nanomat Res Ctr, Sao Paulo, SP - Brazil
[2] Univ Antioquia, Medellin - Colombia
Total Affiliations: 2
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 6, FEB 9 2016.
Web of Science Citations: 36

We demonstrated a method to construct high efficiency saturable absorbers based on the evanescent light field interaction of CVD monolayer graphene deposited on side-polished D-shaped optical fiber. A set of samples was fabricated with two different core-graphene distances (0 and 1 mu m), covered with graphene ranging between 10 and 25 mm length. The mode-locking was achieved and the best pulse duration was 256 fs, the shortest pulse reported in the literature with CVD monolayer graphene in EDFL. As result, we find a criterion between the polarization relative extinction ratio in the samples and the pulse duration, which relates the better mode-locking performance with the higher polarization extinction ratio of the samples. This criterion also provides a better understanding of the graphene distributed saturable absorbers and their reproducible performance as optoelectronic devices for optical applications. (AU)

FAPESP's process: 15/11779-4 - Plasmonic and nonlinear effects in graphene coupled to optical waveguides
Grantee:Christiano José Santiago de Matos
Support type: Research Projects - Thematic Grants
FAPESP's process: 12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration
Grantee:Antonio Helio de Castro Neto
Support type: Research Projects - SPEC Program
FAPESP's process: 15/12716-6 - Recent progress in graphene (and two-dimensional materials) research
Grantee:Lúcia Akemi Miyazato Saito
Support type: Research Grants - Meeting - Abroad