Explaining simultaneous dual-band carbon nanotube mode-locking Erbium-doped fiber laser by net gain cross section variation

Autor(es)

Rosa, Hemique G. ^[1] ; Steinberg, David ^[1] ; Thoroh de Souza, Eunezio A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Prebiteriana Mackenzie, MackGraphe Graphene & Nanomat Res Ctr, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Optics Express; v. 22, n. 23, p. 28711-28718, NOV 17 2014.
• Citações Web of Science: 6

Resumo

In this paper we report the pulse evolution of a simultaneously mode-locked Erbium-doped fiber laser at 1556-nm-band and 1533-nm-band. We explain the dual wavelength laser operation by means of net gain cross section variations caused by the population inversion rate dependence on the pump power. At 1556-nm-band, we observed pulse duration of 370 fs with bandwidth of 8.50 nm and, for pump power higher than 150 mW, we observe the rise of a CW and mode-locked laser, sequentially, at 1533-nm-band. We show that both bands are simultaneously mode-locked and operate at different repetition rates. (C) 2014 Optical Society of America (AU)

• Processo FAPESP: 10/19085-8 - Estudo das propriedades ópticas do grafeno e sua aplicação como absorvedor saturável em lasers à fibra dopada com érbio
• Beneficiário: Henrique Guimarães Rosa
• Modalidade de apoio: Bolsas no Brasil - Doutorado