Near-IR emission in Pr(3+)single doped and tunable near-IR emission in Pr3+/Yb3+ codoped tellurite tungstate glasses for broadband optical amplifiers

Author(s)

Belancon, Marcos P. ^{[1, 2]} ; Marconi, Jorge D. ^{[3, 1]} ; Ando, Mariana F. ^{[3, 1]} ; Barbosa, Luiz C. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Opt & Photon Res Ctr CEPOF, BR-13083859 Campinas, SP - Brazil

^[2] Univ Tecnol Fed Parana, Dept Fis, Pato Branco, PR - Brazil

^[3] Univ Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, Santo Andre, SP - Brazil

• Document type: Journal article
• Source: Optical Materials; v. 36, n. 6, p. 1020-1026, APR 2014.
• Web of Science Citations: 35

Abstract

A study of the broadband near-infrared emission in Pr3+ single doped and Pr3+/Yb3+ codoped tellurite-tungstate glasses for optical amplification is presented. In the Pr3+ single doped samples pumped at 474 nm the emission band at 1480 nm presents a FWHM of similar to 140 nm. The Yb3+ addition produces a FWHM broadening up to 155 nm, achieved through the (1)G(4)-H-3(5) transition. The emission spectra when the codoped sample is pumped at 980 nm shows efficient energy transfer from Yb3+ to Pr3+ resulting in an intense Pr3+ emission around 1330 nm. This shows that changing the pump wavelength it is possible to select the D-1(2)-(1)G(4) or the (1)G(4)-H-3(5) transition, displacing the emission band from similar to 1480 to similar to 1330 nm. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 05/51689-2 - Optics and Photonics Research Center at UNICAMP
• Grantee: Hugo Luis Fragnito
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
• FAPESP's process: 09/54066-7 - Multi-User Laboratory for Advanced Optical Spectroscopy
• Grantee: Yoshitaka Gushikem
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 08/57857-2 - Photonics for optical communications
• Grantee: Hugo Luis Fragnito
• Support Opportunities: Research Projects - Thematic Grants