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Proceedings Paper

Use of CsCl to enhance the glass stability range of tellurite glasses for Er3+ doped optical fiber drawing
Author(s): Carmen Rosa Eyzaguirre; Eugenio Rodriguez; Enver Fernandez Chillcce; Sérgio Paulo Amaral Osório; Carlos Lenz Cesar; Italo Odone Mazali; Oswaldo Luiz Alves; Luiz Carlos Barbosa
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Paper Abstract

Tellurite glasses are important as a host of Er3+ ions because of their great solubility and because they present broader gain bandwidths than Er3+-doped silica, with promise to increase the bandwidth of communication systems. However, the small glass stability range (GSR) of tellurite glasses compromises the quality of the optical fibers. We show that the addition of CsCl to tellurite glasses can increase their GSR, making it easier to draw good quality optical fibers. CsCl acts as a network modifier in glass systems, weakening the network by forming Te-Cl bonds. We show that the thermal expansion coefficient mismatch is in the right direction for optical fiber fabrication purposes and that the Bi2O3 content can be used to control the refractive index of clad and core glasses. Single-mode and multi-mode Er3+-doped optical fibers were produced by the rod-in-tube method using highly homogeneous TeO2-ZnO-Li2O-Bi2O3-CsCl glasses. Far infrared spectra of the glass samples exhibit absorption bands of the Te-Cl bond.

Paper Details

Date Published: 20 February 2007
PDF: 8 pages
Proc. SPIE 6469, Optical Components and Materials IV, 646915 (20 February 2007); doi: 10.1117/12.700184
Show Author Affiliations
Carmen Rosa Eyzaguirre, Univ. Estadual de Campinas (Brazil)
Eugenio Rodriguez, Univ. Estadual de Campinas (Brazil)
Enver Fernandez Chillcce, Univ. Estadual de Campinas (Brazil)
Sérgio Paulo Amaral Osório, Univ. Estadual de Campinas (Brazil)
Carlos Lenz Cesar, Univ. Estadual de Campinas (Brazil)
Italo Odone Mazali, Univ. Estadual de Campinas (Brazil)
Oswaldo Luiz Alves, Univ. Estadual de Campinas (Brazil)
Luiz Carlos Barbosa, Univ. Estadual de Campinas (Brazil)


Published in SPIE Proceedings Vol. 6469:
Optical Components and Materials IV
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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