Synthesis and characterization of chalcogenide glasses from the system Ga–Ge–Sb–S and preparation of a single-mode fiber at 1.55 μm
- 作者：J. Troles ; Y. Niu ; C. Duverger-Arfuso ; F. Smektala ; L. Brill ; V. Nazabal ; V. Moizan ; F. Desevedavy ; P. Houizot
- 关键词：A. Chalcogenides ; A. Glasses ; A. Optical materials ; D. Optical properties
- 刊名：Materials Research Bulletin
- 出版年：2008
- 期刊代码：60_00255408
- 类别：ms
- 出版时间：1 April 2008
- 卷：43
- 期：4
- 页码：976-982
- 文件大小：571 K
摘要
The aim of this work is to study different compositions in the Ga–Ge–Sb–S system for the definition of two compositions compatible with the elaboration of a single-mode fiber at the 1.55 μm telecom wavelength. The variations of the glass transition temperature (Tg), the dilatation coefficient (
) and the refractive index (n) have been studied for two glasses series: GaxGe25−xSb10S65 (series 1), Ga5Ge25−xSb10S60+x (series 2). This study has lead to the choice of the Ga4Ge21Sb10S65 composition as clad glass for the preparation of the single-mode fiber and Ga5Ge20Sb10S65 composition as the core. The discrepancies for the studied parameters between the core and clad compositions are the following: Δ < 2%, ΔTg < 3%and Δn = 5 × 10−3. Finally a single-mode fiber has been prepared by the rod in tube technique.
) and the refractive index (n) have been studied for two glasses series: GaxGe25−xSb10S65 (series 1), Ga5Ge25−xSb10S60+x (series 2). This study has lead to the choice of the Ga4Ge21Sb10S65 composition as clad glass for the preparation of the single-mode fiber and Ga5Ge20Sb10S65 composition as the core. The discrepancies for the studied parameters between the core and clad compositions are the following: Δ < 2%, ΔTg < 3%and Δn = 5 × 10−3. Finally a single-mode fiber has been prepared by the rod in tube technique.