Special pure germanium-rich Ga-Ge-As-Se glasses for active mid-IR fiber optics

被引：26

作者：

Shiryaev, V. S. ^{[1
]}

Karaksina, E. V. ^{[1
]}

Churbanov, M. F. ^{[1
]}

Kotereva, T. V. ^{[1
]}

Stepanov, B. S. ^{[1
]}

Ketkova, L. A. ^{[1
]}

Evdokimov, I. I. ^{[1
]}

Koltashev, V. V. ^{[2
]}

Plotnichenko, V. G. ^{[2
]}

Filatov, A. I. ^{[1
]}

Antonov, I. N. ^{[3
]}

机构：

[1] Russian Acad Sci, GG Devyatykh Inst Chem High Pur Subst, 49 Tropinin Str, Nizhnii Novgorod 603951, Russia

[2] Russian Acad Sci, Fiber Opt Res Ctr, 38 Vavilov Str, Moscow 119333, Russia

[3] Lobachevsky State Univ Nizhny Novgorod, Res Inst Phys & Technol, 23 Gagarin Ave, Nizhnii Novgorod 603950, Russia

来源：

MATERIALS RESEARCH BULLETIN | 2018年 / 107卷

基金：

俄罗斯科学基金会;

关键词：

Chalcogenide Ga-Ge-As-Se glasses; Preparation; Transmission; Microstructure; Refractive index; Fiber; PURITY CHALCOGENIDE GLASSES; REFRACTIVE-INDEX; THIN-FILMS; SYSTEM; RANGE; TRANSMISSION; IMPURITIES; BEHAVIOR; AS2SE3; RAMAN;

D O I：

10.1016/j.materresbull.2018.08.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Special pure Ga(x)Ge(25)A(1.5)Se(60-x) (x = 0; 1; 2; 3; 4; 5) glasses were prepared using various methods for purification of the glass-forming melt. The glasses are characterized by high transparency in the spectral range 0.8-15 mu m, low impurity content, high glass transition temperature ( > 320 degrees C), and low tendency to crystallization. The microstructure, the transmission range edges, the optical band-gap energy, and the linear refractive index of the glasses are studied. The refractive index of Ga(x)Ge(25)A(1.5)Se(60-x) (x = 0 divided by 5) glasses measured by ellipsometry increases with the substitution of selenium by gallium. It is for the first time that a single-index Ga3Ge25As15Se57 glass fiber was fabricated, its minimum optical loss was about 0.6 dB/m at a wavelength of 6.7 mu m. High-purity germanium-rich Ga-Ge-As-Se glasses were shown to be a promising material for active mid-IR fiber optics.

引用

页码：430 / 437

页数：8

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