摘要:
A process for producing a preform for a chalcogenide glass fiber which comprises inserting a cladding tube having contained therein a chalcogenide glass rod for core into a quartz tube having at its bottom a nozzle having an aperture smaller than the outer diameter of the cladding tube, locally heating the bottom of the quartz tube and pulling the cladding tube having contained the glass rod for core and a process for producing a chalcogenide glass fiber by heating and drawing the preform thus obtained, by which processes the devitrification of glass and the generation of bubbles in the core glass or at the core glass-cladding glass interface can be prevented and the adhesion between the core glass and the cladding glass can be improved. In particular, when the glass material for core does not contain Ge, a chalcogenide glass fiber having such a core-cladding structure that the transmission loss of the glass fiber when infrared light pass through the fiber is small and the mechanical strength is high.
摘要:
This invention is directed broadly to transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, those glasses consisting essentially, expressed in terms of mole percent, of 40-80% Ga 2 S 3 , 0-35% RS x , wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, germanium, and indium, 1-50% Ln 2 S 3 , wherein Ln is at least one cation selected from the group consisting of a rare earth metal cation and yttrium, 1-45% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, and tin, and 0-10% total chloride and/or fluoride. Glass compositions consisting essentially, expressed in terms of mole percent, of 5-30% Ga 2 S 3 , 0-10% R 2 S 3 , wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, and indium, 55-94.5% GeS 2 , 0.5-25% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, potassium, silver, sodium, strontium, tin, yttrium, and a rare earth metal of the lanthanide series, 0-10% total selenide, 0-25% total chloride and/or fluoride, and wherein the sulfur and/or selenium content can vary between 85-125% of the stoichiometric value when doped with Pr demonstrate exceptionally high values of τ.
摘要:
This invention is directed broadly to transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, those glasses consisting essentially, expressed in terms of mole percent, of 40-80% Ga 2 S 3 , 0-35% RS x , wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, germanium, and indium, 1-50% Ln 2 S 3 , wherein Ln is at least one cation selected from the group consisting of a rare earth metal cation and yttrium, 1-45% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, and tin, and 0-10% total chloride and/or fluoride. Glass compositions consisting essentially, expressed in terms of mole percent, of 5-30% Ga 2 S 3 , 0-10% R 2 S 3 , wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, and indium, 55-94.5% GeS 2 , 0.5-25% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, potassium, silver, sodium, strontium, tin, yttrium, and a rare earth metal of the lanthanide series, 0-10% total selenide, 0-25% total chloride and/or fluoride, and wherein the sulfur and/or selenium content can vary between 85-125% of the stoichiometric value when doped with Pr demonstrate exceptionally high values of τ.
摘要翻译:本发明广泛地指向透射玻璃,其在电磁辐射光谱的红外区域内显示出极好的透射性,这些玻璃基本上以40-80%Ga 2 S 3,0-35%RS x表示的摩尔百分比表示,其中R是 至少一种选自铝,锑,砷,锗和铟的形成阳离子的阳离子,1-50%Ln 2 S 3,其中Ln是至少一种选自稀土金属阳离子和钇的阳离子, 1-45%MSx,其中M为选自钡,镉,钙,铅,锂,汞,钾,银,钠,锶,铊和锡中的至少一种改性金属阳离子,以及0-10 总氯化物和/或氟化物。 主要由摩尔百分比表示的5-30%Ga 2 S 3,0-10%R 2 S 3组成的玻璃组合物,其中R是至少一种选自铝,锑,砷和铟的形成网络的阳离子,55 -94.5%GeS2,0.5-25%MSx,其中M为至少一种选自钡,镉,钙,铅,锂,钾,银,钠,锶,锡,钇和钇的改性金属阳离子 镧系元素的稀土金属,0-10%的总硒化物,0-25%的总氯和/或氟化物,并且其中当掺杂Pr时,硫和/或硒含量可以在化学计量值的85-125%之间变化 表现出特别高的τ值。
摘要:
A process for producing a preform for a chalcogenide glass fiber which comprises inserting a cladding tube having contained therein a chalcogenide glass rod for core into a quartz tube having at its bottom a nozzle having an aperture smaller than the outer diameter of the cladding tube, locally heating the bottom of the quartz tube and pulling the preform compositing said cladding tube and glass rod for core through the nozzle of the said quartz tube. Also disclosed is a process for producing a chalcogenide glass fiber by heating and drawing the preform thus obtained, by which processes the devitrification of glass and the generation of bubbles in the core glass or at the core glass-cladding glass interface can be prevented and the adhesion between the core glass and the cladding glass can be improved. In particular, when the glass material for core does not contain Ge, a chalcogenide glass fiber having such a core-cladding structure that the transmission loss of the glass fiber when infrared light pass through the fiber is small and the mechanical strength is high.
摘要:
A process for producing a preform for a chalcogenide glass fiber which comprises inserting a cladding tube having contained therein a chalcogenide glass rod for core into a quartz tube having at its bottom a nozzle having an aperture smaller than the outer diameter of the cladding tube, locally heating the bottom of the quartz tube and pulling the preform compositing said cladding tube and glass rod for core through the nozzle of the said quartz tube. Also disclosed is a process for producing a chalcogenide glass fiber by heating and drawing the preform thus obtained, by which processes the devitrification of glass and the generation of bubbles in the core glass or at the core glass-cladding glass interface can be prevented and the adhesion between the core glass and the cladding glass can be improved. In particular, when the glass material for core does not contain Ge, a chalcogenide glass fiber having such a core-cladding structure that the transmission loss of the glass fiber when infrared light pass through the fiber is small and the mechanical strength is high.
摘要:
This invention is directed broadly to transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, those glasses consisting essentially, expressed in terms of mole percent, of 40-80% Ga₂S₃, 0-35% RS x , wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, germanium, and indium, 1-50% Ln₂S₃, wherein Ln is at least one cation selected from the group consisting of a rare earth metal cation and yttrium, 1-45% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, and tin, and 0-10% total chloride and/or fluoride. Glass compositions consisting essentially, expressed in terms of mole percent, of 5-30% Ga₂S₃, 0-10% R₂S₃, wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, and indium, 55-94.5% GeS₂, 0.5-25% MS x , wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, potassium, silver, sodium, strontium, tin, yttrium, and a rare earth metal of the lanthanide series, 0-10% total selenide, 0-25% total chloride and/or fluoride, and wherein the sulfur and/or selenium content can vary between 85-125% of the stoichiometric value when doped with Pr demonstrate exceptionally high values of τ.
摘要翻译:本发明广泛地涉及在电磁辐射光谱的远红外区域具有优异透射性的透明玻璃,这些玻璃基本上由40-80%Ga 2 S 3,0-35%RSx表示的摩尔百分比表示,其中R是 至少一种选自铝,锑,砷,锗和铟的形成阳离子的阳离子,1-50%Ln 2 S 3,其中Ln是至少一种选自稀土金属阳离子和钇的阳离子, 1-45%MSx,其中M为选自钡,镉,钙,铅,锂,汞,钾,银,钠,锶,铊和锡中的至少一种改性金属阳离子,以及0-10 总氯化物和/或氟化物。 主要由摩尔百分数表示的5-30%Ga 2 S 3,0-10%R 2 S 3(其中R是至少一个选自铝,锑,砷和铟的形成阳离子的网状物)的组合物,55 -94.5%GeS 2,0.5-25%MS x,其中M是至少一种选自钡,镉,钙,铅,锂,钾,银,钠,锶,锡,钇和钇的改性金属阳离子 镧系元素的稀土金属,0-10%的总硒化物,0-25%的总氯和/或氟化物,并且其中当掺杂Pr时,硫和/或硒含量可以在化学计量值的85-125%之间变化 表现出特别高的τ值。
摘要:
Infrarotdurchlässiges Zwei- oder Mehrkomponenten-Chalkogenid-glas auf Germanium- und Selengrundlage, das mit 0,05 bis 1,0 Atom-% mindestens eines der Erdalkalimetalle Calzium oder Strontium und/oder einer ihrer Verbindungen dotiert ist, zur Herstellung von optischen Fasern und optischen Elementen.