摘要:
Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (d1) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.
摘要:
Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.
摘要翻译:公开了用于在平板显示装置中制造基板的玻璃。 该玻璃的密度小于约2.45gm / cm 3,液相线粘度大于约200,000泊,该玻璃主要由以下组成组成,以氧化物的摩尔百分数表示: 65-75 SiO 2,7-13 Al 2 O 3,5-15 B 2 O 3,0-3 MgO,5-15 CaO,0-5 SrO,并且基本上不含BaO。 眼镜也显示超过650°C的应变点。
摘要:
An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen-18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.
摘要翻译:提供了一种同位素改性的二氧化硅基光纤,其比传统的二氧化硅基光纤具有更低的损耗,更宽的带宽和更广泛的拉曼增益光谱特性。 更重,更不自然丰富的硅或氧的同位素代替较轻的,更自然的丰富的同位素,以将红外吸收转移到稍长的波长。 在一个实施方案中,氧-18至少在纤维的核心区域中替代天然丰富的氧-16。 所得到的同位素改变的光纤比常规光纤的损耗最小为0.044 dB / km,对于0.044-0.034 dB / km之间的损耗范围,宽带宽为17%。 纤维可以通过等离子体化学气相沉积技术容易地用常规纤维制造设备制造。 当在纤维的纤芯区域中进行氧-16取代氧-16的50%时,拉曼增益谱显着扩大。
摘要:
Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.
摘要翻译:公开了用于在平板显示装置中制造基板的玻璃。 玻璃的密度小于约2.45gm / cm 3,液相线粘度大于约200,000泊,该玻璃基本上由以下组成组成,以氧化物为基准的摩尔百分数表示:65-75SiO 2,7-13 Al 2 O 3,5-15B 2 O 3,0-3MgO,5-15 CaO,0-5 SrO,并且基本上不含BaO。 眼镜也显示超过650°C的应变点。
摘要:
Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.
摘要:
Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65–75 SiO2, 7–13 Al2O3, 5–15 B2O3, 0–3 MgO, 5–15 CaO, 0–5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.
摘要:
Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.
摘要翻译:公开了用于在平板显示装置中制造基板的玻璃。 该玻璃的密度小于约2.45gm / cm 3,液相线粘度大于约200,000泊,该玻璃基本上由以下组成组成,以氧化物的摩尔百分比表示:65-75SiO 2, 7-13 Al 2 O 3,5-15 B 2 O 3,0-3 MgO,5-15 CaO,0-5 SrO,并且基本上不含BaO。 眼镜也显示超过650°C的应变点。
摘要:
An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen -18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.
摘要翻译:提供了一种同位素改性的二氧化硅基光纤,其比传统的二氧化硅基光纤具有更低的损耗,更宽的带宽和更广泛的拉曼增益光谱特性。 更重,更不自然丰富的硅或氧的同位素代替较轻的,更自然的丰富的同位素,以将红外吸收转移到稍长的波长。 在一个实施方案中,氧-18至少在纤维的核心区域中替代天然丰富的氧-16。 所得到的同位素改变的光纤比常规光纤的损耗最小为0.044 dB / km,对于0.044-0.034 dB / km之间的损耗范围,宽带宽为17%。 纤维可以通过等离子体化学气相沉积技术容易地用传统的纤维制造设备制造。 当在纤维的核心区域中进行氧-18的氧-16取代为50%时,拉曼增益谱显着扩大。