摘要:
Glass for use as an element of a Faraday rotator, consisting essentially of, by mol%, 10-30 Tb.sub.2 O.sub.3, 10-30 Al.sub.2 O.sub.3, and 30-80 SiO.sub.2 + B.sub.2 O.sub.3, with the proviso that SiO.sub.2 .gtoreq.15 and B.sub.2 O.sub.3 .gtoreq.10, and as optional components 0-5 ZrO.sub.2, 0-1 Sb.sub.2 O.sub.3, 0-1 As.sub.2 O.sub.3, and 0-2 AlF.sub.3. The glass has a large Verdet constant and a reduced absorption of light in the visible and infrared wavelength regions.
摘要翻译:用作法拉第旋转器的元件的玻璃,其摩尔%基本上由10-30 Tb 2 O 3,10-30 Al 2 O 3和30-80 SiO 2 + B 2 O 3组成,条件是SiO 2≥15和B 2 O 3> / = 10,作为任选的组分0-5 ZrO 2,0-1 Sb 2 O 3,0-1 As 2 O 3和0-2 AlF 3。 玻璃具有较大的Verdet常数,并减少了可见光和红外波长区域的光吸收。
摘要:
A process for producing a transparent glass product having a refractive index gradient by the molecular stuffing method is described. A thallium compound is used as a dopant and, after a concentration gradient of the thallium dopant is formed, the porous glass product is heated up to the temperature region of 350.degree. to 550.degree. C. at a temperature-rising rate of 25.degree. to 150.degree. C./hour in a reducing gas atmosphere and then heat treated above 550.degree. C. in an inert gas atmosphere to collapse micropores in the porous glass product, thereby obtaining a glass product having a refractive index gradient which is transparent and free of light-scattering and coloration. The glass product is suitable as materials (preforms) for optical fibers or materials for rod-shaped lenses, particularly rod-shaped microlenses for microlens arrays and microlenses for coupling an optical fiber and a light source.
摘要:
A sealing method for a laser glass which provides a high bonding strength comprising applying a powder mixture of (1) a low melting glass containing an infrared absorbing component and (2) a low expansion high melting glass containing an infrared absorbing component to a laser glass and welding the powder mixture to the laser glass by heating.
摘要:
A Faraday rotation glass comprising, in mole %,______________________________________ P.sub.2 O.sub.5 5 to 30% where up to 5/6 on a molar basis of the P.sub.2 O.sub.5 can be replaced by B.sub.2 O.sub.3 ; TbF.sub.3 11.4 to 45%; AlF.sub.3 0 to 25%; and RF at least 40% ______________________________________ where RF includes at least 3% BaF.sub.2, 0 to 64% MgF.sub.2, 0 to 32% NaF, 0 to 40% SrF.sub.2, 0 to 26% CaF.sub.2, 0 to 20% LiF and 0 to 20% KF.
摘要翻译:一种法拉第旋转玻璃可以用B 2 O 3代替,摩尔%的P 2 O 5为5-30%,其中高达5/6摩尔的P 2 O 5。 -TbF3 11.4〜45%; -AlF 3 0〜25%; 和-RF至少40% - 其中RF包括至少3%的BaF 2,0至64%的MgF 2,0至32%的NaF,0至40%的SrF 2,0至26%的CaF 2,0至20%的LiF和0至20 %KF。
摘要:
A sealing method for a laser glass which provides a high bonding strength comprising applying a powder mixture of (1) a low melting glass for sealing a glass laser and (2) a glass having a higher melting point and lower expansion coefficient than those of the low melting glass, to a laser glass and welding the powder mixture to the laser glass by heating.
摘要:
A process for producing a soft aperture filter having high acid and heat resistance as well as a desired colored layer thickness comprising heat-treating a glass, having a base composition of 55 to 72 mole percent SiO.sub.2, 15 to 35 mole percent Na.sub.2 O, 0 to 5 percent di-valent oxides other than ZnO, 4 to 15 mole percent ZnO, and 0 to 5 mole percent Al.sub.2 O.sub.3 with Sb.sub.2 O.sub.3 and/or As.sub.2 O.sub.3 additionally present in an amount of 2 to 5 weight percent of the base composition, in a fused bath containing 14 to 60 mole percent of a silver salt, and optionally with NaNO.sub.3 and/or Na.sub.2 SO.sub.4.
摘要翻译:一种生产具有高耐酸性和耐热性的软孔过滤器以及所需着色层厚度的方法,包括热处理玻璃,其基本组成为55至72摩尔%SiO 2,15至35摩尔%Na 2 O,0至 在氧化锌中的5%的二价氧化物,4至15摩尔%的ZnO和0至5摩尔%的Al 2 O 3与Sb 2 O 3和/或As 2 O 3以基础组合物的2至5重量%的量存在于熔融浴中 含有14至60摩尔%的银盐,以及任选地含有NaNO 3和/或Na 2 SO 4。
摘要:
A non-crystalline substance for use in an optical memory device which consists of an As-Se system non-crystalline material and the additional third component(s) Zn, Au, or Ag and/or Cu. The substance is characterized by its transmission ability in the visible region as well as in the I.R. region and its extreme reduction of transmittance upon irradiation with, e.g., a laser beam.
摘要:
The refractive index distribution in refractive index distribution lenses may be adjusted to better approach an ideal by heating the refractive index distribution lens. When the refractive index distribution lens was created by diffusion of refractive index changing ions into a body, further heating in an environment in which no additional ions can diffuse into the body causes further migration of ions within the body so that its refractive index distribution approaches an ideal.
摘要:
A buried wave guide device is produced by immersing a phosphate glass containing exchangeable ions in a molten salt. Ions are exchanged from the phosphate glass to give a wave guide whose refractive index increases sharply from a first surface to a maximum at a depth below the first surface then decreases gradually in the direction of the opposite surface.
摘要:
A uniform refractive index-type glass is prepared by ion exchange in which a glass containing ions of a first type is immersed in a molten salt containing ions of a second type, the ions in the molten salt having a higher refractive index than the ions in the glass. The glass is removed from the molten salt at a predetermined point and before the saturation point or equilibrium and the ion distribution becomes uniform throughout the glass. The concentration of first and second ions is not uniform from the center of the glass to its outer surface. The glass is next heated to make the concentrations of the first and second ions substantially uniform throughout the glass from the center to the outer surface. Optionally, this glass is then immersed in a molten salt containing a third type of ion having a lower refractive index than the second ion for exchange with part of the ions in the second type. A gradient refractive index-type glass in which the concentration of the second type of ions decreases parabolically from the center of the glass to the outer surface while the concentration of the third type of ions increases parabolically from the center of the glass to the outer surface.