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    • 6. 发明授权
    • Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber
    • 具有变形的第一包层,光纤用基材和光纤的光纤用基材的制造方法
    • US06681074B1
    • 2004-01-20
    • US09670019
    • 2000-09-26
    • Jun AbeNobuyasu MantokuShinji MakikawaSeiki Ejima
    • Jun AbeNobuyasu MantokuShinji MakikawaSeiki Ejima
    • G02B628
    • C03B37/01231C03B37/01225C03B37/01228C03B2203/12C03B2203/22G02B6/0283G02B6/03633Y02P40/57
    • There is disclosed a method for producing a base material for optical fiber having a deformed first clad consisting of at least a core, a first clad and a second clad, comprising a step of deforming a shape of a section of the first clad so that it may have at least one linear part when the first clad is formed around the core, a step of depositing porous glass fine particles as the second clad made of the same material as that of the first clad on a glass rod having the deformed first clad to form a porous glass base material, and a step of forming the second clad having a round section by vitrifying it. There can be provided a method for producing a base material for optical fiber wherein a lot of breakages or cracks on the surface of the base material can be prevented in a step of depositing porous glass fine particles for the second clad on the first clad, and base material for optical fiber having no defects, and an optical fiber having an efficient effect of being excited with excitation light.
    • 公开了一种用于制造光纤基材的方法,该基材具有由至少芯部,第一包层和第二包层构成的变形的第一包层,包括使第一包层的部分的形状变形的步骤, 当在芯周围形成第一包层时,可以具有至少一个直线部分;在具有变形的第一包层的玻璃棒上沉积多孔玻璃微粒作为由与第一包层相同的材料制成的第二包层的步骤 形成多孔玻璃基材,以及通过玻璃化形成具有圆形部分的第二包层的步骤。 可以提供一种用于制造光纤基材的方法,其中在在第一包层上沉积用于第二包层的多孔玻璃微粒的步骤中可以防止在基材表面上发生大量断裂或裂纹,以及 没有缺陷的光纤的基材,以及具有被激发光激发的有效效果的光纤。
    • 9. 发明授权
    • Method for making an optical waveguide substrate
    • 制造光波导基板的方法
    • US06436728B2
    • 2002-08-20
    • US09836272
    • 2001-04-18
    • Shinji MakikawaHiroshi AoiMasaaki ShirotaSeiki Ejima
    • Shinji MakikawaHiroshi AoiMasaaki ShirotaSeiki Ejima
    • H01L2100
    • C30B29/06C30B33/005
    • A method of making a high quality optical waveguide substrate is provided, in which the surface of a silicon substrate is oxidized through relatively large thickness and no foreign matter particles are adhered on the surface thereof. The silicon substrate to form a quartz film for the optical waveguide is mounted on a carbon contained ceramics sample base and is inserted into a carbon contained ceramics furnace core tube of which its external circumference is arranged in a heating furnace. When the inside of the furnace core tube is heated to 200 to 600° C. by the heating furnace, an oxidant gas for the silicon substrate surface is introduced, then by further heating up to 1200 to 1350° C., the silicon surface is thus oxidized.
    • 提供一种制造高质量光波导基板的方法,其中硅基板的表面被相对较大的厚度氧化,并且在其表面上没有附着异物颗粒。 将用于形成光波导的石英膜的硅基板安装在含碳的陶瓷样品基底上,并插入其外周设置在加热炉中的含碳陶瓷炉芯芯管中。 当通过加热炉将炉芯管的内部加热至200至600℃时,引入用于硅衬底表面的氧化剂气体,然后进一步加热至1200至1350℃,硅表面为 从而氧化。