Method for producing a bare fiber taper at a metallized fiber
    1.
    发明授权
    Method for producing a bare fiber taper at a metallized fiber 失效
    用于在金属化纤维上制造裸光纤锥形的方法

    公开(公告)号:US4622055A

    公开(公告)日:1986-11-11

    申请号:US746516

    申请日:1985-06-19

    摘要: A method for producing a bare fiber taper at a metallized fiber is disclosed and comprises the steps of softening and drawing in an arc of the fiber metallized by sputtering or vapor deposition. The softened metallized fiber thereby constricts and the metallized fiber becomes free of the metallization and, thus, bare over its entire circumference in the arising constriction as a consequence of the influence of the arc. The bare constriction produced in such fashion is parted and a tapering, bare end section thereby arising at one of the two metallized fiber halves produced by the parting can be employed as the bare fiber taper. A fiber taper with lens can be produced by fusing a lens to the bare end section.

    摘要翻译: 公开了一种在金属化纤维上制造裸光纤锥形的方法,包括以下步骤:通过溅射或气相沉积在金属化的纤维的电弧中软化和拉伸。 软化的金属化纤维因此受到限制,并且金属化纤维变得没有金属化,并且因此由于电弧的影响而在其出现的收缩部中在其整个圆周上露出。 以这种方式产生的裸露的收缩部分被分开,并且由分离产生的两个金属化纤维半部之一产生的渐缩的裸端部分可以用作裸纤维锥形。 具有透镜的纤维锥体可以通过将透镜熔合到裸端部来产生。

    Apparatus for the manufacture of constructions in fibers
    2.
    发明授权
    Apparatus for the manufacture of constructions in fibers 失效
    用于制造纤维结构的装置

    公开(公告)号:US4565558A

    公开(公告)日:1986-01-21

    申请号:US642583

    申请日:1984-08-20

    CPC分类号: G02B6/2552

    摘要: An apparatus for manufacturing constrictions in fibers characterized by a stretching device for stretching the fiber and a heating device for brief local heating of the stretched fiber to a softening temperature. To improve the reliability and reproducibility of the constrictions formed in the fiber, the stretching device includes an arrangement which limits the maximum stretching force applied to the fiber and includes two exactly aligned guide grooves, which are spaced apart with the heating means disposed therebetween, for positioning the fiber during the heating and stretching steps. To produce the exactly aligned guide grooves, the method includes providing a substrate having a rectilinear guide groove, securing the substrate on a support member and subsequently removing a center portion of the substrate to leave a pair of spaced substrate sections having the aligned grooves.

    摘要翻译: 一种用于制造纤维收缩的装置,其特征在于用于拉伸纤维的拉伸装置和用于将拉伸纤维简单局部加热至软化温度的加热装置。 为了提高在纤维中形成的收缩的可靠性和再现性,拉伸装置包括限制施加到纤维上的最大拉伸力的装置,并且包括两个精确对准的引导槽,该引导槽与设置在其间的加热装置间隔开,用于 在加热和拉伸步骤期间定位纤维。 为了产生精确对准的导向槽,该方法包括提供具有直线引导槽的基板,将基板固定在支撑构件上,随后移除基板的中心部分以留下具有对准槽的一对隔开的基板部分。

    Method for the manufacturing of a fiber with a tapered end having a
refractive lens

    公开(公告)号:US4589897A

    公开(公告)日:1986-05-20

    申请号:US704176

    申请日:1985-02-22

    IPC分类号: G02B6/25 G02B6/255 C03B21/06

    CPC分类号: G02B6/25 G02B6/2552

    摘要: A method for manufacturing a fiber taper with a refractive lens, said method comprising the steps of placing a fiber in an axial tension of a given amount; locally heating a portion of the fiber under tension to cause softening and the formation of a constriction in the fiber in the area of heating; removing the tension and continuing the heating to raise the temperature to a point at which the viscosity of the heated material is such that the surface tension causes a further constriction and a transverse separation of the fiber at the constriction; continuing the heating to form the desired curvature of the lens on the separated ends; and then after the desired curvature is formed, stopping the heating to enable the ends to cool and solidify.

    Optical polarizer having a prism
    4.
    发明授权
    Optical polarizer having a prism 失效
    具有棱镜的光学偏振器

    公开(公告)号:US4556292A

    公开(公告)日:1985-12-03

    申请号:US464586

    申请日:1983-02-07

    CPC分类号: G02B5/3066

    摘要: An optical polarizer for an optical isolator has a dove prism having a selected geometric shape such that both the incident and emerging beams satisfy the Brewster condition at the respective entrance and exit faces. A further embodiment of the invention consists of the combination of two dove prisms with an intervening multiple layer. The polarizer can be easily adjusted with no reduction in the coupling efficiency with incoming light, can be manufactured inexpensively, and exhibits no parallel offset or astigmatism.

    摘要翻译: 用于光学隔离器的光学偏振器具有具有选定几何形状的鸽子棱镜,使得入射光束和出射光束两者在相应入射面和出射面处满足布鲁斯特状态。 本发明的另一实施例由两个具有中间多层的鸽子棱镜的组合构成。 偏振器可以容易地调节,而不会降低与入射光的耦合效率,可以廉价地制造,并且不显示平行偏移或散光。