公开(公告)号：WO0220418A2

公开(公告)日：2002-03-14

申请号：PCT/US0120277

申请日：2001-06-26

Applicant: CORNING INC

Inventor： ANDERSON JAMES G ,  BRAND ERNEST E ,  ELLISON ADAM J G ,  TRENTELMAN JACKSON P

IPC: G02B6/00 ,  C03B37/023 ,  C03C13/04 ,  C03B37/02

CPC classification number: C03B37/023 ,  C03B2201/30 ,  C03C13/046

Abstract: The disclosed invention includes a method of making an optical fiber drawn from a multiple crucible. The method includes moving a first crucible of the multiple crucible relative to a second crucible of the multiple crucible. The invention also includes minimizing core and cladding diffusion. A tip of the first crucible is disposed axially above a tip of the second crucible by a preselected distance. The invention further includes the ability to alter a diameter of the core of the fiber. A differential pressure is applied to the first crucible. A positive differential pressure is applied to increase the core diameter. A negative differential pressure is applied to decrease the core diameter. Furthermore, the invention includes drawing the fiber under non-isothermal conditions.

Abstract translation: 所公开的发明包括制造从多个坩埚拉制的光纤的方法。 该方法包括相对于多个坩埚的第二坩埚移动多个坩埚的第一坩埚。 本发明还包括使芯和包层扩散最小化。 第一坩埚的尖端以预定的距离轴向设置在第二坩埚的尖端上方。 本发明还包括改变纤维芯的直径的能力。 对第一坩埚施加差压。 施加正的差压以增加芯径。 施加负差压以减小芯径。 此外，本发明包括在非等温条件下拉伸纤维。