Title:
低偏光モード分散特性を持つ光ファイバ
Document Type and Number:
Japanese Patent JP3599748
Kind Code:
B2
Abstract:
A method of manufacturing an optical fiber, whereby a fiber is drawn from a molten extremity of a preform and is subsequently subjected to a torque, thereby causing a portion of the fiber to be twisted about its longitudinal axis and to be endowed with a spin. The torque is applied by running the fiber between a pair of wheels which rotate in mutually opposite senses about two different rotational axes, each wheel having a peripheral curved surface, the wheels being thus arranged that the fiber runs substantially tangential to their curved surfaces and is pressed therebetween, the wheels being moved back and forth relative to one another in a direction substantially perpendicular to the fiber so as to cause the fiber to be rolled back and forth between their curved surfaces.
Inventors:
Gertman Robert Eugenio Marie
Application Number:
JP50893197A
Publication Date:
December 08, 2004
Filing Date:
August 12, 1996
Export Citation:
Assignee:
Plasma Optical Fiber Besloten Fennaught Shap
International Classes:
C03B37/027; C03B37/03; G02B6/02; G02B6/00; (IPC1-7): C03B37/027; G02B6/16
Domestic Patent References:
| JP6171970A | ||||
| JP5820746A | ||||
| JP5888135A |
Attorney, Agent or Firm:
Kosaku Sugimura
Junko Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Junko Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao