Patents Assigned to FURUKAWA ELECTRIC COL, LTD.
  • OPTICAL FIBER DRAWING METHODS AND DRAWING FURNACES
    Publication number: 20120192594
    Abstract: Drawing methods and drawing furnaces for drawing an optical fiber with small non-circularity by simple drawing system are provided. An optical fiber preform is received into a muffle tube and heated by a primary heater placed to surround the muffle tube. The optical fiber preform is heated such that a starting position of a meniscus portion is higher in its position than the top of the primary heater, wherein the meniscus portion is created at the bottom portion of the optical fiber preform.
    Type: Application
    Filed: March 2, 2012
    Publication date: August 2, 2012
    Applicant: FURUKAWA ELECTRIC COL, LTD.
    Inventors: Nobuaki ORITA, Takashi SUZUKI, Yoshiyuki SAKATA