Patents Assigned to DÄTWYLER FIBER OPTICS SA
  • Method for Fabricating an Optical Fiber, Preform for Fabricating an Optical fiber, Optical Fiber and Apparatus
    Publication number: 20070220924
    Abstract: The method for fabricating an optical fiber comprises the steps of inserting a primary optical fiber preform (11) having a first primary axis (x1) and an outer surface (111) into an overcladding tube (12) having a second primary axis (x2) and an inner surface (120), so that said outer surface and inner surface define an interior space (15); holding the primary preform (11) in a centrally inserted position within the overcladding tube (12) with said first and second primary axes (x1, x2) in substantial alignment with each other; supplying overcladding grain (13) into the interior space (15) that is limited at the lower end of the overcladding tube (12) by means of a closure (125); generating a condition of reduced pressure within the interior space (15) that is limited at the upper end of the overcladding tube (12) by means of an adjoiner (3), which holds the primary optical fiber preform (11) and the overcladding tube (12) in position; and heating the unprocessed secondary preform (1), that consists of the pr
    Type: Application
    Filed: February 22, 2005
    Publication date: September 27, 2007
    Applicant: DÄTWYLER FIBER OPTICS SA
    Inventor: Carlos Pedrido
  • Method for Fabricating an Optical Fiber, Preform for Fabricating an Optical Fiber, Optical Fiber and Apparatus
    Publication number: 20070214841
    Abstract: The method for fabricating an optical fiber comprises the steps of inserting a primary optical fiber preform (11) having a first primary axis (x1) and an outer surface (111) into an overcladding tube (12) having a second primary axis (x2) and an inner surface (120), so that said outer surface and inner surface define an interior space (15); holding the primary preform (11) in a centrally inserted position within the overcladding tube (12) with said first and second primary axes (x1, x2) in substantial alignment with each other; supplying overcladding grain (13) into the interior space (15) that is limited at the lower end of the overcladding tube (12) by means of a closure (125); generating a condition of reduced pressure within the interior space (15) that is limited at the upper end of the overcladding tube (12) by means of an adjoiner (3), which holds the primary optical fiber preform (11) and the overcladding tube (12) in position; and heating the unprocessed secondary preform (1), that consists of the pr
    Type: Application
    Filed: April 7, 2004
    Publication date: September 20, 2007
    Applicant: DÄTWYLER FIBER OPTICS SA
    Inventor: Carlos Pedrido