公开(公告)号：JPH11171575A

公开(公告)日：1999-06-29

申请号：JP17197298

申请日：1998-06-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHANG KAI HUEI ,  KALISH DAVID ,  MILLER THOMAS J ,  PEARSALL MICHAEL L

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03C25/10 ,  C03C25/12 ,  G02B6/02 ,  G02B6/036

Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber having low optical transmission loss in the wavelength region of 1,200 to 1,600 nm and particularly at 1,385 nm, in the correlation of optical transmission loss with wavelengths of transmitted light and also to provide the production of the optical fiber. SOLUTION: This production comprises: forming a core rod 20 by a vapor- phase axial deposition method so as to have a (deposited clad)/core ratio (D/d ratio) of