Title:
【発明の名称】石英系光ファイバガラスの耐放射線処理方法
Document Type and Number:
Japanese Patent JP2542356
Kind Code:
B2
Abstract:
PURPOSE:To improve the radiation resistance of quartz glass for an optical fiber by exposing the glass to an atmosphere contg. hydrogen to bond hydrogen only to defects in the glass and to introduce a proper number of OH groups. CONSTITUTION:Glass for an optical fiber such as a molded body of quartz glass soot forming a porous glass base material for an optical fiber, a molded body of quartz glass forming a transparent glass base material for an optical fiber or a molded body of glass forming an optical fiber is exposed to an atmosphere contg. hydrogen to bond hydrogen only to defects in the glass and to introduce the irreducible minimum number of OH groups required. Thus, an optical fiber enduring a radiation environment is obtd.
Inventors:
Nishimura Masao
Katsumi Orimo
Mitsuo Koporu
Kazuaki Yoshida
Akira Iino
Motohiro Nakahara
Nobuo Inagaki
Katsumi Orimo
Mitsuo Koporu
Kazuaki Yoshida
Akira Iino
Motohiro Nakahara
Nobuo Inagaki
Application Number:
JP19794683A
Publication Date:
October 09, 1996
Filing Date:
October 22, 1983
Export Citation:
Assignee:
Furukawa Electric Co., Ltd.
Nippon Telegraph and Telephone Corporation
Nippon Telegraph and Telephone Corporation
International Classes:
C03C23/00; C03B37/014; C03B37/023; C03B37/027; C03C25/00; C03C25/10; C03C25/62; G02B6/00; G02B6/02; G02B6/44; (IPC1-7): C03C25/02; C03B37/023; G02B6/44
Domestic Patent References:
| JP5890601A | ||||
| JP5551729A |
Attorney, Agent or Firm:
Yoshio Saito