Title:
【発明の名称】エルビウム添加石英の製造方法
Document Type and Number:
Japanese Patent JP2766420
Kind Code:
B2
Abstract:
A manufacturing method for erbium doped silica, having a soot formation process, in which a silica glass soot is deposited on a seed rod for forming a soot preform in a porous state on the seed rod, a dopant impregnation process, wherein the soot preform is impregnated with at least an erbium compound, and a preform formation process, wherein this soot preform impregnated with a dopant is heated and rendered transparent. The dopant impregnation process is provided with an operation in which the soot preform obtained in the soot formation process is dipped in a solution containing an erbium compound, an aluminum compound, and a phosphorus compound; this is then desiccated, and soot preform which is impregnated with the erbium compound, the aluminum compound, and the phosphorus compound is obtained.
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Inventors:
TANAKA TAIICHIRO
WADA AKIRA
SAKAI TETSUYA
NOZAWA TETSUO
YAMAUCHI RYOZO
WADA AKIRA
SAKAI TETSUYA
NOZAWA TETSUO
YAMAUCHI RYOZO
Application Number:
JP8566492A
Publication Date:
June 18, 1998
Filing Date:
April 07, 1992
Export Citation:
Assignee:
FUJIKURA KK
International Classes:
C03B8/04; C03B20/00; C03B37/014; C03C13/04; G02B6/00; (IPC1-7): C03B8/04; C03B20/00; C03B37/014
Domestic Patent References:
| JP3252320A |
Attorney, Agent or Firm:
Masatake Shiga