Title:
圧密中の光ファイバケーン/プレフォーム変形の削減
Document Type and Number:
Japanese Patent JP5249954
Kind Code:
B2
Abstract:
According to an embodiment of the invention a method of manufacturing optical fiber cane comprises the steps of: (i) providing a core rod manufactured of relatively low viscosity glass; (ii) depositing SiO2 based soot around the core rod to form a soot preform, the soot being of relatively high viscosity material such that the softening point of the low viscosity glass is at least 200° C. lower than the viscosity of the high viscosity outer core region; and (iii) consolidating the soot of the soot preform by exposure to hot zone at temperatures of 1000° C.-1600° C. The soot is consolidated by heating the outer portion of the soot preform at a relatively fast heating rate, the heating rate being sufficient to densify the soot, so as to render the densified material with enough rigidity to confine the heated core rod and to prevent the heated core rod from puddling.
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Inventors:
Balakrishnan, Gitendra
Canna, samil
Onu
Lanny, Sonya M
Tandon, Pushkar
Canna, samil
Onu
Lanny, Sonya M
Tandon, Pushkar
Application Number:
JP2009551683A
Publication Date:
July 31, 2013
Filing Date:
February 21, 2008
Export Citation:
Assignee:
CORNING INCORPORATED
International Classes:
C03B37/014; C03B37/018; C03C3/06
Domestic Patent References:
| JP61117127A | ||||
| JP2007513862A | ||||
| JP4325433A | ||||
| JP63236727A | ||||
| JP1219034A |
Foreign References:
| WO2005021455A2 |
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma
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