04941905 is referenced by 11 patents and cites 26 patents.

An optical preform is prepared first by depositing soot about a glass subate rod (22) to form a boule. Then the soot boule is sintered to consolidate the material and provide a preform from which optical fiber is drawn. The boule is relatively large so that the resulting preform is capable of providing more optical fiber than those used in the past. In order to be able to sinter successfully the enlarged boule, microwave energy from a furnace (60) is coupled to the glass rod so that the sintering proceeds from the rod radially outwardly thereby allowing gases readily to escape and rendering the process highly efficient.

Title
Methods of soot overcladding an optical preform
Application Number
6902272
Publication Number
4941905
Application Date
March 4, 1988
Publication Date
July 17, 1990
Inventor
Pundi L Narasimham
Norcross
GA, US
Agent
Edward W Somers
Assignee
American Telephone and Telegraph Company AT&T Technologies
NJ, US
IPC
C03B 37/012
C03B 37/018
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