Apparatus for producing an optical fiber porous glass preform

Glass manufacturing – Fiber making apparatus – With multiple crucible or multichamber system

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Details

65385, 65391, 65392, 65413, 65414, 65421, 65378, 65485, C03B 3702, F27B 1418

Patent

active

060123052

ABSTRACT:
An apparatus for producing an optical fiber porous glass preform using the VAD method which can stably produce a high quality optical fiber porous glass preform, wherein a target bar is only rotatably supported by a chuck and is not pulled upward, a lower tip of a soot body is detected by a laser and a photodetector, and a core burner and a cladding burner is lowered in response to the result detected. A tip position detecting drive and burners are synchronizingly lowered while the deposit of porous glass grows at the lower portion of the target bar.

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