Torch fo fabricating optical fiber preform

Details Torch fo fabricating optical fiber preform Torch fo fabricating optical fiber preform

C - Chemistry, Metallurgy

03

B

32/23

C03B 37/018 (2006.01) C03B 37/014 (2006.01) G02B 6/00 (2006.01)

Patent

CA 1265330

TORCH FOR FABRICATING OPTICAL FIBER PREFORM ABSTRACT OF THE DISCLOSURE A torch for fabricating an optical fiber preform which has a plurality of raw gas injection passages at the center of the torch, a plurality of small-diameter combustion supporting gas injection passages independent of each other and disposed to surround the raw gas injection passages on the outer periphery of the raw gas injection passages disposed at the center of the torch, and an annular combustible gas injection passage provided on the periphery of each of the small-diameter combustion supporting gas injection passages. Thus, the torch can stably manufacturing the porous glass preform.

529518

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