C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
26/197, 49/66, 4
C03B 37/04 (2006.01) G02B 6/245 (2006.01) G02B 6/28 (2006.01)
Patent
CA 1336132
A fused coupler is formed from two twisted optic fibres (2,3) of fluoride glass by heating them in the slot (18) of a temperature-controlled heater (15) in a shroud (14) containing an oxygen-free atmosphere. The glass of the fibres may be ZBLAN glass in which case the temperature is 323°C ? 10°C. In an alternative embodiment the shroud is dispensed with and insert gas (nitrogen) is injected into a hole in the slot (18).
599034
Nicholls Simon Thomas
Scott Michael
British Telecommunications Public Limited Company
Nicholls Simon Thomas
Pascal & Associates
Scott Michael
LandOfFree
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