Glad optical waveguide

G - Physics – 02 – B

Patent

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333/46, 49/8, 88

G02B 6/02 (2006.01) C03B 23/047 (2006.01) C03B 23/049 (2006.01) C03B 37/018 (2006.01) C03C 13/04 (2006.01)

Patent

CA 1263550

ABSTRACT An optical waveguide has a silica cladding and a phosphosilicate core. Additional components may be added to improve the match of physical properties between core and cladding. The waveguide is manufactured by passing a mixture of vapours of silicon tetrachloride and phosphorus oxychloride through the interior surface of a glass tube and heating to cause oxidation and simultaneous deposition of silica and phosphorus pentoxide. The interior coated tube is then collapsed to a rod and the rod is drawn into an optical fibre.

228086

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