G - Physics – 02 – B
Patent
G - Physics
02
B
88/97.5
G02B 6/245 (2006.01) G02B 6/28 (2006.01) H04B 10/213 (2006.01)
Patent
CA 1076858
LOW LOSS DIRECTIONAL COUPLING FOR OPTICAL FIBRES Abstract of the Disclosure Low loss directional coupling of optical fibres is obtained by wrapping a tap fibre round a trunk fibre. Any cladding is first removed and then the tap fibre wrapped round the trunk fibre. The tap ratio can be varied by a variation in the number of turns or twists of the tap fibre around the trunk fibre. Signals can be abstracted by the tap fibre and also inserted. - i -
300734
Duck Gary S.
King Frederick D.
Na
Northern Telecom Limited
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