Electric heating – Microwave heating – Tunnel furnace
Patent
1979-06-14
1981-06-23
Corbin, John K.
Electric heating
Microwave heating
Tunnel furnace
65 4B, 219121PX, G02B 514, B23K 900
Patent
active
042747074
ABSTRACT:
A fusion apparatus for fusing a pair of optical fibers end-to-end by an electrical arc has a fiber gripping head on a support housing in which the various electrical and electronic circuits and control devices are housed. The gripping head has two fiber holding members, each member having a first portion for holding a coated portion of a fiber and a second spring loaded portion for bearing on a stripped portion of a fiber end. The second portion is deflectable relative to the first portion. Two electrodes, in opposition, are mounted one on each side of an axis through the fiber ends. A prefusion arc can be provided for initial rounding of the fiber ends. The prefusion arc and fusion arc times can be preset. Transfer members can be mounted on the housing for moving a fused pair of fibers to a heating position where a heat shrink sleeve, previously slid on one of the fiber ends can be positioned over the splice and heat shrunk on to the splice.
REFERENCES:
patent: 3810802 (1974-05-01), Buhite et al.
patent: 3960531 (1976-06-01), Kohanzadeh et al.
patent: 4049414 (1977-09-01), Smith
patent: 4118618 (1978-10-01), Gauthier et al.
patent: 4141776 (1979-02-01), Ellwood et al.
Fujita et al., "Optical Fiber Splicing Technique with a CO.sub.2 Laser", Appl. Optics, vol. 15, No. 2, Feb. 1976, pp. 320-321.
Kohanzadeh, "Hot Splices of Optical Waveguide Fibers", Applied Optics, vol. 15, No. 3, Mar. 1976, pp. 793-795.
Bisbee, "Splicing Silica Fibers with an Electric Arc", Applied Optics, vol. 15, No. 3, Mar. 1976, pp. 796-798.
Hatakeyama et al., "Fusion Splices for Optical Fibers by . . . ", Applied Optics, vol. 17, No. 12, Jun. 1978, pp. 1959-1964.
Hvezda Jaroslav M.
Pacey Grant K.
Corbin John K.
Lee John D.
Northern Telecom Limited
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