Socapex

Souriau & Cie

Radiall Industrie

Roland Desmurs

Christian Malsot

Pierre Parchet

Jean Bouygues

Elie Zajac

Jean L Pelletier

A device makes a non-permanent connection between two optical fibers each fixed into a respective fiber holding device from which a bared end of the fiber protrudes. The device comprises a socket member featuring a guide member to accommodate the aligned bared fiber ends. A clamp member in line with the guide member immobilizes the bared fiber ends by clamping them against the guide member. Two mobile plug members are each adapted to interlock nesting fashion with the socket member, one on each side of the guide member. Their axes are at a predetermined angle to the guide member. Each plug member comprises a front surface through which it comes into an abutting and supporting relationship with the other plug member. At a rear end of a central channel in the plug member is a receptacle for the fiber holding device. There is an orifice at the front end of this channel slightly larger than the diameter of the bared fiber end. The length of the central channel is sufficient to allow part of the bared fiber end to protrude after the fiber holding device is fitted into the receptacle. The width of the central channel is sufficient to allow limited flexing of the bared fiber end in response to loads applied to its protruding part. Plugging the plug members into the socket member brings the end surfaces of the two fibers into contact inside the guide member. Flexing of the fiber in the central channel produces reaction forces to pressurize the contact. It also allows displacement of the mating plane defined by the contacting end surfaces relative to the median plane of the device.

Device for making a non-permanent connection between two optical fibers,

A plug mounted on a coupling member comprises an attachment terminal in which at least one optical fiber is accurately positioned at one end. The terminal is abuttingly applied against the downstream end of the plug body by means of a spring but is movably mounted in a 'floating' arrangement within the plug body by means of locating keys on the plug body and corresponding grooves in the terminal which is thus given a limited degree of freedom of rotation about its axis. The plug body has at least one locating element for angularly orienting the plug body within the coupling member and is associated with a locking device in order to be rigidly fixed to the coupling member.

Plug for an optical-fiber connector and a connector equipped with said

The invention relates to the field of connectors for optical monofibres. In the case where the monofibre (1) is covered by a flexible sheath or envelope (3), the fixing in a connector end fitting may suffer from poor concentricity. According to the invention, a deformable cylinder (4) is placed round the fibre and to said cylinder are applied forces (P) balanced in four perpendicular directions transmitted to the flexible sheath (3) of the fibre by four, internal clamping jaws (31), which bring about a spontaneous recentering of the fibre by the creep or flow thereof. The cylinder is then placed in the end fitting. The applications relate more particularly to optical fibres with plastic sheaths for telecommunications purposes.

Connector end fitting for optical monofibre

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Suresnes, France

Roland Desmurs