1
Gouez Benoit, Ripoche Pierre: Process for making optical fibre preform employing plasma deposition. Alcatel, Alcatel Fibres Optiques, July 3, 1996: EP0719738-A2 (15 worldwide citation)

A fibre optical preform is produced using a recharged plasma. The process comprises the axial modulation of at least one pass of the recharged plasma for improvement of the opto-geometric properties of the preformer. By preference, the modulation is placed during latter passes of the recharged plasm ...


2
Drouart Alain, Gouez Benoit, Lumineau Yves, Ripoche Pierre, Campion Jean Florent: Process for purifying natural or synthetic silica and depositing purified silica on an optical fibre preform. Alsthom Cge Alcatel, September 9, 1998: EP0863108-A1 (9 worldwide citation)

A natural or synthetic silica purification method involves supplying a plasma or flame (4) with silica grains (11) from a first feed pipe (9) and with a chlorinated or preferably fluorinated compound in a carrier gas (15) from a second feed pipe (13), the feed conditions of the two pipes (9, 13) bei ...


3
Drouart Alain, Gouez Benoit, Ripoche Pierre: Process and apparatus for producing preforms for glass fibres. Alsthom Cge Alcatel, November 4, 1998: EP0875489-A1 (8 worldwide citation)

A method is claimed for the fabrication of glass fibre preforms. The method consists of rotating a preformer (10) around its axis (12), displacing it in translation relative to a plasma blowtorch (14), in a direction parallel to the axis (12) of the preformer, the axes (20) of the flame (18) and (12 ...


4
Drouart Alain, Gouez Benoit, Jouvenel Bernard, Lumineau Yves, Matau Max, Ripoche Pierre: Process of plasma recharging a preform for optical fibre and optical fibre made from recharged preform produced by this method.. Alcatel Fibres Optiques, June 21, 1995: EP0658520-A1 (7 worldwide citation)

The process for plasma recharging a preform (P) for optical fibre is characterised in that it consists in introducing hydroxyl ions in a controlled manner into the recharge silica deposited on the said preform (P). Application: optical fibre, in particular single-mode.


5
Drouart Alain, Gouez Benoit, Lumineau Yves, Ripoche Pierre, Campion Jean Florent: Process for purifying silica and use for depositing the purified silica on an optical fibre preform. Cit Alcatel, February 23, 2000: EP0980849-A1 (3 worldwide citation)

Process for purifying natural or synthetic silica comprises using a plasma or a flame (4), a supply of calorific energy (3) and a supply unit (9) of natural or synthetic silica grains (11), also supplying a fluorinated or chlorinated compound mixed with a carrier gas (15). Supply conditions are adju ...


6
Drouart Alain, Gouez Benoit, Lumineau Yves, Campion Jean Florent, Ripoche Pierre: Process for purifying natural or synthetic silica and depositing purified silica on an optical fibre preform. Alcatel Fibres Optiques, September 11, 1998: FR2760449-A1 (2 worldwide citation)

A natural or synthetic silica purification method involves supplying a plasma or flame (4) with silica grains (11) from a first feed pipe (9) and with a chlorinated or preferably fluorinated compound in a carrier gas (15) from a second feed pipe (13), the feed conditions of the two pipes (9, 13) bei ...


7
Ripoche Pierre, Drouart Alain, Gouez Benoit: Process for manufacturing an optical fibre preform by external deposition of silica, optionally doped. Cit Alcatel, September 13, 2000: EP1035081-A1 (1 worldwide citation)

An optical fiber preform production process, comprising regulation of the relative positions of an injector (5) and a heater (4) during one or more passes along a preform (3), is new. An optical fiber preform production process comprises external deposition of optionally doped silica by one or more ...


8
Lavanant Gerard, Gouez Benoit, Petitfrere Emmanuel: Process and apparatus for manufacturing an optical fibre preform. Cit Alcatel, February 6, 2002: EP1178018-A1 (1 worldwide citation)

Procédé de fabrication de préforme (3), comprenant le déplacement en rotation d'une préforme (3) primaire selon X, le déplacement relatif en translation de la préforme (3) et d'une torche (4) à plasma, et l'introduction (5) d'une poudre de verre dans la flamme plasma, la poudre de verre étant accélé ...


9
Gouez Benoit, Ripoche Pierre: Process for making optical fibre preform employing plasma deposition. Alcatel Cable, July 5, 1996: FR2728888-A1

A fibre optical preform is produced using a recharged plasma. The process comprises the axial modulation of at least one pass of the recharged plasma for improvement of the opto-geometric properties of the preformer. By preference, the modulation is placed during latter passes of the recharged plasm ...


10
Drouart Alain, Gouez Benoit, Lumineau Yves, Ripoche Pierre, Campion Jean Florent: Process for purifying silica and use for depositing the purified silica on an optical fibre preform. Alsthom Cge Alcatel, February 18, 2000: FR2782316-A1

Process for purifying natural or synthetic silica comprises using a plasma or a flame (4), a supply of calorific energy (3) and a supply unit (9) of natural or synthetic silica grains (11), also supplying a fluorinated or chlorinated compound mixed with a carrier gas (15). Supply conditions are adju ...