06904213 is referenced by 4 patents and cites 10 patents.

The invention provides a step index optical fiber which presents cladding having an index lower than the index of silica and a core with an index higher than the index of silica. The fiber is obtained by drawing a preform made by chemical vapor deposition using a deposition tube of index lower than the index of silica. Inner cladding of index substantially equal to the index of the deposition tube, and then a core of index higher than the index of the inner cladding are deposited in succession therein. The invention makes it possible to obtain a fiber having a large effective area, reduced attenuation, and suitable for being fabricated at low cost by chemical vapor deposition.

Title
Step index optical fiber with doped cladding and core, a preform, and a method of fabricating such a fiber
Application Number
10/136297
Publication Number
6904213 (B2)
Application Date
May 2, 2002
Publication Date
June 7, 2005
Inventor
Christine Labatut
Conflans Ste Honorine
FR
Jean Florent Campion
Conflans St Honorine
FR
Pascale Nouchi
Maisons-Lafitte
FR
Maxime Gorlier
Paris
FR
Pierre Sillard
Le Chesnay
FR
Florent Beaumont
Conflans Ste Honorine
FR
Louis Anne de Montmorillon
Paris
FR
Ludovic Fleury
Bois d'Arcy
FR
Agent
Sughrue Mion PLLC
Assignee
Alcatel
FR
IPC
G02B 006/02
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