Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2007-01-09
2007-01-09
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S128000
Reexamination Certificate
active
10748282
ABSTRACT:
The present invention relates to an optical fiber (1′) having at least one Bragg grating (11), the fiber comprising a core (2) surrounded successively by cladding (3) and a coating (4), said fiber being obtained by writing said grating in the core and/or the cladding directly through the coating which is made of a material containing an organic substance that is substantially transparent to the ultraviolet type radiation used for writing said grating, wherein the material of said coating contains an inorganic substance that is not miscible with the organic substance and that is distributed in substantially uniform manner in said material.
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K. Imamura et al, “High reliability tin-codoped germanosilicate fibre Bragg gratings fabricated by direct writing method”, Electronics Letters, IEE Stevenage, GB, vol. 34, No. 18, Sep. 3, 1998, pp. 1772-1773, XP006010237.
U.S. Appl. No. 10/748,278 filed Dec. 31, 2003, entitled “An Optical Fiber having at Least One Bragg Grating Obtained by Writing Directly Through the Coating Covering and Cladding”.
C. Decker, “High-speed curing by Laser Irradiation”, Nuclear Instruments & Methods In Physics Research, Section-B: Beam Interactions With Materials And Atoms, North-Holland Publishing Co., Amsterdam, NL, vol. 151, Nr. 1-4, pp. 22-28, XP004416403.
Andre Sébastien
Andrieu Xavier
Make Dalila
Masson Fréderic
Poussiere Fabrice
Alcatel
Connelly-Cushwa Michelle
Rahll Jerry T.
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