Optical waveguides – Accessories – Splice box and surplus fiber storage/trays/organizers/ carriers
Reexamination Certificate
2007-12-11
2007-12-11
Healy, Brian (Department: 2883)
Optical waveguides
Accessories
Splice box and surplus fiber storage/trays/organizers/ carriers
C385S014000, C385S040000, C385S147000, C359S341100, C359S333000
Reexamination Certificate
active
11053985
ABSTRACT:
An optical amplifier comprises a printed circuit board (PCB) having at least one support layer of electrically non-conducting material and at least one conductive layer of electrically conducting material, and a foil heater in the form of a conductive track20on the PCB. A specified length of erbium optical fibre is wound around an aluminium spool mounted on the PCB and clamped by a clamp with the interposition of a thermal gasket, so that the optical fibre can be heated by the heater. Cutouts are provided in the PCB surrounding the heater to minimise loss of heat from the heater. The form of the heater enables it to be produced during fabrication of the optical fibre without utilising additional costly fabrication steps.
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International Search Report for International Application No. PCT/GB2005/050012 dated Apr. 19, 2005.
Anderson Guy G
Bookham Technology plc
Healy Brian
Renner , Otto, Boisselle & Sklar, LLP
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