Indirect heat type double-clad crystal fiber fabrication method

Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...

Reexamination Certificate

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C065S412000, C065S392000

Reexamination Certificate

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08001806

ABSTRACT:
A double-clad optical fiber fabrication method including the steps of: preparing a crystal fiber, inserting the crystal fiber into a silica capillary, attaching a sapphire tube to the periphery of the silica capillary, and applying a laser beam to the sapphire tube to increase the temperature of the sapphire tube and to further fuse the silica capillary with thermal radiation to have the fused silica capillary be wrapped about the crystal fiber, thereby forming the desired double-clad optical fiber.

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patent: 2006/0102377 (2006-05-01), Johnson et al.
patent: 2006/0174658 (2006-08-01), Huang et al.

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