Method and apparatus for fabricating and trimming optical...

Radiant energy – Irradiation of objects or material

Reexamination Certificate

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C385S037000, C385S123000, C355S053000

Reexamination Certificate

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06911659

ABSTRACT:
A method and system for the controlled irradiation of optical fibers in a process for fabricating optical fiber components such as Bragg grating devices. A beam of ultraviolet light is passed through a narrow slit in a mask to form a narrow beam of light. The narrow beam is focused into a line image that is directed onto the optical fiber to produce a photo-induced refractive index change in the optical fiber. The intensity and configuration of the line image as it impinges the optical fiber is controlled to reduce detrimental effects to the fiber.

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patent: 6307617 (2001-10-01), Nishiki et al.
patent: 6741349 (2004-05-01), Sweatt et al.

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