Method and apparatus for fabricating fiber Bragg g

专利名称：Method and apparatus for fabricating fiber

Bragg gratings

发明人：Kensuke Sasaki,Akihiko Nishiki申请号：US10885659申请日：20040708

公开号：US200500166A1公开日：20050127

专利附图：

摘要：A method for fabricating fiber Bragg gratings including: scanning a

photosensitive optical fiber with ultraviolet laser light in a longitudinal direction of theoptical fiber by means of a phase mask method, thereby forming periodic refractive index

modulation structure in a core of the optical fiber in the longitudinal direction; andinstantaneously moving a phase mask used in the phase mask method by apredetermined distance in the longitudinal direction, thereby forming a phase shiftportion in the periodic refractive index modulation structure formed in the core of theoptical fiber, when a radiation position of the ultraviolet laser light reaches a

predetermined position, in the middle of the scanning step using the ultraviolet laserlight.

申请人：Kensuke Sasaki,Akihiko Nishiki

地址：Kanagawa JP,Tokyo JP

国籍：JP,JP

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