发明名称 |
Method for making long-period fiber gratings |
摘要 |
Applicants have discovered that exposing optical fiber to an electrical arc produces a perturbation in its refractive index and that gratings can be made by exposing fiber to arcs at a series of locations along its length. In a first variation of the process, the fiber is exposed under tension to a high current arc (>15 mA) for a prolonged period of time (>2 s). Using this method, long period gratings can be successfully fabricated from fiber without the use of special dopants. In a second variation, the fiber is doped and the tension is reduced. The resulting grating is optically weaker but mechanically stronger. A third variation uses hydrogen-sensitized fibers and reduced currents and times. The resulting grating is optically and mechanically strong.
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申请公布号 |
US6050109(A) |
申请公布日期 |
2000.04.18 |
申请号 |
US19960740826 |
申请日期 |
1996.11.04 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
KOSINSKI, SANDRA GREENBERG;TEN EYCK, GREGORY ALEXANDER;VENGSARKAR, ASHISH MADHUKAR |
分类号 |
G02B5/18;G02B6/02;G02B6/255;G02B6/34;(IPC1-7):C03B37/10 |
主分类号 |
G02B5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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