发明名称 |
Technique to prepare high-reflectance optical fiber bragg gratings with single exposure in-line or fiber draw tower |
摘要 |
A process for making an optical reflection grating in a glass fiber includes exposing an unjacketed optic fiber to a single writing pulse from a pair of interfering light beams that form an interference pattern in the fiber. A novel optical fiber has at least one optical grating with a preselected Bragg spacing in at least one region of the fiber, with a periodic modulation in its index of refraction, with high thermal stability and narrow linewidth. A process for making an array of optical reflection gratings in a glass fiber includes exposing a fiber to a plurality of writing pulse from a pair of interfering light beams that form an interference pattern in the fiber, where these pulses are applied sequentially as the fiber is drawn from a draw furnace. A novel optical fiber has a plurality of unspliced gratings with high thermal stability and narrow linewidth.
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申请公布号 |
US5400422(A) |
申请公布日期 |
1995.03.21 |
申请号 |
US19930006544 |
申请日期 |
1993.01.21 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
ASKINS, CHARLES G.;FRIEBELE, EDWARD J. |
分类号 |
C03B37/027;C03C25/62;(IPC1-7):G02B6/34 |
主分类号 |
C03B37/027 |
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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