发明名称 |
Method for fabrication of in-line optical waveguide refractive index gratings of any length |
摘要 |
A method and an apparatus for writing apodized Bragg gratings into an optical fiber. The method includes the steps of providing a photosensitive optical fiber and a writing beam. A periodic intensity distribution of period LAMBDA is created from the writing beam and the optical fiber is translated relative to the intensity distribution at a velocity v(t). The intensity of the writing beam is modulated as a function of time at a frequency f(t), where The intensity of the writing beam is varied further to control the envelope of the refractive index profile to write apodized gratings.
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申请公布号 |
US5912999(A) |
申请公布日期 |
1999.06.15 |
申请号 |
US19970942590 |
申请日期 |
1997.10.02 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BRENNAN, III, JAMES F.;LABRAKE, DWAYNE;BEAUCHESNE, GERARD A.;PEPIN, RONALD P. |
分类号 |
G02B5/18;G02B6/02;G02B6/12;G02B6/124;G02B6/34;H01S3/00;(IPC1-7):G02B6/34 |
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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