发明名称 |
FABRICATING OPTICAL WAVEGUIDE GRATINGS |
摘要 |
A method of fabricating an optical waveguide grating having a plurality of grating lines of refractive index variation comprises the steps of: (i) repeatedly exposing a spatially periodic writing light pattern onto a photosensitive optical waveguide; and (ii) moving the writing light pattern and/or the waveguide between successive exposures of t he writing light pattern, so that each of at least a majority of the grating lines is generated by at least two exposures to different respective regions of the writing light pattern.
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申请公布号 |
CA2264879(C) |
申请公布日期 |
2006.11.28 |
申请号 |
CA19972264879 |
申请日期 |
1997.08.04 |
申请人 |
PIRELLI CAVI E SISTEMI S.P.A. |
发明人 |
LAMING, RICHARD IAN;COLE, MARTIN |
分类号 |
G02B5/18;G02B6/136;G02B5/28;G02B6/00;G02B6/02;G02B6/10;G02B27/42;G02B27/44;G02F1/225;H04B10/18 |
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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