发明名称 |
Photosensitive optical waveguide |
摘要 |
<p>The optical guide is adapted for receiving slanted Bragg grating (SBG) writing, the grating having a given angle 'theta'. The guide has a refractive index profile defining a core and a cladding and a photosensitivity profile such that coupling of the fundamental mode and the 'cladding mode' in the guide (K(theta )) and its derivative (K'(theta )) at an angle theta are equal to zero for the given angle (theta) of SBG writing. The photosensitivity profile has a step whose radial distribution is independent of step index between the core and cladding. An independent claim is also included for an optical transmission system having a gain equalizing filter comprising optical filters.</p> |
申请公布号 |
EP1538469(A1) |
申请公布日期 |
2005.06.08 |
申请号 |
EP20040292815 |
申请日期 |
2004.11.29 |
申请人 |
ALCATEL |
发明人 |
DE BARROS, CARLOS;PROVOST, LIONEL;BISCARAS HELENE;MOREAU, CHRISTINE |
分类号 |
G02B6/02;G02B6/122;(IPC1-7):G02B6/16 |
主分类号 |
G02B6/02 |
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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