发明名称 |
Fabrication of optical waveguide gratings |
摘要 |
Optical grating fabrication apparatus comprises a phase mask (40) for dividing an incident light beam (30) into a plurality of diffracted beams; and a focusing arrangement (60) for receiving light from the phase mask and converging at least two non-zero-order diffracted beams together so as to generate an interference region between the converged beams so that a grating structure can be impressed on an optical waveguide (80) placed in the interference region; the phase mask and at least a part of the focusing arrangement being moveable with respect to one another so as to alter the angle of convergence of the converged beams.
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申请公布号 |
NZ504184(A) |
申请公布日期 |
2002.11.26 |
申请号 |
NZ19980504184 |
申请日期 |
1998.10.23 |
申请人 |
PIRELLI CAVI E SISTEMI SPA |
发明人 |
LAMING, RICHARD IAN;IBSEN, MORTEN |
分类号 |
G02B5/18;G02B6/02;G02B6/124;(IPC1-7):G02B6/16;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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