Original document(18 pages) Authorized document(19 pages) 中文版
    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.
Application Number
申请号
98811703 Application Date
申请日
1998.10.23
Title 名称 Fabrication of optical waveguide gratings
Publication Number
公开号
1280677 Publication Date
公开日
2001.01.17
Approval Pub. Date 2004.01.21 Granted Pub. Date 2004.01.21
International Classification 分类号 G02B6/124;G02B6/16;G02B6/34
Applicant(s) Name
申请人
Pirelli Cavi E Sistem S.P.A.
Address 地址
Inventor(s) Name 发明人 Richard Ian Laming;Morten Ibsen
Attorney & Agent 代理人 ma gao

  
Fabricating optical waveguide gratings and/or characterising optical waveguides
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