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
98811703 Application Date
Title 名称 Fabrication of optical waveguide gratings
Publication Number
1280677 Publication Date
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
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
Multilayer electrically conductive anti-reflective coating
Coil harness assembly for interventional MRI application
In-door MRI display terminal and remote control system
Improved electrochemical biosensor test strip
Mass and heat flow measurement sensor
Multiple channel pipetting device
A Sampling device for thermal analysis
Pressure transducer having a tensioned diaphragm
Driver for oscillating a vibrating conduit
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.