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LI Xiao-ping, YI Xin-jian, SHI Tie-lin. Error analysis and coating thickness control method for the narrow band DWDM filter[J]. LASER TECHNOLOGY, 2006, 30(3): 313-316.
Citation: LI Xiao-ping, YI Xin-jian, SHI Tie-lin. Error analysis and coating thickness control method for the narrow band DWDM filter[J]. LASER TECHNOLOGY, 2006, 30(3): 313-316.
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Error analysis and coating thickness control method for the narrow band DWDM filter

  • 1.

    Department of Opto-Electronics Engineering, HUST, Wuhan 430074, China;

  • 2.

    Institute of Microsystems, HUST, Wuhan 430074, China

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  • Received Date: March 08, 2005
  • Revised Date: November 09, 2005
  • Published Date: May 24, 2006
    Graphical Abstract
    • Abstract
  • To improve the productivity of fabrication of the narrow band DWDM film filter,the monitoring method and error in coating this film is discussed.Monte Carlo method is used to model the tolerance of the layer for the filter,and the results are used to select the easy coating film system.The film thickness error of each layer is obtained by calculating the Macleod maximum sensitivity.The compensation of the film thickness between each layer is obtained by modeling the optical monitoring processes and the film admittance.The strategy of controlling the film thickness is obtained through the above measures,and the experiments have proved that this is crucial to coating the film for the filter and impoving the productivity.
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    • References (10)
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