Volume 5 Issue 1
Feb.  2012
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ZHANG Kun, YUE Yuan-bin, LI Tong, SUN Xiao-qiang, ZHANG Da-ming. Application of ICP etching in fabrication of polymer optical waveguide[J]. Chinese Optics, 2012, 5(1): 64-70. doi: 10.3788/CO.20120501.0064
Citation: ZHANG Kun, YUE Yuan-bin, LI Tong, SUN Xiao-qiang, ZHANG Da-ming. Application of ICP etching in fabrication of polymer optical waveguide[J]. Chinese Optics, 2012, 5(1): 64-70. doi: 10.3788/CO.20120501.0064

Application of ICP etching in fabrication of polymer optical waveguide

doi: 10.3788/CO.20120501.0064
  • Received Date: 12 Oct 2011
  • Rev Recd Date: 14 Dec 2011
  • Publish Date: 10 Feb 2012
  • A method to improve the performance of polymer waveguide devices by Inductively Coupled Plasma(ICP) etching is proposed and the principle and advantages of ICP etching technology are introduced. Polymethyl Methacrylate-glycidyl Methacrylate(P(MMA-GMA)) is chosen as the waveguide material to study the influence of various ICP parameters on the etching results when oxygen is selected to be the process gas. Firstly, the fabrication process of an inverted ridge waveguide device is introduced in detail. Then the variations of etching results with time, powers, pressures, gas flow parameters are analyzed by changing a single process parameter. Finally, the optimized groove and the slab structures are characterized. Experimental results indicate that the waveguide surface morphology can be improved effectively and a good shape of P(MMA-GMA) groove structure can be achieved by using the optimized IPC etching parameters in an antenna RF of 300 W, a bias RF power of 30 W, a gas pressure of 0.5 Pa and a oxygen flow velocity of 50 cm3/min.

     

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