Long Period Gratings in Random Hole Optical Fibers for Refractive Index Sensing

نویسندگان

  • Ke Wang
  • Gary Pickrell
چکیده

We have demonstrated the fabrication of long period gratings in random hole optical fibers. The long period gratings are fabricated by a point-by-point technique using a CO(2) laser. The gratings with a periodicity of 450 μm are fabricated and a maximum coupling efficiency of -9.81 dB has been achieved. Sensing of different refractive indices in the surrounding mediums is demonstrated by applying standard liquids with refractive indices from 1.400 to 1.440 to the long period grating.

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عنوان ژورنال:

دوره 11  شماره 

صفحات  -

تاریخ انتشار 2011