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Refractive Index Sensitivity and Post-Fabrication Tuning in a Long-Period Waveguide Grating

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Abstract

We investigate experimentally the refractive index sensitivity of a long-period waveguide grating made of thermo-curable polymers. Based on the refractive index sensitivity, we propose and demonstrate a simple post-fabrication tuning method using a polydimethylsiloxane block.

© 2005 Optical Society of America

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