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Opt Lett. 2003 Mar 15;28(6):381-3.

Design and fabrication of polarization-insensitive hybrid solgel arrayed waveguide gratings.

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  • 1School of Information & Communication Engineering, Micro Photonics Advanced Research Center, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea.


We report on the successful design and fabrication of a polarization-insensitive arrayed waveguide grating (AWG), using solgel-derived silica glass films formed on fused-silica substrates. By controlling the waveguide width and making the propagation constants of the polarizations equal, we have found it possible to fabricate polarization-insensitive solgel-based AWGs. Polarization-insensitive design improves the cross talk by approximately 10 dB in the dynamic range.

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