title: Design and fabrication of polarization-insensitive hybrid solgel arrayed waveguide gratings.
abstract: 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.
authors.affiliation: School of Information & Communication Engineering, Micro Photonics Advanced Research Center, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea.
authors.forename: Soon-Ryong
authors.initials: SR
authors.lastname: Park
authors.forename: Jaewan
authors.initials: J
authors.lastname: Jeong
authors.forename: Beom-Hoan
authors.initials: BH
authors.lastname: O
authors.forename: Seung-Gol
authors.initials: SG
authors.lastname: Lee
authors.forename: El-Hang
authors.initials: el-H
authors.lastname: Lee