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Updated: May 26, 2026
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Planar optical waveguides in Bi4Ge3O12 crystal fabricated by swift heavy-ion irradiation
Jin Yang1, Chao Zhang, Feng Chen
1School of Physics, Key Laboratory of Particle Physics and Particle Irradiation (MOE) and State Key Laboratory of Crystal Materials, Shandong University, Jinan, China.
Abstract:
We report on the fabrication of the planar waveguides in Bi4Ge3O12 crystal by using 17 MeV C5+ or O5+ ions at a fluence of 2×10(14) ions/cm2. The reconstructed refractive index profiles of the waveguides produced by either C5+ or O5+ irradiation are the "well" + "barrier" pattern distribution. The two-dimensional modal profiles of the planar waveguides, measured by using the end-coupling arrangement, are in good agreement with the simulated modal distributions. After thermal annealing treatment at 260 °C for 30 min, the propagation loss for C5+ and O5+ irradiated waveguides could be reduced down to ~1.1 and ~4.8 dB/cm, respectively, which exhibit acceptable guiding qualities for potential applications in integrated optics.
