Wavelength filtering characteristics of Solc filter based on Ti:PPLN channel waveguide |
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Authors: | Lee Y L Yu N E Kee C-S Ko D-K Lee J Yu B-A Shin W Eom T J Noh Y-C |
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Affiliation: | Nonlinear Optics Lab, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Korea. laks@apri.gist.ac.kr |
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Abstract: | We have analyzed the Solc filtering characteristics in a periodically poled Ti:LiNbO3 (Ti:PPLN) multimode waveguide. The single- and dual-wavelength filtering were achieved under the optimized guiding condition for the TEM(00)-like mode and two mode (TEM(00)- and TEM(01)-like mode), respectively. The full width at half-maximum of the filter was about 0.21 nm at both guiding conditions. We found that the origin of two peaks of the dual-wavelength Solc filter in the two-mode guiding condition is the different effective refractive index between the TEM(00)- and TEM(01)-like modes. The wavelength difference of two peaks is about 0.8 nm at room temperature. |
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