3 April 2003 Integrated optical Ti:Cu:LiNbO3 distributed Bragg reflector with a photoreactive waveguide grating
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Abstract
We present a broadband DBR recorded with violet light (441.6 nm) by use of a holographic technique into Tiindiffused channel LiNbO3 waveguides, which were doped by proton-assisted copper exchange, giving unique possibility to reach an extremely high modulation of refractive index (≥5x10-4) within photorefractive grating. In a first approach we obtain a reflectivity of 17 % and bandwidth (FWHM) of 1.2 nm for IR light with center wavelength 1534.3 nm. Finally, we present the experimental data on specific spectral response of an asymmetric Fabry-Perot interferometer formed by broadband DBR and air-waveguide interface.
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Sergey M. Kostritskii, Sergey M. Kostritskii, Yuri N. Korkishko, Yuri N. Korkishko, Vyacheslav A. Fedorov, Vyacheslav A. Fedorov, Robert F. Tavlykaev, Robert F. Tavlykaev, Ramu V. Ramaswamy, Ramu V. Ramaswamy, } "Integrated optical Ti:Cu:LiNbO3 distributed Bragg reflector with a photoreactive waveguide grating", Proc. SPIE 4944, Integrated Optical Devices: Fabrication and Testing, (3 April 2003); doi: 10.1117/12.470400; https://doi.org/10.1117/12.470400
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