Paper
3 April 2003 Integrated optical Ti:Cu:LiNbO3 distributed Bragg reflector with a photoreactive waveguide grating
Sergey M. Kostritskii, Yuri N. Korkishko, Vyacheslav A. Fedorov, Robert F. Tavlykaev, Ramu V. Ramaswamy
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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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergey M. Kostritskii, Yuri N. Korkishko, Vyacheslav A. Fedorov, Robert F. Tavlykaev, and 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); https://doi.org/10.1117/12.470400
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KEYWORDS
Copper

Waveguides

Annealing

Holography

Channel waveguides

Reflectivity

Integrated optics

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