1 May 2015 Electro-optic 1x2 switch based on proton-exchanged channel waveguides in LiNbO3
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Integrated-optic 1×2 switch utilizing electro-optically controllable Y-fed directional coupler has been fabricated in LiNbO3 substrates with proton exchange technology. Such an integrated-optic switch has the newly designed Y-branching power divider allowing for high switching contrast at the both optical output ports and low driving voltage. To obtain an acceptable value of the interaction-length-to-coupling-length ratio, the novel trimming procedure is proposed. A rather high switching contrast ≥ 23 dB (power extinction ratio) at any output port and 2.5 dB insertion losses were obtained for a device with the 9 mm electrodes length.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. M. Kostritskii, S. M. Kostritskii, Yu. N. Korkishko, Yu. N. Korkishko, V. A. Fedorov, V. A. Fedorov, "Electro-optic 1x2 switch based on proton-exchanged channel waveguides in LiNbO3", Proc. SPIE 9516, Integrated Optics: Physics and Simulations II, 951612 (1 May 2015); doi: 10.1117/12.2178370; https://doi.org/10.1117/12.2178370


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