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Loss in low-finesse Ti:LiNbO3 optical waveguide resonators

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Abstract

We propose to measure the contrast of Fabry-Perot resonances in low-finesse (end face polished) integrated optical resonators to determine an upper limit of the waveguide attenuation coefficient. The method is discussed; its absolute accuracy increases with decreasing loss. As example, experimental results are presented for 3 and 10 μm wide Ti: LiNbO3 strip guides; the attenuation coefficients are 0.46 dB/cm (EH11) in the narrower guide at λ=0.63 μm, respectively 0.19 dB/cm (EH11) and 0.09 dB/cm (HE11) in the 10 μm wide guide at λ=1.15 μm.

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Authors and Affiliations

  1. Angewandte Physik, Universität GH, Postfach 1621, D-4790, Paderborn, Fed. Rep. Germany

    R. Regener & W. Sohler

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  1. R. Regener
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  2. W. Sohler
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Regener, R., Sohler, W. Loss in low-finesse Ti:LiNbO3 optical waveguide resonators. Appl. Phys. B 36, 143–147 (1985). https://doi.org/10.1007/BF00691779

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  • DOI: https://doi.org/10.1007/BF00691779

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