The problem of the measurement of the parameters of picosecond electric pulses with bandwidth greater than 110 GHz was examined. In order to measure the parameters of the specified electric pulses, it was proposed to use an electro-optic sampling measurement system. Several variants for implementation of a coplanar waveguide, a central node of the electro-optic sampling measurement system, are described. The parameters of a coplanar waveguide with a gallium arsenide substrate were calculated. An energy calculation was conducted for an electro-optic sampling measurement system in which the parameters of past probing laser radiation were determined. An optical circuit of an electro-optic sampling measurement system is presented, and its optical devices are preliminarily calculated. Ways toward enhancement of the sensitivity of the system are described, as well as a method of focusing the laser radiation to a spot with diameter of several tens of μm.
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Translated from Izmeritel’naya Tekhnika, No. 1, pp. 62–67, January, 2022.
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Zenchenko, M.A., Kleopin, A.V., Makarov, V.V. et al. A Coplanar Waveguide with a Gallium Arsenide Substrate for an Electro-Optic Sampling System with a Bandwidth Over 110 GHz. Meas Tech 65, 70–76 (2022). https://doi.org/10.1007/s11018-022-02050-3
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DOI: https://doi.org/10.1007/s11018-022-02050-3