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  • 1
    Electronic Resource
    Electronic Resource
    Influence of the temperature-dependent spontaneous birefringence in the electro-optic measurements of LiNbO3 (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 2406-2408 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In spite of the large utilization of LiNbO3 in optical devices, its electro-optic coefficients are not perfectly known. We show in the present paper that not taking into account the temperature dependence of the linear spontaneous birefringence can lead to an erroneous determination of the electro-optic coefficients. The electro-optic coefficient rc of LiNbO3 has been determined by an accurate technique issued from the Sénarmont method. At room temperature, rc=19.9×10−12 m/V, with an estimated error of ±5%. The measurements are performed for values of the dc applied electric field as a function of the temperature around room temperature. We point out the drastic influence on the electro-optic response of the spontaneous birefringence variation due to the temperature. Accurate and reproducible values of the electro-optic coefficients are obtained only if this dependence is taken into account.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342809
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The frequency-doubling electro-optic modulation method for Kerr-effect measurements: Application in nitrobenzene (1989)
    Springer
    Optical and quantum electronics 21 (1989), S. 363-380 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract A new method for the measurement of the electric birefringence and electro-optic coefficients in Kerr-effect liquid media is presented. The method is based on the oscilloscopic observation of a characteristic frequency-doubling of an a.c. electro-optic modulation voltage applied to the sample, inserted in a Senarmont configuration system. Theoretical analysis predicts increased accuracy and sensitivity. This is verified by application of the method in measuring the temperature dependence of the Kerr constant of liquid nitrobenzene. The method has also been applied, in conjunction with He-Ne, argon and krypton lasers, to investigate the chromatic dispersion of the Kerr effect in this liquid over the short-wavelength range of the visible spectrum. The results obtained, which are original, indicate for the Kerr constantB a law of the formB = A/λ(λ - λ0)α, where λ is the wavelength andA, λ0 and α are constants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02028180
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Measurement of quadratic electrooptic coefficients in LiNbO3 using a variation of the FDEOM method (1994)
    Springer
    Optical and quantum electronics 26 (1994), S. 1043-1059 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Calculations on the optical index ellipsoid yield that in LiNbO3, a quadratic electrooptic effect free of its linear counterpart exists only for propagation along the X-crystal axis with a longitudinal electric field and in that case the quadratic coefficients R c =R 12–R 31 and R 41 are exclusively involved. Because of their low values, we have measured these coefficients using a specific novel variation of the accurate frequency-doubling electrooptic modulation (FDEOM) method. After a presentation of the theoretical formulation and practical implementation of this method, results for R c and R 41 are given and discussed in relation to theoretically expected values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00284502
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    Paper (German National Licenses)
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