Optical Properties and Linear Electro-Optic Effect in Ferroelectric Single Crystal KNSBN

Authors:
  • XYXu Yuhuan
    Xu Yuhuan
  • CHChen Huanchu
    Chen Huanchu
  • SLS. T. Liu
    S. T. Liu
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Abstract
The experiments for optical and linear electro-optic properties in tungsten-bronze type ferroelectic single crystal KNSBN [(K x Na1-x )0.4(Sr y Ba1-y )0.8Nb2O6 with 0.5<xyn 0 and n e of 2.3358 and 2.2747 at 5610 Å are given. The low half-wave voltage in KNSBN gives the high value n 0 3·r c of 730×10-12 m/V, which is figure of merit for EO modulator materials. The thershold energy of 618 MW/cm2 (4pps) for laser damage makes KNSBN attractive for large power laser modulation.