Electro-optic properties and modulating application of langasite single crystals

Investigation of the electro‐optic activity and the electro‐optic effect of La3Ga5SiO14 crystal

“…From the slope of the linear fit we can obtain r 11 = 2.2 pm/V through Eq. (12). The results of the former experiments range from 1.8 to 2.68 pm/V (1.8 pm/V in [12], 1.9 pm/V in [13], 2.2 pm/V in [9], 2.3 pm/V in [6,8,10] and 2.68 pm/V in [4]).…”

“…(12). The results of the former experiments range from 1.8 to 2.68 pm/V (1.8 pm/V in [12], 1.9 pm/V in [13], 2.2 pm/V in [9], 2.3 pm/V in [6,8,10] and 2.68 pm/V in [4]). We attribute this difference to the different measuring instruments in the different methods, which result in some fluctuations.…”

“…The crystal growth, transparency range, specific heat, thermal expansion, resistivity, dielectric constants, optical damage threshold and electronic structure of the LGS crystals were studied in [1,4,6,[8][9][10][11]. The EO coefficient r 11 of LGS was measured by three methods: the Michelson interferometer method [4,6,[8][9][10], the phase compensation method [12] and the new method used in the literature [13] where an appropriate electric field was applied to the LGS crystal to search the output minimum through an analyzer to obtain r 11 . The Q-switching performances of the LGS Pockels cells were reported in [6 -11, 13, 14], and our recent work [15] extended the LGS Q-switch to the pulse-off cavities, which are more compact and stable than the pulse-on ones.…”

Calculation of Linear Electro-Optic Coefficients in La3Ga5SiO14 Crystals

“…As a matter of fact, the linear electro-optic effect is widely investigated in this system [4][5][6][7][8] and can generally be described by equation [9]:…”