Optical properties of Cs:KTiOPO4 and Rb:KTiOPO4 waveguide layers

Victor V. Atuchin; I. N. Bobkov; C. C. Ziling; A. E. Plotnikov; V. N. Semenenko; N. V. Terpugov

doi:10.1117/12.145580

14 May 1993 Optical properties of Cs:KTiOPO₄ and Rb:KTiOPO₄ waveguide layers

Victor V. Atuchin, I. N. Bobkov, C. C. Ziling, A. E. Plotnikov, V. N. Semenenko, N. V. Terpugov

Proceedings Volume 1932, Guided-Wave Optics; (1993) https://doi.org/10.1117/12.145580
Event: Guided Wave Optics, 1992, Moscow, Russian Federation

Abstract

In Rb:KTiOPO₄ and Cs:KTiOPO₄ waveguides, the dependence of the refractive index changes on the mole fraction of an admixture has been found to be of the form (Delta) n_i equals A_ic. In the Rb-doped case, the coefficients A_i are equal to A_x equals 0.030, A_y equals 0.026, and A_z equals 0.023, whereas these are 0.16, 0.13, and 0.10, respectively, for the Cs-doped case. Also found are the effective ion diffusion coefficients: from D_z+^* equals 0.11 (DOT) 10^-10 cm²/c to D_z-^* equals 0.17 (DOT) 10^-10 cm²/c in Rb:KTiOPO₄ layers at 400 degree(s)C and D_z^* equals 0.56 (DOT) 10^-11 cm²/c in Cs:KTiOPO₄ layers at 430 degree(s)C. In the waveguides under study, the dispersion of the refractive index increments within (lambda) equals 0.44 divided by 1.15 micrometers has been shown not to occur. The synthesis regimes for the formation of single-mode channel waveguides in Z-cut KTiOPO₄ have been calculated from the derived relations. Channel Rb:KTiOPO₄ waveguides, single-mode at (lambda) equals 1.15 micrometers , were obtained experimentally.

Citation Download Citation

Victor V. Atuchin, I. N. Bobkov, C. C. Ziling, A. E. Plotnikov, V. N. Semenenko, and N. V. Terpugov "Optical properties of Cs:KTiOPO₄ and Rb:KTiOPO₄ waveguide layers", Proc. SPIE 1932, Guided-Wave Optics, (14 May 1993); https://doi.org/10.1117/12.145580

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