Correction of Y-Branches on Proton-exchanged Waveguides in Lithium Niobate By Femtosecond Writing Technology
Correction Y-branches power dividers of the multi-function integrated optics chips on proton-exchanged waveguides in lithium niobate by the technology of direct femtosecond laser writing were investigated. Optimal correction parameters and their influence on temperature stability of Y-splitter are determined.
Keywords: lithium niobate, Y-splitters, proton exchange, femtosecond writing, refractive index, integrated optics.
 S.M. Kostritskii, Yu.N. Korkishko, V.A. Fedorov, Optimization of multi-function integrated optics chip fabricated by proton exchange in LiNbO3, Proc. SPIE, vol. 9065, 90650E, 2013.
 Femtosecond Laser Micromachining / ed. by R. Osellame, R. Ramponi, G. Cerullo. – London: Springer-Verlag, 2012.
 Burghoff, J., Nolte S., Tunnermann A. Origins of waveguiding in femtosecond laserstructured LiNbO3. Applied Physics A, 2007, vol. 89, no. 1, pp. 127-132.
 M.A. Bukharin, N.N. Skryabin, D.V. Khudyakov, S.K. Vartapetov, Femtosecond writing of near-surface waveguides in lithium niobate, Proc. SPIE, vol. 9891, 989102, 2016.
 Korkishko Yu.N., Fedorov V.A., Prilutskii V.E., et al. Interferometric closed-loop fiberoptic gyroscopes. Proceedings of SPIE, 2012, no. 8351, 83513L.