2026-08-24T14:18:52Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1468302025-04-30T20:35:33Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

00925njm 22002777a 4500 dc Cheng, Chen author Jia, Yuechen author Vázquez de Aldana, Javier R. author Tan, Yang author Chen, Feng author 2016-01 A hybrid waveguiding structure has been fabricated in a z-cut lithium tantalate (LiTaO3) crystal wafer by direct femtosecond laser writing. Due to the laser-induced anisotropic modifications of the extraordinary and ordinary refractive indices (ne and no) of LiTaO3 crystal, the structure exhibits polarization-sensitive guiding features along vertical and horizontal orientations. Based on this feature, circularly-polarized light beam can be converted to vertically-/horizontally-polarized ones (i.e., TE and TM), with approximately 1:1 power splitting ratio. The well-guided performance of the polarization-sensitive structure shows the potential for integration with existing light signals to realize all-optical information processing. Cheng, C., Jia, Y., de Aldana, J. R. V., Tan, Y., & Chen, F. (2016). Hybrid waveguiding structure in LiTaO3 crystal fabricated by direct femtosecond laser writing. Optical Materials, 51, 190-193. https://doi.org/10.1016/j.optmat.2015.11.043 0925-3467 http://hdl.handle.net/10366/146830 10.1016/j.optmat.2015.11.043 Optical waveguides Femtosecond laser micromachining Lithium tantalate crystal Polarization-selective devices Hybrid waveguiding structure in LiTaO3 crystal fabricated by direct femtosecond laser writing