Lithium niobate as an effective material for manufacturing of electro-optic modulators

Izabella Pracka; Waldemar Giersz; Marek Swirkowicz; Z. Luczynski; Z. Weydmann; R. Wodnicki; Andrzej L. Bajor

doi:10.1117/12.156915

15 October 1993 Lithium niobate as an effective material for manufacturing of electro-optic modulators

Izabella Pracka, Waldemar Giersz, Marek Swirkowicz, Z. Luczynski, Z. Weydmann, R. Wodnicki, Andrzej L. Bajor

Proceedings Volume 1845, Liquid and Solid State Crystals: Physics, Technology and Applications; (1993) https://doi.org/10.1117/12.156915
Event: Liquid and Solid State Crystals: Physics, Technology, and Applications, 1992, Zakopane, Poland

Abstract

The results of experimental investigations on single crystal growth of lithium niobate for optical purposes are reported. The crystals were grown by the Czochralski method with the use of induction heated equipment type CGS-2 made by Spexon. The thermal system consisted of platinum crucible and active platinum afterheater. To determine the homogeneity and optical quality of single crystals the distribution of birefringence and of refractive indices n_o and n_e were measured. Samples of active elements were prepared and their conoscopic images were checked. On the basis of these elements the electro-optic modulators were made for which extinction ratio and V_(lambda /2) were measured. Optoelectronic structures with `cut-off' effect on lithium niobate substrates were also prepared for straight and Y waveguides. The waveguides were obtained by Ti in-diffusion.

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Izabella Pracka, Waldemar Giersz, Marek Swirkowicz, Z. Luczynski, Z. Weydmann, R. Wodnicki, and Andrzej L. Bajor "Lithium niobate as an effective material for manufacturing of electro-optic modulators", Proc. SPIE 1845, Liquid and Solid State Crystals: Physics, Technology and Applications, (15 October 1993); https://doi.org/10.1117/12.156915

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