Fabrication of high extinction ratio lithium niobate integrated optical modulators using photorefractive trimming

A. Tronev; M. Parfenov; P. Agruzov; I. Ilichev; L. Shamray; A. Shamray

doi:10.1117/12.2291493

23 February 2018 Fabrication of high extinction ratio lithium niobate integrated optical modulators using photorefractive trimming

A. Tronev, M. Parfenov, P. Agruzov, I. Ilichev, L. Shamray, A. Shamray

Author Affiliations +

Proceedings Volume 10535, Integrated Optics: Devices, Materials, and Technologies XXII; 1053527 (2018) https://doi.org/10.1117/12.2291493
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

A method for increasing the extinction ratio of integrated optical Mach-Zehnder modulators based on LiNbO₃ via the photorefractive effect is proposed. The influence of the photorefractive effect on the X- and Y-splitters of intensity modulators is experimentally studied. An increase in the modulator extinction ratio by 17 dB (from 30 to 47 dB) is obtained. It is shown that fabricated modulators with a high extinction ratio are important for quantum key distribution systems.

Citation Download Citation

A. Tronev, M. Parfenov, P. Agruzov, I. Ilichev, L. Shamray, and A. Shamray "Fabrication of high extinction ratio lithium niobate integrated optical modulators using photorefractive trimming", Proc. SPIE 10535, Integrated Optics: Devices, Materials, and Technologies XXII, 1053527 (23 February 2018); https://doi.org/10.1117/12.2291493

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