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Applied Sciences
Volume 11
Issue 21
10.3390/app11219853
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Article

Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate

by
Roman Ponomarev
1,2,*,
Yuri Konstantinov
1,
Maxim Belokrylov
1,2,
Ivan Lobach
3 and
Denis Shevtsov
2
1
Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 614990 Perm, Russia
2
Perm State National Research University, 614990 Perm, Russia
3
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(21), 9853; https://doi.org/10.3390/app11219853
Submission received: 7 September 2021 / Revised: 13 October 2021 / Accepted: 15 October 2021 / Published: 21 October 2021
(This article belongs to the Special Issue Advances in Photonic Technologies and Cryptographic Applications)
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Abstract

This work is devoted to the study of the pyroelectric effect on the properties of optical waveguides formed in a lithium niobate crystal by proton exchange. In the present work, we studied the cessation effect of the radiation channeling during thermocycling of Y-splitters samples. We examined the spectral dependence of optical losses on the wavelength using an optical spectrum analyzer. The results demonstrate that in the range of 1530–1570 nm, all wavelengths are suppressed equally. The optical frequency domain reflectometry shows that the increase of optical losses is observed along the entire waveguide, but not only at the Y-splitting point, as supposed earlier.
Keywords: lithium niobate; modulator; channel waveguide; pyroelectric effect; OFDR lithium niobate; modulator; channel waveguide; pyroelectric effect; OFDR
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MDPI and ACS Style

Ponomarev, R.; Konstantinov, Y.; Belokrylov, M.; Lobach, I.; Shevtsov, D. Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate. Appl. Sci. 2021, 11, 9853. https://doi.org/10.3390/app11219853

AMA Style

Ponomarev R, Konstantinov Y, Belokrylov M, Lobach I, Shevtsov D. Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate. Applied Sciences. 2021; 11(21):9853. https://doi.org/10.3390/app11219853

Chicago/Turabian Style

Ponomarev, Roman, Yuri Konstantinov, Maxim Belokrylov, Ivan Lobach, and Denis Shevtsov. 2021. "Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate" Applied Sciences 11, no. 21: 9853. https://doi.org/10.3390/app11219853

APA Style

Ponomarev, R., Konstantinov, Y., Belokrylov, M., Lobach, I., & Shevtsov, D. (2021). Reflectometry Study of the Pyroelectric Effect on Proton-Exchange Channel Waveguides in Lithium Niobate. Applied Sciences, 11(21), 9853. https://doi.org/10.3390/app11219853

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