Photorefractive Correction of the Coupling Ratio of an Integrated Optical Directional X-Coupler on a Lithium Niobate Substrate
- Авторы: Parfenov M.V.1,2, Tronev A.V.1,3, Il’ichev I.V.1, Agruzov P.M.1, Shamrai A.V.1
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Учреждения:
- Ioffe Physical Technical Institute, Russian Academy of Sciences
- Peter the Great St. Petersburg Polytechnic University
- ITMO University
- Выпуск: Том 45, № 3 (2019)
- Страницы: 187-189
- Раздел: Article
- URL: https://journal-vniispk.ru/1063-7850/article/view/208229
- DOI: https://doi.org/10.1134/S1063785019030131
- ID: 208229
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Аннотация
The possibility of correcting the power coupling ratio of an integrated optical directional X-coupler upon excitation of a local photorefractive response in the substrate material (LiNbO3) has been analyzed. The X-coupler operation has been numerically simulated, and the regions of its maximum sensitivity to photorefraction have been determined. The correspondence between the calculated and experimental data has been obtained. The maximum correction value of the coupling ratio is 1–2%. The photorefractive correction of the coupling ratio has been used to increase the extinction ratio of a Mach–Zehnder modulator to 47 dB.
Об авторах
M. Parfenov
Ioffe Physical Technical Institute, Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University
Автор, ответственный за переписку.
Email: mvparfenov@yandex.ru
Россия, St. Petersburg, 194021; St. Petersburg, 195251
A. Tronev
Ioffe Physical Technical Institute, Russian Academy of Sciences; ITMO University
Email: mvparfenov@yandex.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
I. Il’ichev
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: mvparfenov@yandex.ru
Россия, St. Petersburg, 194021
P. Agruzov
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: mvparfenov@yandex.ru
Россия, St. Petersburg, 194021
A. Shamrai
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: mvparfenov@yandex.ru
Россия, St. Petersburg, 194021
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