S. V. Ishutkin, V. S. Arykov, I. V. Yunusov, M. V. Stepanenko, V. S. Smirnov, P. E. Troyan, Yu. S. Zhidik, “InP-based Mach–Zender modulator with adjustable extinction coefficient”, Zhurnal Tekhnicheskoi Fiziki, 2023, Volume 93, Issue 11,Pages <nobr>1622

Solid-State Electronics

InP-based Mach–Zender modulator with adjustable extinction coefficient

S. V. Ishutkin^ab, V. S. Arykov^a, I. V. Yunusov^a, M. V. Stepanenko^a, V. S. Smirnov^b, P. E. Troyan^a, Yu. S. Zhidik^ca

^a Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
^b "Mikran" Research and Production Company, Tomsk, Russia
^c Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Science, Tomsk

Abstract: Development of the Mach–Zender electrooptic modulator with adjustable extinction coefficient provided by electrical tuning of the input splitter based on multimode interferometer. Electrooptical bandwidth of the modulators was higher than 32 GHz, modulus of electric signal reflectance from the input was not higher than -12 dB within the range up to 43 GHz, half-wave voltage was equal to 2.8 V at 1550 nm. However, electrical tuning of the input splitter extended the extinction ratio of the modulator from the initial 21.5 to 29.5 dB.

Keywords: beam splitter, splitter imbalance, waveguides, amplitude modulation.

Received: 08.07.2023
Revised: 13.09.2023
Accepted: 14.09.2023

DOI: 10.61011/JTF.2023.11.56494.172-23