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This article is cited in 1 scientific paper (total in 1 paper)
Acoustics, Acoustoelectronics
Acousto-optic modulators with a broadened frequency band for fiber-optic lines
V. M. Epikhin, A. V. Ryabinin All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements, Mendeleevo, Moscow region
Abstract:
The modulator/frequency shifter with single-mode fiber-optic waveguides for a radiation wavelength of 1064 nm has been designed and fabricated. A light beam was focused in the acoustic column center. The switching time of the modulator is $\simeq$ 18 ns. The operation mode is pulse and continuous. The total optical losses at the central frequency are -3.2 dB. The expression for the receiving frequency band of the modulator has been obtained. The estimates of $\simeq$ 40 MHz are in good agreement with the experimental data. We have shown that the use of the focused-beam scheme makes it possible to realize a modulator with a minimum switching time of $\simeq$ 2 – 3 ns and the receiving frequency band of $\simeq$ 200 – 300 MHz.
Keywords:
acousto-optic modulators, single-mode optical fibers, switching time, modulator frequency band, switching frequency band, matching frequency band of the acoustic wave emitter, receiving frequency band, frequency instrumental function width.
Received: 30.11.2020 Revised: 21.12.2020 Accepted: 23.12.2020
Citation:
V. M. Epikhin, A. V. Ryabinin, “Acousto-optic modulators with a broadened frequency band for fiber-optic lines”, Zhurnal Tekhnicheskoi Fiziki, 91:6 (2021), 1023–1027; Tech. Phys., 66:7 (2021), 864–868
Linking options:
https://www.mathnet.ru/eng/jtf5000 https://www.mathnet.ru/eng/jtf/v91/i6/p1023
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