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Multispectral sampling sequence formation in an analog optical link: the possibility of automatization using digital feedback
https://doi.org/10.32446/0368-1025it.2023-6-34-39
Abstract
Application of high-stable pulsed mode-locked lasers as a sources of sampling signal with low jitter in wide bandwidth photonic analogue to digital converters is considered. It is noted that for signals with the bandwidth up to 2 GHz the realization of pulsed multispectral sequence is highly promising method of sampling rate increasing. It is noted that high sensitivity of such systems to temperature changes and mechanical disturbances causes the increase of the sampling sequence jitter, errors in setting the light signal delays in the spectral channels causes violation of the pulses equidistance. Such a degradation of sampling signal quality leads to reduction of analogue to digital conversion precision. The method of process automatization using digital feedback and motorized delay lines is proposed for multispectral sequence pulses equidistance improvement. The results of mathematical modeling and experimental realization of the method in 3-channel multispectral sequence generation system with tripling of the sampling rate of the source mode-locked laser are represented in the article. Given method can find application in optical sampling-based analogue-to-digital microwave photonic systems of different purposes.
About the Authors
D. S. Zemtsov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Skolkovo Institute of Science and Technology
Russian Federation
Russian Federation
Daniil S. Zemtsov
Moscow
Е. Yu. Zlokazov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Еvgenii Yu. Zlokazov
Moscow
V. A. Nebavskiy
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Vsevolod A. Nebavskiy
Moscow
R. S. Starikov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Rostislav S. Starikov
Moscow
I. G. Khafizov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Ilshat G. Khafizov
Moscow
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Review
For citations:
Zemtsov D.S., Zlokazov Е.Yu., Nebavskiy V.A., Starikov R.S., Khafizov I.G. Multispectral sampling sequence formation in an analog optical link: the possibility of automatization using digital feedback. Izmeritel`naya Tekhnika. 2023;(6):34-39. (In Russ.) https://doi.org/10.32446/0368-1025it.2023-6-34-39
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