Characterization of stimulated Mandelstam-Brillouin scattering spectrum using a double-frequency probing radiation

Morozov, Oleg G.; Talipov, Anvar A.; Morozov, Gennady A.; Kupriyanov, V. G

doi:10.1117/12.2017835

Cited by 18 publications

(25 citation statements)

References 8 publications

(11 reference statements)

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“…Using the dual-frequency transducer is promising for use in photonic instantaneous frequency measurement methods [10][11][12][13] based on the interaction of twofrequency and fiber Bragg grating.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

Microwave spectroscopy of the fiber Bragg grating

Morozov

Denisenko

2015

2015 International Conference on Antenna Theory and Techniques (ICATT)

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In this paper the modulation methods for poly-harmonic microwave signals on optical carrier forming and detecting are demonstrated, especially for applications in fiber-optic sensor systems. The methods of the single-frequency optical signal conversion into the poly-harmonic ones with the difference frequency between the components of SHF, UHF and partly EHF bands has been proposed. In order to form the poly-harmonic signals we used the amplitude Mach-Zehnder modulator (JDSU) or the polarization modulator (Versawave Technologies). The resulting probing radiations were used for microwave spectroscopy of separate or combined into groups fiber Bragg gratings, as sensors of measuring systems. Application of microwave probing signals with detection in the frequency domain or by the envelope allowed simplifying methods for the spectral characterization of gratings and improvement of technical and economic performance of fiber-optic sensor systems.

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Section: Discussion Of the Resultsmentioning

confidence: 99%

Microwave spectroscopy of the fiber Bragg grating

Morozov

Denisenko

2015

2015 International Conference on Antenna Theory and Techniques (ICATT)

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“…The analysis presented in [18] shows that from the electrical output signal we can get the image of the optical transfer function at the beat frequency of the two components of the probing signal, which will be determined by the change of their amplitudes and phases. At the moment when center frequency of a probing signal gets to the resonance frequency of a sensor (FBG) amplitudes and modules of the phases of both components are equal, the modulation index of the output signal's envelope is maximum and equal to 1, and the envelope of the signal is matched in phase with the envelope of the probing signal at the input.…”

Section: Monitoring Channel Of Instantenous Frequency Measuring Systemmentioning

confidence: 99%

Instantaneous frequency measurement of microwave signals in optical range using "frequency-amplitude" conversion in the π-phase-shifted fiber-Bragg grating

et al. 2014

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This paper presents a microwave photonics method for the instantaneous frequency measurement of microwave signals, based on the generation of a two-frequency laser radiation in the Mach -Zehnder modulator with a difference frequency equal to the measured, and the "frequency -amplitude" conversion in the π-phase-shifted fiber Bragg grating. Frequency measurement occurs in two ranges: 0.3 -3 GHz in the passband of the FBG and 3 -30 GHz in its reflection band. Using the specific conversion of two-frequency radiation in the π-phase-shifted fiber Bragg grating allowed us to obtain measuring characteristics, that are independent of the amplitude fluctuations of the optical carrier and to organize additional circuit for monitoring the spectral characteristics of the used elements to reduce measurement inaccuracy caused by their temperature instability.

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“…The measurement method offered by us is based on the two-frequency probing radiation of BS without single-sideband modulation 8,9 . Experimental setup for measurements is shown in fig.…”

Section: Characterization Of Bs Using a Two-frequency Radiationmentioning

confidence: 99%

Intellectual parachute and balloon systems based on fiber optic technologies

Nikolaev¹,

Nikolaev²,

Nikolaev³

et al. 2014

SPIE Proceedings

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For any parachute system, it is important to predict the opening forces it will experience in order to make a safe and economic choice of materials to be used. Developed fiber optic sensors on two twisted fibers with the locked ends and variable twisting step have been used for creation of intellectual knots of perspective vehicles, in particular, parachute canopies and slings. We decided to change our measuring procedure from measuring of transmitted power or its Raleigh scattering in different ends of twisted fibers onto Brillouin scattering characterization. For this situation we offered the kind of method of frequency variation to get the information about the frequency shift and Q-factor of the Brillouin scattering in each sensor.

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Characterization of stimulated Mandelstam-Brillouin scattering spectrum using a double-frequency probing radiation

Cited by 18 publications

References 8 publications

Microwave spectroscopy of the fiber Bragg grating

Microwave spectroscopy of the fiber Bragg grating

Instantaneous frequency measurement of microwave signals in optical range using "frequency-amplitude" conversion in the π-phase-shifted fiber-Bragg grating

Intellectual parachute and balloon systems based on fiber optic technologies

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