Temat: Mach-Zehnder interferometer - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Phase coding of information in the optical fibre sensor
Autorzy:: Życzkowski, M.
Karol, M.
Pałka, N.
Powiązania:: https://bibliotekanauki.pl/articles/1818224.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: optical fibre sensors
Mach-Zehnder interferometer
quantum sensors
Opis:: Determining the dependence of phase difference modulations between light pulses in a modified Mach-Zehnder interferometer was used to develop an optical system coding the information and working as an eavesdropping sensor for an optical fibre information exchange system. The basic challenge in the system development is to maintain stable operation in changing environmental conditions, as well as to ensure optimal parameters of the phase modulator. The system was tested for various many-kilometer long transmission lines of single-mode fibres. The research was focused on achieving the normative Bit Error Rate for the system in the 100 Mbit/s range (STM-1). Such a system can be used in commercial applications for the code key secure transmission in the physical layer of the link.
Źródło:: Opto-Electronics Review; 2020, 28, 1; 1--7
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Vibration sensing with the optical fibre Mach-Zehnder interferometer
Autorzy:: Kurzych, Anna T.
Jaroszewicz, Leszek R.
Powiązania:: https://bibliotekanauki.pl/articles/27315693.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:: Mach-Zehnder interferometer
vibration sensor
optical fibre technology
Opis:: Vibration is a ubiquitous phenomenon that occurs in everyday life and people are exposed to it almost all the time. Most often, vibration is measured using electromechanical devices such as piezoelectric, piezoresistive, or capacitive accelerometers. However, attention should be paid to the limitations of such vibration sensors. They cannot operate in the presence of strong electromagnetic fields. Measurements with electromechanical devices require physical contact between the sensor and the vibrating object, which is not always possible due to the design of the sensor and device. The possibility of a non-contact vibration measurement in harsh environments is provided by the technology of interferometric fibre optic sensors. This paper reports the principle of operation, design aspects, experimentation, and performance of a Mach-Zehnder interferometric setup for the measurement of vibration frequency. There are different sensing arms implemented in the interferometer: single-mode, polarization-maintaining, and tapered optical fibre. The paper emphasises the simplicity of the set-up structure and the detection capabilities based on the interferometric sensing giving the possibility of constructing a commercial vibration sensor for all industry demands.
Źródło:: Opto-Electronics Review; 2023, 31, 4; art. no. e148992
1230-3402
Pojawia się w:: Opto-Electronics Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: In-fiber Mach–Zehnder interferometer based on polarization-maintaining fiber for displacement and temperature sensing
Autorzy:: Cheng, Jun-Ni
Jiang, Xiao-Yan
Powiązania:: https://bibliotekanauki.pl/articles/2202764.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: displacement sensing
polarization-maintaining fiber
graded-index multimode fiber
Mach-Zehnder interferometer
Opis:: A displacement sensor based on polarization-maintaining fiber has been proposed and proved in experiment. The polarization-maintaining fiber (PMF) is sandwiched with two graded-index multimode fibers (GI MMF), which form the Mach–Zehnder interferometer (MZI) sensor. Graded-index multimode fiber serve as an optical coupler for modes conversion. The results show that with the increase of displacement, the spectrum moves to the long wavelength direction, but when temperature increases, the spectrum has a red shift, which means that the displacement and temperature can be measured separately according to the wavelength drift direction. The sensor consists of 4 mm GI MMF and 14 mm PMF, which can exhibit the displacement sensitivity of –9.275 pm/μm in the range of 0–600 μm. In addition, temperature will also affect the sensitivity of displacement measurement, so the sensitivity of the sensor to temperature is also measured. The results show that the selected monitoring dip provides a better temperature sensitivity of 33.605 pm/°C in the range of 35–75°C. The sensor is easy to fabricate and does not has any functional coating, which make it become a good candidate in the industrial field.
Źródło:: Optica Applicata; 2023, 53, 1; 21--33
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Application of the Mach-Zehnder interferometer to measure the quadratic electro-optic effect in nonpolar liquids
Zastosowanie interferometru Macha-Zehndera do pomiarów kwadratowego efektu elektrooptycznego w cieczach niepolarnych
Autorzy:: Ledzion, R.
Górski, P.
Kubiak, K.
Kucharczyk, W.
Powiązania:: https://bibliotekanauki.pl/articles/296613.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:: Mach-Zehnder interferometer
electro-optic effect in liquids
Kerr constant
interferometr Macha-Zehndera
efekt elektrooptyczny w cieczach
stała Kerra
Opis:: A modification of Mach-Zehnder interferometer is proposed. It is shown that by introducing an additional time dependent phase shift in one of the interferometer arms, its sensitivity may be significantly increased. The method is applied to measure the quadratic electrooptic effect in transformer oil.
Zaproponowano metodę pomiaru kwadratowego efektu elektrooptycznego w cieczach przy wykorzystaniu interferometru Macha-Zehndera. Pokazano, że dodatkowa modulacja fazy w jednym z ramion interferometru znacząco zwiększa czułość pomiaru. Metodę zastosowano do pomiaru składowych tensora kwadratowego efektu elektrooptycznego w oleju transformatorowym.
Źródło:: Scientific Bulletin. Physics / Technical University of Łódź; 2015, 36; 55-61
1505-1013
2449-982X
Pojawia się w:: Scientific Bulletin. Physics / Technical University of Łódź
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: All-optical parity generator and checker circuit employing semiconductor optical amplifier-based Mach–Zehnder interferometers
Autorzy:: Kaur, S.
Shukla, M. K.
Powiązania:: https://bibliotekanauki.pl/articles/173209.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: optical computing
semiconductor optical amplifier (SOA)
semiconductor optical amplifier -based Mach–Zehnder interferometer (SOA-MZI)
XOR gate
parity generator
parity checker
Opis:: Checking the parity of the data signal during transmission and reception is one way to ensure errorless transmission of data. In this communication the authors propose a method to implement an all-optical parity generator and checker using semiconductor optical amplifier-based Mach–Zehnder interferometers. The scheme, able to process input signals at the same wavelength, is characterized using return-to-zero modulated signals at 10 Gb/s. Correct logic bit sequences and clear open eye patterns with extinction ratios exceeding 10 dB are achieved. Simple structure and potential for integration make this architecture an interesting approach in photonic computing and optical signal processing.
Źródło:: Optica Applicata; 2017, 47, 2; 263-271
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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