Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Oleg E Nanii"'
Autor:
Danil M. Bengalskii, Danil R. Kharasov, Edgard A. Fomiryakov, Sergei P. Nikitin, Oleg E. Nanii, Vladimir N. Treshchikov
Publikováno v:
Photonics, Vol 10, Iss 11, p 1234 (2023)
A new method to measure laser phase noise and frequency stability based on the phase-sensitive optical time-domain reflectometry is proposed. In this method, the laser under test is utilized in a phase-sensitive optical time-domain reflectometer, whi
Externí odkaz:
https://doaj.org/article/2eb861e960b24a318d0672e1dd5ab696
Autor:
Alisa E. Fale, Andrei D. Zverev, Vladimir A. Kamynin, Alexey A. Wolf, Serafima A. Filatova, Oleg E. Nanii, Alexander P. Smirnov, Anatolii I. Fedoseev, Vladimir B. Tsvetkov
Publikováno v:
Photonics, Vol 9, Iss 11, p 846 (2022)
We demonstrate a detailed theoretical and experimental study of a thulium-doped fiber laser being Q-switched by means of an acousto-optic modulator. The processes leading to the generation of discontinuous multi-peak pulses with an energy of up to 5
Externí odkaz:
https://doaj.org/article/b05980b00fe145b295ec843978c9c976
Publikováno v:
Journal of Lightwave Technology. 39:5191-5196
A new technique to measure phase noise properties of highly coherent lasers based on delayed self-heterodyne interferometer (DSHI) is suggested where the Allan variance of the beat note frequency is obtained via digital signal processing and then use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81dbbfd501d21449105a354e1d554eaa
https://doi.org/10.1109/jlt.2021.3082263
https://doi.org/10.1109/jlt.2021.3082263
Autor:
M. A. Bukharin, D. M. Bengalskii, E. A. Fomiryakov, V. N. Treshchikov, S. P. Nikitin, Oleg E Nanii, D. R. Kharasov
Publikováno v:
Moscow University Physics Bulletin. 76:167-175
An optimal arrangement of point reflectors inscribed by femtosecond laser pulses in a standard telecommunication fiber is found, which provides the maximum operating range of distributed sensors based on phase-sensitive optical time-domain reflectome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::959717ba3554b7be3dcff23007056257
https://doi.org/10.3103/s0027134921030048
https://doi.org/10.3103/s0027134921030048
Publikováno v:
Quantum Electronics. 51:299-305
Using an improved travelling wave model, we have numerically investigated the dynamics of a Q-switched bismuth-doped fibre laser. Comparison of simulation results with previously reported experimental data demonstrates good agreement of the multipeak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b676027aeba8c79a6a57d1d4429095d4
https://doi.org/10.1070/qel17501
https://doi.org/10.1070/qel17501
Autor:
S. P. Nikitin, Oleg E Nanii, D. M. Bengalskii, E. A. Fomiryakov, D. R. Kharasov, V N Treshchikov
Publikováno v:
Quantum Electronics. 51:175-183
It has been shown experimentally and confirmed by numerical simulation that strong local stretching of sensing fibre distorts the signal detected by a phase-sensitive optical time-domain reflectometer (OTDR) from the fibre section behind the local di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25522e3fd2192ddb12e725c3496e85a0
https://doi.org/10.1070/qel17369
https://doi.org/10.1070/qel17369
Publikováno v:
Quantum Electronics. 50:882-887
We present a model and numerical simulation of a distributed temperature sensor based on a two-pulse differential coherent optical time-domain reflectometer (COTDR). The differential phase measured using a phase-sensitive Rayleigh reflectometer is sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29d1f7bd875c515571506c0805af2ae9
https://doi.org/10.1070/qel17225
https://doi.org/10.1070/qel17225
Autor:
E. A. Fomiryakov, S. M. Popov, Oleg E Nanii, D. M. Bengalskii, V N Treshchikov, D. R. Kharasov, M. Yu. Vyatkin, Yu. K. Chamorovsky, S. P. Nikitin
Publikováno v:
Quantum Electronics. 50:510-513
>A record long external-disturbance detection distance of 140 km without employing optical amplifiers in the fibre line is demonstrated by a phase-sensitive optical time-domain reflectometer (Φ-OTDR) using a fibre section with inscribed chirped fibr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d0f33f6886ddff5f9145dd7e701f6a0
https://doi.org/10.1070/qel17232
https://doi.org/10.1070/qel17232
Publikováno v:
Journal of Lightwave Technology. 38:1446-1453
A new scheme of heterodyning facilitated by electro-optic modulator (EOM) is used to characterize the Allan deviation and phase noise of the beat note generated using different pairs of highly coherent lasers. Use of EOM greatly expands optical frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ddb2eb5078b3e3a388fbb86766aeb4c
https://doi.org/10.1109/jlt.2019.2952688
https://doi.org/10.1109/jlt.2019.2952688
Publikováno v:
Quantum Electronics. 49:1149-1153
We discuss the design issues and characteristics of coherent fibre-optic communication networks taking into account the many physical effects that simultaneously influence signal propagation. Algorithms and easy-to-use ‘engineering’ techniques ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84fca4d1575e677b352e8b17fa86325
https://doi.org/10.1070/qel17164
https://doi.org/10.1070/qel17164