Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Pavel Honzatko"'
Autor:
Dennis C. Kirsch, Anastasia Bednyakova, Petr Varak, Pavel Honzatko, Benoit Cadier, Thierry Robin, Andrei Fotiadi, Pavel Peterka, Maria Chernysheva
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-10 (2022)
Active tuning of laser output properties promises to broaden the versatility and applications of these light sources. Here, a variable fibre-optical coupler is introduced in a self-mode-locked Tm-doped fibre laser to achieve active wavelength tuning
Externí odkaz:
https://doaj.org/article/e50919b3dff64b14b28768ea49f6f1a3
Autor:
Martin Grabner, Kanagaraj Nithyanandan, Pavel Peterka, Pavel Koska, Ali. A. Jasim, Pavel Honzatko
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-14 (2021)
The cladding pumping within a double-clad fiber structure is an effective technique to convert high-power multimode beam into high-power, almost diffraction limited beam. Since the pump efficiency is limited by the presence of higher skew-ray modes,
Externí odkaz:
https://doaj.org/article/25c6115c667a4e908850195a90b3cdef
Autor:
Michal Kamradek, Ivan Kasik, Jan Aubrecht, Jan Mrazek, Ondrej Podrazky, Jakub Cajzl, Petr Varak, Vaclav Kubecek, Pavel Peterka, Pavel Honzatko
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 5, Pp 1-10 (2019)
Efficient holmium fiber lasers have been studied as attractive laser sources operating around 2.1 μm. We report on holmium-doped silica fibers prepared by the modified chemical vapor deposition in combination with either a solution-doping method or
Externí odkaz:
https://doaj.org/article/baf94150beb540d9855f8e5f58fa78fa
Autor:
Pavel Koška, Ali Abdulhadi Jasim, Martin Grábner, Pavel Honzatko, Kanagaraj Nithyanandan, Pavel Peterka
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 2, Pp 1-14 (2021)
The cladding pumping within a double-clad fiber structure is an effective technique to convert high-power multimode beam into high-power, almost diffraction limited beam. Since the pump efficiency is limited by the presence of higher skew-ray modes,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1735b23390e0b9172dacf7dc74c4765f
https://doi.org/10.1109/jphot.2021.3060857
https://doi.org/10.1109/jphot.2021.3060857
Autor:
Jan Aubrecht, Ondrej Podrazky, Jan Mrázek, Ivan Kašík, Michal Kamrádek, Pavel Peterka, Jakub Cajzl, Václav Kubeček, Petr Varak, Pavel Honzatko
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 5, Pp 1-10 (2019)
Efficient holmium fiber lasers have been studied as attractive laser sources operating around 2.1 μm. We report on holmium-doped silica fibers prepared by the modified chemical vapor deposition in combination with either a solution-doping method or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73379f7349ec9ae457a766885253de10
https://doi.org/10.1109/jphot.2019.2940747
https://doi.org/10.1109/jphot.2019.2940747
Autor:
Antreas Theodosiou, Kyriacos Kalli, Ivan Kašík, Pavel Honzatko, Pavel Peterka, Filip Todorov, Jan Aubrecht, Ondrej Moravec
Publikováno v:
IEEE Photonics Technology Letters. 31:409-412
We present an efficient monolithic fiber laser incorporating fiber Bragg grating (FBG) mirrors inscribed directly into the active fiber using a femtosecond laser. The FBGs are inscribed in an erbium/ytterbium co-doped fiber using the direct-write, pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e910da23a47bd8c48711f307933616be
https://doi.org/10.1109/lpt.2019.2896896
https://doi.org/10.1109/lpt.2019.2896896
Autor:
Petr Varak, Pavel Honzatko, Jan Aubrecht, Wilfried Blanc, Ondrej Podrazky, Michal Kamrádek, Jan Mrázek
Publikováno v:
Micro-structured and Specialty Optical Fibres VII.
In this work, phase-separated fibers of the system SiO2-ZrO2 doped by thulium and holmium ions were prepared by modified solution-doping method combined with MCVD. The ZrO2 concentration in both fibers was approx. 3 mol. %. The rare-earth ion concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d1cc31a1d677dd8f736e7ba085a7b7b
https://doi.org/10.1117/12.2589127
https://doi.org/10.1117/12.2589127
Publikováno v:
Micro-structured and Specialty Optical Fibres VII.
Thulium-doped fiber lasers have been extensively investigated as the most promising source of efficient laser emission at wavelengths around 2 μm, i. e., in the eye-safer spectral region and in the atmospheric window as well. It allows for wide rang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b50b8e02e0fb51a442ec2178aa56404
https://doi.org/10.1117/12.2592309
https://doi.org/10.1117/12.2592309
Publikováno v:
Micro-structured and Specialty Optical Fibres VII.
The high power optical fibers with a doped active core are subject to heating due to non-radiative absorption of pumping power in the core area. The heat generated in the central part of a fiber is conducted to its outer parts resulting in temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e82c9988b334da5224ba3a3fe4ba243
https://doi.org/10.1117/12.2592921
https://doi.org/10.1117/12.2592921
Autor:
Pavel Peterka, Jan Aubrecht, Pavel Honzatko, Ivan Kašík, Pavel Koška, Ondřej Podrazký, Ivo Bartoň, Martin Grábner, Ali Abdulhadi Jasim, Filip Todorov, Nithyanandan Kanagaraj, Michal Kamrádek
Publikováno v:
9-й Международный семинар по волоконным лазерам: материалы семинара.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::922b5431dd8a5d34acfb6407a618cfd8
https://doi.org/10.31868/rfl2020.45-46
https://doi.org/10.31868/rfl2020.45-46