Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Pavel Koška"'
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:
Filip Todorov, Jan Aubrecht, Pavel Peterka, Ondřej Schreiber, Ali A. Jasim, Jan Mrázek, Ondřej Podrazký, Michal Kamrádek, Nithyanandan Kanagaraj, Martin Grábner, Yauhen Baravets, Jakub Cajzl, Pavel Koška, Adam Fišar, Ivan Kašík, Pavel Honzátko
Publikováno v:
Materials, Vol 13, Iss 22, p 5177 (2020)
Laser sources emitting in the infrared range at around 2 µm are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectroscopy, ga
Externí odkaz:
https://doaj.org/article/0d71101b15774accae7c17224e2cbb50
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:
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
Autor:
Nithyanandan Kanagaraj, Jakub Cajzl, Jan Mrázek, Pavel Honzatko, Ondřej Schreiber, Jan Aubrecht, Michal Kamrádek, Adam Fišar, Yauhen Baravets, Filip Todorov, Ali Abdulhadi Jasim, Ivan Kašík, Pavel Koška, Ondřej Podrazký, Martin Grábner, Pavel Peterka
Publikováno v:
Materials
Materials, Vol 13, Iss 5177, p 5177 (2020)
Volume 13
Issue 22
Materials, Vol 13, Iss 5177, p 5177 (2020)
Volume 13
Issue 22
Laser sources emitting in the infrared range at around 2 µ
m are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectr
m are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6645eaefad1f564dfa0e1a54136ca0cf
https://pubmed.ncbi.nlm.nih.gov/33212802
https://pubmed.ncbi.nlm.nih.gov/33212802
Autor:
Pavel Koška, Pavel Peterka, Pavel Honzatko, K. Nithyanandan, Martin Grábner, Ali Abdulhadi Jasim
Publikováno v:
Micro-Structured and Specialty Optical Fibres VI.
The high-power operation of fiber lasers was enabled mainly by the invention of cladding pumping within a double-clad fiber structure. Various cross-sectional shapes of double-clad fibers as well as unconventional coiling methods have been investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a4b49dde2c0e16ed1a7415bcbbfa349
https://doi.org/10.1117/12.2557230
https://doi.org/10.1117/12.2557230
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 24:1-8
We report on reflectivity of transient Bragg gratings created in the active medium of a fiber laser with longitudinal mode instability. Despite the long history of laser physics, reflectivities of such gratings were theoretically studied and experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e4b4c4e646a7756b8bed05e40de4349
https://doi.org/10.1109/jstqe.2018.2806084
https://doi.org/10.1109/jstqe.2018.2806084
Autor:
Pavel Koška, Pavel Honzatko, Michal Kamrádek, Ali Abdulhadi Jasim, Nithyanandan Kanagaraj, Ondrej Podrazky, Ivan Kašík, Pavel Peterka, Jan Aubrecht, Filip Todorov
Publikováno v:
ICTON
High-power operation of fiber lasers was mainly enabled by the invention of cladding-pumping in a double-clad fiber structure. Pump absorption is enhanced by broken circular symmetry of inner cladding cross-sections and by mode-scrambling of the pump
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7e5fbd6818874e443ad0336da7f25ad
https://doi.org/10.1109/icton.2019.8840274
https://doi.org/10.1109/icton.2019.8840274
Publikováno v:
Fiber Lasers XV: Technology and Systems.
Ever extending applications of fiber lasers require energy efficient, high-power, small footprint and reliable fiber lasers and laser wavelength versatility. To meet these demands, next generation of active fibers for high-power fiber lasers is comin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc1ab08d94a7c79856508fc15ff0e46a
https://doi.org/10.1117/12.2286613
https://doi.org/10.1117/12.2286613
Publikováno v:
Micro-structured and Specialty Optical Fibres V.
The recently observed laser wavelength self-sweeping is known for its large sweeping range up to tens of nanometers, single- or few-longitudinal mode operation and self-pulsing output [1-5]. The self-sweeping can be explained by spatial hole burning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79a5e6ce7160c4012f4436f06f94525
https://doi.org/10.1117/12.2266696
https://doi.org/10.1117/12.2266696