Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Radha K. Pattnaik"'
Autor:
Radha K. Pattnaik, Viktor Fromzel, Jun Zhang, Mark Dubinskii, Nikolay Ter-Gabrielyan, Colin C. Baker, Jasbinder S. Sanghera, E. Joseph Friebele
Publikováno v:
Optical Components and Materials XVIII.
Solid-state laser based on Er-doped gain medium, is a promising approach to designing directly diode-pumped eye-safer pulsed sources in the spectral range ~1.45-1.65 m. This approach allows obtaining spectrally broad laser outputs with high effici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af77708e985367434b5da53c180d220c
https://doi.org/10.1117/12.2588457
https://doi.org/10.1117/12.2588457
Publikováno v:
Laser Congress 2020 (ASSL, LAC).
2.3 W of CW power at 2.8 µm has been achieved at slope efficiency of 13% wrt absorbed pump power in this first demonstration of an Er-doped fluoride fiber laser pumped at ~1.5 µm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::134473fa5ae9f5078fc550999a24c47e
https://doi.org/10.1364/assl.2020.aw5a.6
https://doi.org/10.1364/assl.2020.aw5a.6
Autor:
Daniel L. Rhonehouse, Jun Zhang, Woohong Kim, Ashley Burdett, Mark Dubinskii, Jasbinder S. Sanghera, Radha K. Pattnaik, Colin C. Baker, E. Joseph Friebele
Publikováno v:
Optical Components and Materials XV.
Erbium doped fiber lasers are attractive candidates for high energy lasers (HELs) used in directed energy applications because they operate at wavelengths that are both safer to the eye and in a high atmospheric transmission window. A significant iss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97a636c243b76a083f78c09eebcb9614
https://doi.org/10.1117/12.2296604
https://doi.org/10.1117/12.2296604
Autor:
Mark Dubinskii, Jun Zhang, E. Joseph Friebele, Jasbinder S. Sanghera, Woohong Kim, Ashley Burdett, Radha K. Pattnaik, Colin C. Baker
Publikováno v:
Optical Components and Materials XV.
Successful power scaling of the Er-doped fiber laser heavily depends on Er dopant concentration. In order to scale the power up to a kW class, core absorption should be well over the limits defined by current commercial doping techniques. Recently de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae3273c13af3064cdb9adaf9f7d43aed
https://doi.org/10.1117/12.2296922
https://doi.org/10.1117/12.2296922
Autor:
W. Kim, Jas S. Sanghera, E. J. Friebele, Dan Rhonehouse, A. Burdett, Radha K. Pattnaik, Colin C. Baker, Mark Dubinskii, Jun Zhang
Publikováno v:
Laser Congress 2018 (ASSL).
We report ~140 W of power from the laser based on Er-nanoparticle-doped fiber with direct diode pumping at 1528 nm. This is believed to be the highest power ever reported from resonantly diode-pumped Er-fiber laser.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e089fa507ae49f4b329add5f117acb1
https://doi.org/10.1364/assl.2018.am5a.1
https://doi.org/10.1364/assl.2018.am5a.1
Autor:
Mark Dubinskii, Colin C. Baker, Woohong Kim, Radha K. Pattnaik, Jun Zhang, E. Joseph Friebele, Daniel L. Rhonehouse, Ashley Burdett, Jasbinder S. Sanghera
Publikováno v:
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF).
Co-doping of Er with RE ions in silica fibers is used to reduce Er clustering. A single mode core pumped Er-La fiber with an Er ion concentration of 1.37×1025 ions/m3 exhibited a slope efficiency of 76%.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efa4c531d385760aa44fddc53273c8b8
https://doi.org/10.1364/sof.2018.som3h.7
https://doi.org/10.1364/sof.2018.som3h.7
Autor:
Courtney Kucera, John Ballato, Colin C. Baker, Alexander Hemming, Ashley Burdett, Jake Fontana, Mark Dubinskii, E. Joseph Friebele, Steven R. Bowman, Nikita Simakov, Jasbinder S. Sanghera, John Haub, L. Brandon Shaw, Amber Vargas, Woohong Kim, Jun Zhang, Daniel L. Rhonehouse, Radha K. Pattnaik
Publikováno v:
Optics express. 25(12)
A nanoparticle (NP) doping technique was developed for fabricating erbium (Er)- and holmium (Ho)-doped silica-based optical fibers for high energy lasers. Slope efficiencies in excess of 74% were realized for Er NP doping in a single mode fiber based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff642656eae3f3c76faf767d85aa1ec1
https://pubmed.ncbi.nlm.nih.gov/28788833
https://pubmed.ncbi.nlm.nih.gov/28788833
Autor:
Colin C. Baker, Y. Chen, Jasbinder S. Sanghera, Jun Zhang, Woohong Kim, Mark Dubinskii, Daniel L. Rhonehouse, E. Joseph Friebele, Radha K. Pattnaik, Barbara A. Marcheschi, John R. Peele
Publikováno v:
Fiber Lasers XIV: Technology and Systems.
Erbium-doped fiber lasers are attractive for directed energy weapons applications because they operate in a wavelength region that is both eye-safer and a window of high atmospheric transmission. For these applications a clad-pumped design is desirab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::281031891129ddb58d3b46fb7f3d6947
https://doi.org/10.1117/12.2256594
https://doi.org/10.1117/12.2256594
Autor:
Woohong Kim, Alexander Hemming, Ashley Burdett, John Ballato, Amber Vargas, Radha K. Pattnaik, Jun Zhang, Edward J. Friebele, Courtney Kucera, Jasbinder S. Sanghera, Mark Dubinskii, John Haub, Colin C. Baker, Nikita Simikov
Publikováno v:
Advanced Photonics 2017 (IPR, NOMA, Sensors, Networks, SPPCom, PS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::391e8151719bb7de9ecb8adce7150b81
https://doi.org/10.1364/noma.2017.now2c.2
https://doi.org/10.1364/noma.2017.now2c.2
Autor:
Cody Mart, Jake Fontana, John R. Peele, Radha K. Pattnaik, Iyad Dajani, Jun Zhang, Charles G. Askins, Jasbinder S. Sanghera, Michael Hunt, Mark Dubinskii, Colin C. Baker, Woohong Kim, Y. Chen, E. Joseph Friebele, Larry D. Merkle, Barbara A. Marcheschi
Publikováno v:
SPIE Proceedings.
A nanoparticle (NP) doping technique was used for making erbium-doped fibers (EDFs) for high energy lasers. The nanoparticles were doped into the silica soot of preforms, which were drawn into fibers. The Er luminescence lifetimes of the NP-doped cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13f668652d3b9da930c3e822783108bf
https://doi.org/10.1117/12.2217905
https://doi.org/10.1117/12.2217905