Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Raghuraman, Sidharthan"'
Autor:
Yuhao Chen, Shaoxiang Chen, Raghuraman Sidharthan, Chen Jian Cheng, Kun Liu, Shreesha Rao, Ole Bang, Qijie Wang, Ding Yuan Tang, Seongwoo Yoo
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 6, Pp 1-12 (2019)
We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped core. In
Externí odkaz:
https://doaj.org/article/607c0437c54d42758276f7106338390f
Autor:
Di Lin, Duanyang Xu, Jing He, Yutong Feng, Zhengqi Ren, Raghuraman Sidharthan, Yongmin Jung, Seongwoo Yoo, David J. Richardson
Publikováno v:
Journal of Lightwave Technology. 40:7175-7179
We demonstrate a high-energy and high-average power Mamyshev oscillator based on a high performance large-mode-area step-index germanosilicate-cladding Yb-doped fiber. The oscillation of higher-order modes is effectively suppressed by employing appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da1cafccca545c9eae55508f5e64afb4
https://doi.org/10.1109/jlt.2022.3198737
https://doi.org/10.1109/jlt.2022.3198737
Akademický článek
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Investigation of Core Compositions for Efficient 976 nm Lasing From Step Index Large-Mode-Area Fiber
Autor:
Huizi Li, J. W. Kim, Chen Jian Chang, Nan Xia, Raghuraman Sidharthan, Jie Ma, Shaoxiang Chen, Seongwoo Yoo
Publikováno v:
IEEE Photonics Technology Letters. 32:1457-1460
We present an efficient 976 nm fiber laser achieved in a step index large-mode-area (LMA) fiber by 915 nm diode pumping. The 976 nm lasing was enabled using spectroscopic engineering in a fiber design that helps suppress the competing 1030 nm gain. O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c64689b7995d2550bebf589b0487bc3
https://doi.org/10.1109/lpt.2020.3033993
https://doi.org/10.1109/lpt.2020.3033993
Autor:
Yanyan Zhou, Raghuraman Sidharthan, Amiel A. Ishaaya, Udi Ben Ami, W. J. Lai, Junhua Ji, Xiaosheng Huang, Yehuda Benudiz, Nan Xia, Seongwoo Yoo, Jichao Zang
Publikováno v:
IEEE Photonics Technology Letters. 32:722-725
We present mode-selection in a laser and an amplifier from a multicore Ytterbium (Yb) doped step-index fiber with six large mode area and low numerical aperture (NA) cores, fabricated using a combination of chelate delivery system (CDS) and stack and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a006b37ee8e447ffa1fde65498315c49
https://doi.org/10.1109/lpt.2020.2992031
https://doi.org/10.1109/lpt.2020.2992031
Publikováno v:
Conference on Lasers and Electro-Optics.
A parabolic core W-type fiber offers normal dispersion and a short-pass filtering effect while being bent, enabling high gain in a 1.7-µm region. An achievable core size of the design is studied within fabrication capability.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3830ec4fe5c0c6408b9147641e7b891
https://doi.org/10.1364/cleo_at.2022.ath2c.6
https://doi.org/10.1364/cleo_at.2022.ath2c.6
Akademický článek
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Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Demand for high power fiber lasers at short wavelength infra-red (SWIR) region of 1.7µm has increased in recent years due to their usefulness in various fields such as bio-imaging, material processing, laser treatment, liposuction etc [1] , owing to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ccaa42c423e7964b0a52341d9edbdf6
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9592615
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9592615
W-type normal dispersion thulium-doped fiber-based high-energy all-fiber femtosecond laser at 1.7 µm
Autor:
Huizi Li, Yuhao Chen, Dingyuan Tang, Raghuraman Sidharthan, Seongwoo Yoo, Kun Liu, Shaoxiang Chen, Chen Jian Chang, Qi Jie Wang
We propose a parabolic W-type thulium-doped fiber for the 1.7 µm high-energy femtosecond pulsed laser. Despite its attractive normal dispersion, the fiber offers high gain in 1.7 µm region thanks to its distributed short-pass filtering effect. With
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b734acbf01e5e9717fb47e238e858b2e
https://hdl.handle.net/10356/159929
https://hdl.handle.net/10356/159929
Akademický článek
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