Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Kabish Wisal"'
Publikováno v:
APL Photonics, Vol 9, Iss 6, Pp 066114-066114-18 (2024)
Transverse Mode Instability (TMI) that results from dynamic nonlinear thermo-optical scattering is the primary limitation to power scaling in high-power fiber lasers and amplifiers. It has been proposed that TMI can be suppressed by exciting multiple
Externí odkaz:
https://doaj.org/article/8acc79af3f824670b7751cc78c37f263
Publikováno v:
Physical Review X, Vol 14, Iss 3, p 031053 (2024)
Stimulated Brillouin scattering (SBS) is often an unwanted loss mechanism in both active and passive fibers. Highly multimode excitation of fibers has been proposed as a novel route toward efficient SBS suppression. Here, we develop a detailed, quant
Externí odkaz:
https://doaj.org/article/8374a7a69a1c424db8e0dafa29bad5a8
Autor:
Chun-Wei Chen, Linh V. Nguyen, Kabish Wisal, Shuen Wei, Stephen C. Warren-Smith, Ori Henderson-Sapir, Erik P. Schartner, Peyman Ahmadi, Heike Ebendorff-Heidepriem, A. Douglas Stone, David J. Ottaway, Hui Cao
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract The key challenge for high-power delivery through optical fibers is overcoming nonlinear optical effects. To keep a smooth output beam, most techniques for mitigating optical nonlinearities are restricted to single-mode fibers. Moving out of
Externí odkaz:
https://doaj.org/article/e184fcd1b96743c8993c03c39130f2ec
Autor:
Kabish Wisal, Chun-Wei Chen, Zeyu Kuang, Stephen C. Warren-Smith, Owen D. Miller, Hui Cao, A. Douglas Stone
Publikováno v:
Physics and Simulation of Optoelectronic Devices XXXI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c9988e8846d9d7b78b8aa6dcd56d3d
https://doi.org/10.1117/12.2649470
https://doi.org/10.1117/12.2649470
Publikováno v:
Fiber Lasers XX: Technology and Systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73841b419dad46b0ab57ed0fad41077d
https://doi.org/10.1117/12.2649461
https://doi.org/10.1117/12.2649461
High-power fiber laser amplifiers have enabled an increasing range of applications in industry, science, and defense. The power scaling for fiber amplifiers is currently limited by transverse mode instability. Most techniques for suppressing the inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b22f69f19079e0e666ef5553ef57eaff
http://arxiv.org/abs/2206.15438
http://arxiv.org/abs/2206.15438
Publikováno v:
Journal of Biomedical Optics. 27
Significance: Monitoring the movement and vital signs of patients in hospitals and other healthcare environments is a significant burden on healthcare staff. Early warning systems using smart bed sensors hold promise to relieve this burden and improv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58511395b4aab4b8802f1944c5a00800
https://doi.org/10.1117/1.jbo.27.6.067002
https://doi.org/10.1117/1.jbo.27.6.067002
Autor:
Kabish Wisal, Stephen C. Warren-Smith, Chun-Wei Chen, Ryan Behunin, Hui W. Cao, A. Douglas Stone
Publikováno v:
Physics and Simulation of Optoelectronic Devices XXX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ec38c052fce06aad86bb6e2c156499f
https://doi.org/10.1117/12.2608336
https://doi.org/10.1117/12.2608336
Publikováno v:
Nanophotonics, Vol 10, Iss 1, Pp 343-360 (2020)
We outline a recently developed theory of impedance-matching, or reflectionless excitation of arbitrary finite photonic structures in any dimension. It describes the necessary and sufficient conditions for perfectly reflectionless excitation to be po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d6a86d694dd719c3e2041601d579246
https://doaj.org/article/a172f02989fa42af8586beacc1b0e581
https://doaj.org/article/a172f02989fa42af8586beacc1b0e581
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
We demonstrate theoretically that SBS threshold can be increased significantly by many-mode excitations in multimode fibers. We experimentally focus multimode excitation to a diffraction limited spot, leading to high SBS threshold with good beam qual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::378243c91766c4cb7411f4da939866b3
https://doi.org/10.1364/fio.2022.jtu5a.27
https://doi.org/10.1364/fio.2022.jtu5a.27