Zobrazeno 1 - 10
of 22
pro vyhledávání: '"CHANGGENG YE"'
Publikováno v:
Applied optics. 56(4)
The measurement of fundamental mode bend loss is thoroughly studied in large-mode-area few-mode optical fibers. The influencing factors, including spectral properties of the light source, modal power content and cladding light, are experimentally inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f1a4d465117d6d246090da28cb32c3d
https://pubmed.ncbi.nlm.nih.gov/28158094
https://pubmed.ncbi.nlm.nih.gov/28158094
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 20:188-199
In this paper we discuss recent progress in exploring short-term and long-term stability of high power Yb-doped fiber lasers and amplifiers. Long-term stability is associated with photodarkening effects that can significantly reduce operational lifet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68a654e879dee22e202c8fb9b9b00224
https://doi.org/10.1109/jstqe.2014.2310657
https://doi.org/10.1109/jstqe.2014.2310657
Publikováno v:
Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF).
Large mode 3C® optical fiber operating at 300kW of peak power and 25W of average power is shown to maintain truly single transverse mode functionality even after more than 1.5 years of continuous operation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::911bb996f440fcadfca79501aae402b9
https://doi.org/10.1364/sof.2016.sotu1g.6
https://doi.org/10.1364/sof.2016.sotu1g.6
Publikováno v:
Laser Physics Letters. 4:376-381
A comprehensive observation of the stimulated Brillouin scattering (SBS) phenomena in a high power nanosecond linearly polarized Yb-doped double-clad fiber amplifier is presented. According to the behavior of SBS, the amplification process is divided
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53334d9bbe6a7af7ef287ba7f3a868d0
https://doi.org/10.1002/lapl.200610123
https://doi.org/10.1002/lapl.200610123
Publikováno v:
SPIE Proceedings.
We investigate the measurement of bend losses in few-mode large-mode-area (LMA) fibers. The influence of the light source spectral characteristics, modal power content and cladding light on the measurement accuracy and precision is studied experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::648fc0bd1b9e25c606a44ce0636d79dd
https://doi.org/10.1117/12.2076813
https://doi.org/10.1117/12.2076813
Autor:
J. J. Montiel i Ponsoda, Seppo Honkanen, Ari Tervonen, Teemu Kokki, Changgeng Ye, Joona Koponen
Publikováno v:
Electronics Letters. 47:819-821
A confined-doped ytterbium fibre with a 41 µm core diameter has been fabricated by direct nanoparticle deposition process. Near-diffraction-limited beam quality (M2∼1.3) was experimentally demonstrated from an amplified spontaneous emission source
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76a5d8512b943b882c8cc0e581028a4d
https://doi.org/10.1049/el.2011.1105
https://doi.org/10.1049/el.2011.1105
Autor:
Changgeng Ye, Ville Aallos, Geoff Fanning, Jared Green, Timpthy N. Kutscha, Roger Farrow, Tyson L. Lowder, Timothy S. McComb, David Logan, Dennis McCal, Joona Koponen
Publikováno v:
SPIE Proceedings.
We demonstrate flexible performance in a fiber MOPA system based on nLIGHT’s PFL seed laser platform and chirally coupled core (3C®) fiber. The 33μm core, 27μm MFD 3C fiber used in these demonstrations is fabricated in volume at nLIGHT’s Finla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::071c9fb77f20cc74b6374a81b6692c08
https://doi.org/10.1117/12.2037974
https://doi.org/10.1117/12.2037974
Publikováno v:
SPIE Proceedings.
We present an experimental study on mode coupling characteristics of few-mode large-mode-area (LMA) fibers, which are widely used in high power fiber lasers. The modal power allocation is measured by modal decomposition of the nearfield intensity pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c68e82075ca78472573ef2f948f09a6
https://doi.org/10.1117/12.2038575
https://doi.org/10.1117/12.2038575
Publikováno v:
Fiber Lasers X: Technology, Systems, and Applications.
We report an experimental study on mode coupling in various large-diameter multi-mode silica optical fibers. The evolution of the far-field angular power distribution is experimentally measured, and the mode coupling characteristics are studied on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4fce73cc9cc7087b4fda192988bba38
https://doi.org/10.1117/12.2002819
https://doi.org/10.1117/12.2002819
Autor:
Roger Farrow, David Logan, Tyson L. Lowder, Changgeng Ye, T. Sosnowski, Timothy S. McComb, Dennis McCal, Joona Koponen
Publikováno v:
Advanced Solid-State Lasers Congress.
We demonstrate 3C fiber amplification of bursts of up to ten variable duration (50-500ps) and frequency pulses. 300kW peak power pulses with 160μJ, 50ps burst energy were achieved at 32W average power and M2~1.1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01b89fb498fe33de15e7a6bed2f2fad6
https://doi.org/10.1364/assl.2013.jth2a.36
https://doi.org/10.1364/assl.2013.jth2a.36