Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Un-Chul Paek"'
Autor:
Uh Chan Ryu, Kyungwhan Oh, Seongwoo Yoo, Jayanta K. Sahu, Un Chul Paek, Seungtaek Kim, Johan Nilsson, Daniel B. S. Soh
Publikováno v:
Optical Fiber Technology. 12:297-304
Novel techniques to control the effective emission cross section of a rare earth-doped optical fiber with a functional cladding structure are reviewed for applications in active fiber devices. We discuss evanescent wave filtering (EWF) technique base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98ee1907c2df2dec5681eead2981aa46
https://doi.org/10.1016/j.yofte.2006.03.005
https://doi.org/10.1016/j.yofte.2006.03.005
Publikováno v:
Journal of the Optical Society of Korea. 9:140-144
In this paper we have investigated the guiding properties of photonic crystal fibers (PCFs) with a square-lattice of air-holes in the cladding. We have shown numerical results of PCFs with various air hole sizes and hole-to-hole spacings over a wide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22feedd3efce059b37ea674d40adf50d
https://doi.org/10.3807/josk.2005.9.4.140
https://doi.org/10.3807/josk.2005.9.4.140
Autor:
Un-Chul Paek, Yongmin Jung, Byeong Ha Lee, Luca Schenato, A. Pizzinat, Andrea Galtarossa, Luca Palmieri, Min-Kyu Kim, Kyunghwan Oh
Publikováno v:
Journal of Lightwave Technology. 23:4184-4191
Spinning a fiber is the most viable and used technique to reduce polarization mode dispersion (PMD). Many papers have shown that by properly tuning the spin parameters, the differential group delay (DGD) of spun fibers can be greatly reduced. However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eac4e2e3a5e70340d206802272e58fb9
https://doi.org/10.1109/jlt.2005.859462
https://doi.org/10.1109/jlt.2005.859462
Publikováno v:
Journal of Non-Crystalline Solids. 351:2299-2303
For the first time, we have developed Tm 2+ –Tm 3+ co-doped germanosilicate glass optical fibers by providing a strong reduction environment based on a solution doping technique in a modified chemical vapor deposition process. The incorporation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af72f098dd1f2322f77335c1c8ccda7a
https://doi.org/10.1016/j.jnoncrysol.2005.05.021
https://doi.org/10.1016/j.jnoncrysol.2005.05.021
Publikováno v:
IEICE Transactions on Electronics. :920-924
Press-induced long-period fiber gratings exhibiting strong core-to-cladding mode coupling were formed in photonic crystal fiber. Only one resonance peak was observed over a 600 nm spectral range and the resonant wavelength was tuned over the whole ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::489f95df1a599969b9ca5df34eb27d39
https://doi.org/10.1093/ietele/e88-c.5.920
https://doi.org/10.1093/ietele/e88-c.5.920
Publikováno v:
IEICE Transactions on Electronics. :883-888
We report the empirically obtained conditions for the fusion splicing with photonic crystal fibers (PCF) having large mode areas. By controlling the arc-power and the arc-time of a conventional electric-arc fusion splicer, the splicing loss between t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6ee65f5950916e37d337140f46346e8
https://doi.org/10.1093/ietele/e88-c.5.883
https://doi.org/10.1093/ietele/e88-c.5.883
Publikováno v:
Journal of Lightwave Technology. 23:588-596
Optical fiber connectors that had a long working distance and wide alignment tolerance were implemented by utilizing long-period fiber gratings (LPGs) written in double-cladding fiber. The power coupling between two separated pieces of fiber was acco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e8d3a4fb81ea05201843144d9906ecd
https://doi.org/10.1109/jlt.2004.841257
https://doi.org/10.1109/jlt.2004.841257
Publikováno v:
Journal of Lightwave Technology. 23:551-557
We will discuss a novel noncontact removal technique of optical fiber coating in continuous and uninterrupted manner with hot air stream. We observed the mean breaking tensile strengths of the optical fibers coated with the UV-cured protective polyme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd67e1a69a102737a365b98fb3b2cadf
https://doi.org/10.1109/jlt.2004.842305
https://doi.org/10.1109/jlt.2004.842305
Publikováno v:
Journal of Lightwave Technology. 23:597-608
This paper proposes and demonstrates a technique for repetition-rate multiplication of an optical pulse train having an arbitrary period or pattern and the optical temporal encoding/decoding for the optical-code-division multiple-access (O-CDMA) syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c49dcdcf1ab2bcfb710be6849b8f573
https://doi.org/10.1109/jlt.2004.842299
https://doi.org/10.1109/jlt.2004.842299
Publikováno v:
Journal of Lightwave Technology. 23:543-550
Germanosilicate glass optical fibers incorporated with the Tm/sup 2+/ ions were fabricated to enhance optical nonlinearity by providing a strong reduction environment based on the solution doping technique in the modified chemical vapor deposition (M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8409f9492b3c8bf8911fb735da3b07f0
https://doi.org/10.1109/jlt.2004.841774
https://doi.org/10.1109/jlt.2004.841774