Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Naoki Ooba"'
Publikováno v:
Thin Solid Films. 370:311-314
We newly synthesized cross-linked silicone from methyl and deuterated phenyl ( d -phenyl) groups in various amounts and used the resultant polymers to fabricate single-mode optical waveguides. We measured the losses and birefringence of the waveguide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b253770e7a1f7211f593c1c686d6412
https://doi.org/10.1016/s0040-6090(00)00921-4
https://doi.org/10.1016/s0040-6090(00)00921-4
Publikováno v:
IEEE Photonics Technology Letters. 21:1701-1703
We propose a tunable optical dispersion compensator (TODC) that uses an arrayed waveguide grating (AWG) and a flat mirror. The TODC employs simple and cost-effective optics, and its chromatic dispersion can be changed simply by translating the AWG. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da870229addae498d9a5ee68924b9b8a
https://doi.org/10.1109/lpt.2009.2031876
https://doi.org/10.1109/lpt.2009.2031876
Autor:
S. Sohma, Naoki Ooba, Kunihiko Mori, Kazunori Seno, Kazunori Suzuki, Atsushi Takada, Hiroji Masuda
Publikováno v:
IEEE Photonics Technology Letters. 21:1271-1273
We describe the proof-of-concept demonstration of flexible chromatic dispersion compensation over the entire L-band region wavelength-division-multiplexing transparent networks operating at over 40 Gb/s using span-by-span compensation with an arrayed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1858e668bd27cf79c62497cbff6e4ac
https://doi.org/10.1109/lpt.2009.2025661
https://doi.org/10.1109/lpt.2009.2025661
Autor:
Masamichi Fujiwara, Hiro Suzuki, Tetsuya Suzuki, Naoki Ooba, Makoto Tsubokawa, Takuya Tanaka, Hideaki Kimura
Publikováno v:
IEEE Photonics Technology Letters. 20:1612-1614
This letter proposes a centralized frequency stabilization technique for uplink signals in dense wavelength- division- multiplexed passive optical networks; it is based on dithering the transmission spectra of the demultiplexer. To ensure that the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b6ca40f13889ebcb0443677b999541e
https://doi.org/10.1109/lpt.2008.2002730
https://doi.org/10.1109/lpt.2008.2002730
Publikováno v:
Journal of Lightwave Technology. 16:1049-1055
Polymeric optical waveguides fabricated using a newly developed silicone resin have a low birefringence as well as low propagation loss and good environmental stability. Optical waveguide circuits including a directional coupler, an arrayed waveguide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7abc17ae995482c79aebd564e051d32
https://doi.org/10.1109/50.681462
https://doi.org/10.1109/50.681462
Publikováno v:
Macromolecules. 31:7-14
Palladium-catalyzed polycondensation between p-diethynylbenzene (HC⋮CPhC⋮CH) and 2,5-diiodo-3-hexylthiophene (ITh(Hex)I) has been carried out under various conditions by changing the polymerization temperature, medium, and added amines. The polyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ed190223dc1258204fe7b6713d4e048
https://doi.org/10.1021/ma971078b
https://doi.org/10.1021/ma971078b
Autor:
Tsukasa Maruyama, † Zhen-hua Zhou, Naoki Ooba, Kenichi Kizu, Satoru Tomaru, Masaki Shimura, † Bang-Lin Lee, Takakazu Yamamoto, Toshikuni Kaino, Takaki Kanbara, and Kenji Kubota, Takashi Fukuda, Takashi Kurihara, Yoshiyuki Nakamura, Shintaro Sasaki
Publikováno v:
Journal of the American Chemical Society. 118:10389-10399
Various π-conjugated copolymers constituted of π-excessive thiophene, selenophene, or furan units (Ar) and π-deficient pyridine or quinoxaline (Ar‘) units have been prepared in high yields by the following organometallic polycondensation methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3733792746e7126e9134199747683c1
https://doi.org/10.1021/ja961550t
https://doi.org/10.1021/ja961550t
Autor:
Kazunori Seno, Kenya Suzuki, Toshio Watanabe, Mikitaka Itoh, Sakamoto Tadashi, Tetsuo Takahashi, Naoki Ooba
Publikováno v:
National Fiber Optic Engineers Conference.
We propose a spatial beam transformer (SBT) for a wavelength selective switch, which is monolithically integrated on a silica-based planar lightwave circuit (PLC). The PLC-integrated SBT has advantages such as freedom from precise alignment and the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39dcc2bee771aa8794cbfa368ebfd889
https://doi.org/10.1364/nfoec.2012.jth2a.5
https://doi.org/10.1364/nfoec.2012.jth2a.5
Publikováno v:
The Journal of Physical Chemistry. 98:12270-12277
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51b24ab5244baa96a1951a36c6e5b51d
https://doi.org/10.1021/j100098a024
https://doi.org/10.1021/j100098a024
Autor:
Kenichi Kizu, Wataru Yamada, Satoru Tomaru, Naoki Ooba, Masakazu Takagi, Takashi Kurihara, Tsukasa Maruyama, Takakazu Yamamoto, Toshikuni Kaino, Kenji Kubota
Publikováno v:
Macromolecules. 27:6620-6626
Palladium-catalyzed polycondensation between dihalo aromatic compounds X-Ar-X (3-hexyl-2,5-diiodothiophene, 2,5-dibromoselenophene, and 3,4-dinitro-2,5-dibromothiophene) and diethynyl aromatic compounds HC≡C-Ar'-C≡CH (2,5-diethynylpyridine, 3-hex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d999fa38761a37eb8af4a318e0320c3
https://doi.org/10.1021/ma00100a055
https://doi.org/10.1021/ma00100a055