Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yoshitaka Yokoyama"'
Autor:
Shin Tanaka, Kenichi Nishi, Kanbe Satoshi, Yasuhiko Arakawa, Yoshitaka Yokoyama, Yasunari Maeda, Hayato Kondo, M. Sugawara, Takeo Kageyama, Tsuyoshi Yamamoto, Kan Takada, Reio Mochida, Keizo Takemasa
Publikováno v:
Optical Fiber Technology. 20:714-724
Semiconductor DFB (Distributed feedback) laser diodes with an operating wavelength of 1064 nm, which is suitable for pulse-on-demand fiber laser, have been developed. The stable performance of CW and nanosecond/picosecond pulsed operation is reviewed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76ca3c00ef1091d3c9a43d3325b6a066
https://doi.org/10.1016/j.yofte.2014.08.004
https://doi.org/10.1016/j.yofte.2014.08.004
Autor:
Katsuyuki Watanabe, Yu Tanaka, Yasuhiko Arakawa, Keizo Takemasa, Yoshitaka Yokoyama, Tomoyuki Akiyama, Kenichi Nishi, M. Sugawara
Publikováno v:
Journal of Crystal Growth. 378:627-630
We have progressed the growth procedure for high-density highly-uniform In(Ga)As/GaAs quantum dots (QDs) by using molecular beam epitaxy and have demonstrated high-gain 1.06-μm QD lasers for consumer electronics. The structural and optical propertie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::186dc8b8cd14b067fc33b0c9df6346fe
https://doi.org/10.1016/j.jcrysgro.2012.12.107
https://doi.org/10.1016/j.jcrysgro.2012.12.107
Autor:
Kenji Hashimoto, Akira Kishimoto, Yoshitaka Yokoyama, Naoko Nakatsu, Katsusuke Yatomi, Kazuaki Fujita
Publikováno v:
Journal of Clinical Psychopharmacology. 33:143-145
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2d70c2aa35f1105fc1fc5d4a0db2dae
https://doi.org/10.1097/01.jcp.0000426189.26798.3d
https://doi.org/10.1097/01.jcp.0000426189.26798.3d
Autor:
K. Mori, Tadashi Nakazaki, Yoshitaka Yokoyama, Shinya Sudo, Masayuki Yamaguchi, Koji Kudo, Tatsuya Sasaki
Publikováno v:
Journal of Crystal Growth. 221:189-195
We have investigated the dependence of neighboring mask interference on growth pressure in narrow-stripe selective MOVPE with arrayed stripe masks for the growth of densely-arrayed optical waveguides. Atmospheric-pressure MOVPE is effective in fabric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbdb5bcee5d11fc76280818af080075b
https://doi.org/10.1016/s0022-0248(00)00684-9
https://doi.org/10.1016/s0022-0248(00)00684-9
Publikováno v:
IEEE Photonics Technology Letters. 15:290-292
A wide-band wavelength-selectable light source module having an integrated multiwavelength locker has been developed. An eight-distributed-feedback (DFB) arrayed monolithic light source was designed to have 40-nm tunable range in the L-band by coveri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0db6456a0f083fffac91f1af6d76b0b
https://doi.org/10.1109/lpt.2002.806862
https://doi.org/10.1109/lpt.2002.806862
Autor:
Hiroshi Hatakeyama, M. Yamaguchi, Masashige Ishizaka, T. Tamanuki, K. Mori, T. Morimoto, K. Kudo, Y. Furushima, Y. Muroya, T. Hosoda, Yoshitaka Yokoyama, Shinya Sudo, K. Yashiki, Tokuhito Sasaki
Publikováno v:
IEEE Photonics Technology Letters. 14:137-139
In this letter, we have simultaneously fabricated five wavelength-selectable microarray light sources (WSLs), each having a different wavelength range integrated with an electroabsorption (EA) modulator on a single wafer. We also introduced a novel d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7524068a9a6b944dd6ab5b4c911c271
https://doi.org/10.1109/68.980467
https://doi.org/10.1109/68.980467
Autor:
K. Kudo, Tokuhito Sasaki, T. Morimoto, Yoshitaka Yokoyama, K. Yashiki, M. Yamaguchi, Kiichi Hamamoto
Publikováno v:
IEEE Photonics Technology Letters. 12:242-244
We developed compact (1.136 mm/sup 2/) eight-channel wavelength-selectable microarray distributed feedback laser diodes (DFB-LD's) with a monolithically integrated 8/spl times/1 multimode-interference (MMI) optical combiner, a semiconductor optical a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::371479ba1e0de507df4be359086c90fa
https://doi.org/10.1109/68.826901
https://doi.org/10.1109/68.826901
Autor:
Yutaka Kanamori, Kohei Hashizume, Masahiko Sugiyama, Shiro Kozuma, Yoshitaka Yokoyama, Tetsuya Tomonaga, Yukiko Kawana, Yuji Taketani, Keiji Goishi, Takashi Igarashi, Akihiko Kikuchi
Publikováno v:
Journal of pediatric surgery. 40(11)
Intrapericardial diaphragmatic hernia is a very rare phenotype of neonatal diaphragmatic hernia which is thought to be caused by the developmental failure of the septum transversum. There have been only 10 cases reported since 1980, and among them, o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8b61b943e4a437642b7e6a2d3a84c71
https://pubmed.ncbi.nlm.nih.gov/16291140
https://pubmed.ncbi.nlm.nih.gov/16291140
Publikováno v:
SPIE Proceedings.
Liquid crystal (LC) lens with voltage and azimuth dependent focus is realized by using divided electrode structure. By applying appropriate potentials on the divided electrode, the LC cell behaves like an optical lens having astigmatic properties; th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98f1e502e0929072f55706a5c8675d87
https://doi.org/10.1117/12.576704
https://doi.org/10.1117/12.576704
Publikováno v:
Optical Fiber Communication Conference and Exhibit.
We have first reported on a 94-channel wide-band WSL installed in a 22-pin butterfly package with a multi-wavelength locker. We could realize 40-nm operation in the L-band for an 8-DFB arrayed monolithic WSL by covering 5 nm per DF3-LD. By using a mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22270a5da057faeed65324910762b040
https://doi.org/10.1109/ofc.2002.1036309
https://doi.org/10.1109/ofc.2002.1036309