Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Osamu Moriwaki"'
Autor:
Osamu Moriwaki, Kazushige Yonenaga, Satoshi Ide, Noboru Takachio, Hiroshi Onaka, Kenya Suzuki
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
We have successfully demonstrated a large optical switching system with short switching times. Our transient time optimized digital coherent DSP, wavelength tunable laser, and silica- based PLC switch are the key components of the system.
Autor:
Kenya Suzuki, Osamu Moriwaki, Koichi Hadama, Keita Yamaguchi, Hiroki Taniguchi, Yoshiaki Kisaka, Daisuke Ogawa, Makoto Takeshita, Stefano Camatel, Yiran Ma, Mitsunori Fukutoku
Colorless, directionless, and contentionless reconfigurable optical add/drop multiplexing (CDC-ROADM) provides highly flexible physical layer network configuration. Such CDC-ROADM must operate in multiple wavelength bands which are being increasingly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9b64d9ad6c4c730e7386f74c579bbc7
http://arxiv.org/abs/2209.10084
http://arxiv.org/abs/2209.10084
Publikováno v:
2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC).
Autor:
Kazushige Yonenaga, Kenya Suzuki, Noboru Takachio, Toshiki Tanaka, Hiroshi Onaka, Osamu Moriwaki
Publikováno v:
OFC
We reduced transient response times of a practically used switch element, wavelength- tunable laser, and DSP—key components of optical switching systems—with 1000-port-class scalability and 100-μs order switching time for datacenter applications
Publikováno v:
Journal of Lightwave Technology. 34:67-72
We propose a compact transponder aggregator (TPA) consisting of a wavelength selective switch (WSS) array and a direction switch array. It has no intrinsic splitting loss and therefore the number of ports can exceed that of a conventional multicast s
Publikováno v:
2016 IEEE 6th International Conference on Photonics (ICP).
We propose a novel optical switch configuration that utilizes erbium-doped fiber amplifiers (EDFAs) and asymmetric-port-count cyclic arrayed-waveguide gratings (AWGs). By optimizing the number of utilized input ports of the cyclic AWGs, our proposed
Autor:
H. Takahashi, Hiroshi Hasegawa, Noguchi Kazuto, Y. Ohmori, Ken-ichi Sato, Tadashi Sakamoto, Osamu Moriwaki, Masayuki Okuno
Publikováno v:
Journal of Lightwave Technology. 29:449-455
The first practical terabit-scale hierarchical optical cross-connect system is realized by employing silica-based planar lightwave circuit devices. The system is scalable to 320 line cross connects + 160 client cross connects, and fully implemented e
Publikováno v:
IEICE Transactions on Communications. :918-927
We propose a compact matrix-switch-based hierarchical optical cross-connect (HOXC) architecture that effectively handles the colorless waveband add/drop ratio restriction so as to realize switch scale reduction. In order to implement the colorless wa
Publikováno v:
Journal of Lightwave Technology. 27:30-40
We develop and analyze a new waveband multi/demultiplexer that exploits the routing functions of arrayed-waveguide gratings (AWG). The device can accommodate multiple input/output fibers simultaneously and be implemented monolithically using silica p
Autor:
Osamu Moriwaki, Kenya Suzuki, Naru Nemoto, Tetsuo Takahashi, Toshio Watanabe, Yuichiro Ikuma, Mikitaka Itoh
Publikováno v:
2015 European Conference on Optical Communication (ECOC).
We demonstrate a compact 8 × 8 broadcast-and-select wavelength cross connect with add/drop ports for 8-degree node. A combination of waveguide-based frontend and free-space optics allows us to integrate eight arrays of 1 × 8 WSSs and 1 × 8 splitte