Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Etsu Hashimoto"'
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9c1c698aeb1c859636b4b818470097b
https://doi.org/10.1109/jlt.2015.2464673
https://doi.org/10.1109/jlt.2015.2464673
Autor:
Yuichiro Ikuma, Kenya Suzuki, Tetsuo Takahashi, Mikitaka Itoh, Keita Yamaguchi, Etsu Hashimoto
Publikováno v:
OFC
We propose an ultra-high port count wavelength selective switch employing a waveguide-based input/output frontend that scales the port count to the order of hundreds. We demonstrate a 1 × 95 WSS and confirm its feasibility.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5babb6c97f3ef773daa97c49ba5dd4a
https://doi.org/10.1364/ofc.2015.tu3a.7
https://doi.org/10.1364/ofc.2015.tu3a.7
Publikováno v:
OFC
We propose an optimal variant of an M × N wavelength selective switch (WSS) for a transponder aggregator. A PLC frontend enables us to integrate an M array of 1 × N WSSs and port selection switches in simple optics. A high-port count (8 × 24) prot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d4769adf6300a215bb021964f933148
https://doi.org/10.1364/ofc.2015.th5a.4
https://doi.org/10.1364/ofc.2015.th5a.4
Autor:
Shingo Uchiyama, Joji Yamaguchi, Etsu Hashimoto, Yoshito Jin, Kei Kuwabara, Mitsuo Usui, Takako Ishihara, Naru Nemoto, Tomomi Sakata, Nakajima Mitsumasa
Publikováno v:
2013 International Conference on Optical MEMS and Nanophotonics (OMN).
Dielectric charging of MEMS micromirrors causes tilt angle drift, which is a major reliability problem for telecom applications. In this paper, we propose a physical model of angle drift in a MEMS mirror system considering surface charge motion on di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69fb92728a6513548866ed2179391add
https://doi.org/10.1109/omn.2013.6659038
https://doi.org/10.1109/omn.2013.6659038
Publikováno v:
Electronics and Communications in Japan (Part II: Electronics). 78:96-103
The magnetization microactuator has several advantages including a long-range operation and a self-latching actuation which are not available in an electrostatic microactuator. However, the magnetic actuator using an electromagnetic coil is not suita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6ec1bf7ab9e6f88ef04db826f520a7
https://doi.org/10.1002/ecjb.4420781212
https://doi.org/10.1002/ecjb.4420781212
Autor:
Masahito Tomizawa, Tetsuro Inui, Tetsuro Komukai, Toshio Watanabe, Yuko Kawajiri, Tomoyoshi Kataoka, Takeshi Kawai, Etsu Hashimoto, Yuzo Ishii, Mitsunori Fukutoku, Takayuki Kobayashi
Publikováno v:
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011.
We propose a simple multi-degree ROADM architecture based on a massive port count WSS with integrated colorless ports. We create a simple multi-ring network and demonstrate the multi-degree colorless ROADM.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f3f646f39220df06572557415faacb6
https://doi.org/10.1364/ofc.2011.otud2
https://doi.org/10.1364/ofc.2011.otud2
Autor:
Shingo Uchiyama, Nobuaki Matsuura, Fusao Shimokawa, Mitsuo Usui, Tomomi Sakata, Koichi Hadama, Nobuhiro Shimoyama, Yasuhiro Sato, Hiromu Ishii, Yuji Uenishi, Yuzo Ishii, Etsu Hashimoto, Tohru Matsuura
Publikováno v:
2009 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics.
A novel two-axis MEMS mirror array module for wavelength selective switches feature a new electrode structure that reduces electrical interference between adjacent channels. The fabricated 50-channel mirror module has good characteristics satisfying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ddfb5bc7f1f1e080ce9b97c489e67c
https://doi.org/10.1109/omems.2009.5338611
https://doi.org/10.1109/omems.2009.5338611
Publikováno v:
Proceedings of the International Solid-State Sensors and Actuators Conference - TRANSDUCERS '95.
A novel micro-mechanical relay using a thermally controlled magnetization actuator has been developed. The actuator is actuated by heating it with integrated titanium film heaters which changes its local magnetization, thus realizing a simple structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5837af47807bd14edf14512b18406318
https://doi.org/10.1109/sensor.1995.717203
https://doi.org/10.1109/sensor.1995.717203
Publikováno v:
Optomechatronic Micro/Nano Components, Devices, and Systems.
We propose a metamorphic network system, based on autonomously controlled wavelength division multiplexed devices. We will address the issue of how to assure and manage wavelength accuracy and controllability over the whole network to implement pract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6691419957ec51168b378276a6848569
https://doi.org/10.1117/12.577368
https://doi.org/10.1117/12.577368
Publikováno v:
Proceedings IEEE Micro Electro Mechanical Systems An Investigation of Micro Structures, Sensors, Actuators, Machines and Robotic Systems.
A thermally controlled magnetization actuator (TCMA), that is actuated by changing the local magnetization of the structure by spot heating, is proposed and its feasibility is confirmed experimentally. The generated torque of this actuator is measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78d867e638cd7b4bbe07fce5c1a4507a
https://doi.org/10.1109/memsys.1994.555607
https://doi.org/10.1109/memsys.1994.555607